DDos Attack Protection

Denial of Service (and its lesser known cousins, Distributed Denial of Service) attacks can be a worst nightmare for network administrators. Once under way are very difficult to resolve quickly, and could cost hours of productivity and frustration that people can not access their web services or remote access of their work. What is a DDoS attack? And more importantly, what are the best ways to prevent a DDoS attack?

A distributed denial of service is when malicious users target enterprise servers with fake requests for service or wrong, flooding the servers with traffic until it shuts down, or at least be so busy managing Internet traffic false actual data traffic can not get through. This can be paralyzing or stop completely web, email, and any other data transport services that your company needs to get its work done, resulting in many man-hours lost as problems are resolved. However, there are several ways to prevent attacks, and quality of managed hosting company will use all or some of them on their dedicated servers.

The first and most important line of defense is a traffic analyzer. These software products consists of a set of computer programs that constantly analyze the source and data traffic in search of the most common signs of bogus traffic requests and other markers that are commonly found as part of DDoS attacks. Once this type of traffic is the best software can filter out and preventing it from reaching the server in the first place. Then in the next line of defense, a dedicated server company will have a firewall that filters traffic further. The work firewall preventing access to the server ports and are rarely used resources according to the guidelines specified. By restricting these resources usually unprotected server software, firewalls to block and prevent some of the most common access points and weaknesses for Denial of Service attacks. Business hosting And finally, many managed to provide a backup set with a distinct and separate address and data connection, so that in the case of a DDoS attack, the service can be switched to backup not affected.

Tags: DDoS, denial of service
Posted in DDoS Attacks | No Comments »

Hackers have an arsenal of methods to move from denial of service (DoS). The following seven sections focus on the extent of the dilemma faced by organizations trying to battle the DoS threat. TippingPoint provides solutions to combat these common methods of DDoS attacks:

• Vulnerabilities

• Staffing Zombie

• Tools attack

• Attacks bandwidth

• SYN Floods

• Floods Connection established

• Connections per second Floods

Method 1 – Vulnerabilities

Attackers can attempt to crash a service or basic operating system in a straight line through a network. These attacks immobilize the services by exploiting buffer out and the realization that there are other servers on the Dodge helpless. Vulnerability attacks do not want general resources or bandwidth to commit, attackers only need to know about the survival of the susceptibility to be able to develop and cause widespread damage. Once the attacker has control of a vulnerable service, request, or operating system, that abuse of the opening for restraining systems in the accident and stop an entire network from the inside.

Method 2 – Zombie Conscription

The same vulnerabilities used to crash a server allow hackers to change on vulnerable PCs DDoS zombies. Once the hacker develop increased susceptibility to manage the system, it plants a backdoor into the system for later use in the commission of DDoS attacks. The Trojan or similar illness, provides a clue to the system. Once the attacker has the map, which dimly control of the network, making the server a “zombie”, which is expected to attack the authority given. The use of these zombies, attackers can send a large number of DoS and DDoS attacks with a secret. Viruses can also be used for recruitment Zombie. For example, the MyDoom bug was designed to convert PCs into zombies that attacked SCO and Microsoft in a predetermined time programmed into the virus. Other viruses adjustment backdoors that allow hackers to show coordinated attacks, increased participation in attacks across networks around the area. The following figures detail how the attackers and start making these attacks against the network.

Method 3 – Attack Tools

Through the recruitment of zombies, hackers use the secret communication channels to connect and manage their army of zombies. They can choose from hundreds of programs outside of the platform and tools backdoor tradition of websites. These tools and programs begin to penetrate into these attacks and control networks as zombie armies to be another attack from within. Once they have zombie systems, which can use other tools to send a command to all the solitary zombies at once. In some cases, the commands are performed on the ICMP or UDP packets that can turn your firewall. In other cases, the “zombie phones home”, making a TCP connection to the master. Once the connection is created, the teacher can handle the Zombie.

The tools used to attack and control systems include:

• Tribe Flood Network (TFN) – Spotlight on Smurf, UDP, SYN, ICMP and reverb applied to the floods.
• Tribe Flood Network 2000 (TFN2K) – The updated version of TFN.
• Trinoo – Focuses on the UDP flood. Send UDP packets to ports in use opportunity.
The size is configurable.
• Stacheldraht – software tool that focuses on TCP ACK, TCP NULL, raging floods, DNS, and floods with random TCP packet headers.

DDoS tools are growing both in terms of conducting covert channels and DDoS flooding methods. New tools exploit a random port number or work through IRC. In addition, packages of smarter tools skillfully mask flooding and requests for legal services and / or put in a high degree of chance.These improvements become more and more difficult for a port-filtering device to divide the attack packets legitimate traffic.

Method 4 – Bandwidth attacks

When you open a DDoS attack, can often be detected as a change in the arithmetic work of art of network transfer. For example, a typical system might consist of a 80 per cent of TCP and a mixture of 20 percent of the UDP and ICMP. A change in the mix of arithmetic may be a sign of a new attack. For example, the Slammer worm led to a burst of UDP packets, while the Welchia worm as a flood of ICMP packets. These tides can be DDoS attacks or so-called zero-day attacks – attacks on vulnerabilities that are developed in secret.

Method 5 – SYN Flood

One of the most common types of DoS attack is the SYN flood. This assault can be launched from one or more computers attacker put out of action for access to a target server. The attack uses the device used to find a TCP connection. Each TCP connection requires the holding of a handshake three way before it can pass data:

• Connection request – the first packet (SYN) sent from the supplicant to the server, preliminary three-way handshake
• Application Acknowledgment – second packet (SYN + ACK) sent from server to applicant
• Full Connection – Third packet (ACK) sent from the supplicant to the server again, handshake the execution of three ways

The attack is a flood of SYN packets with IP addresses unacceptable false origin. The false source address causes the target server to respond to the SYN with a SYN-ACK to a machine origin of the unwary or absent. The target then waits for an ACK packet from source to complete the connection. The ACK never arrives and the table of links of connection with a pending connection request by no means complete. The bank will fill quickly and devour the whole capital can be obtained with invalid requests. Although the number of link entries may vary from one server to another, the tables can be filled with only hundreds or thousands of requests. The result is a denial of service, since, once a table is full, the target server is unable to meet legal requests. The difficulty with SYN attacks is that each application in the separation looks benign. An unacceptable request is very difficult to differentiate from a legal one.

The complexity with SYN assault is that each application is the separation of care. A valid application is very difficult to distinguish from a legal one.

Method 6 – Creating connection flood

A connection is a recognized flood development of SYN flooding attack that uses a number of zombies to commit a DDoS attack on a target. Zombies apparently legitimate connections found on the server end. Using a large number of zombies, each creating a large number of connections to the target, an attacker can make as many connections that the goal is no longer able to believe to requests for legal link. For example, if a thousand zombies make a thousand connections to an application server, the server must run one million open connections. The result is similar to a SYN flood attack in which funds devour server, but is even more difficult to detect.

Method 7 – Flooding connections per second

Connections per second (cps) flood attacks flood servers with a high rate of connections from a source apparently valid. In these attacks, the attacker or the army of zombies attempt to drain server resources for the rapid establishment and tear down TCP connections, perhaps from an application on each link. For example, an attacker use military force zombie often obtaining the home page of a target Web server. The resulting burden makes the server extremely lethargic.

Tags: DDoS, DDoS flood attacks, DDoS green flag, DDoS management system., DDOS Protection, Trojans
Posted in DDoS Attacks | No Comments »

In networks, including Internet, all systems have their limits. One way to make a secure system and survival is to increase your limits or in other words, force. The more resources, the greater the chances of surviving systems in increased demand for their use. For a web service or server, the administrator can increase the number of connections that a web service can accept. This extends the increased burden on the computers and help to assume that computers do not work too close to its limit. The greatest extent of all potentially affected systems – the network and the computers on the network – the better the chances that the network is a DDoS attack.

Safe network of outside surrounded by – View the webcast

Although DOS is not an assault often result in information theft or loss of security of others, which can cost the target person or corporation to an agreement immense time and money. Characteristically, the loss of repair is the inability of a particular network service, such as electronic mail, or to obtain any temporary loss of network connectivity and services. A denial of service attack can also destroy files and programs in computer systems exaggerated. In some cases, DoS attacks have required websites visited by millions of people by the time the target procedure.

General forms of denial of service attacks are:

Distribute Buffer attacks

The most common type of DoS attack is to send more traffic to a network address of the programmers who intended their data buffers could send someone predictable. The offender may be aware that the target system has a defect that can be oppressed or the abuser may try an assault only if it could work. Some of the best known attacks based on the individuality of the shocks of a program or system include:

* Sending emails with attachments with file names 256 characters for Netscape mail program and Microsoft

* Sending extra-large Internet Control Message Protocol (ICMP) (this is also known as the Packet Internet or Inter-Red grouper (ping) of death)

* Distribution to a user’s e-mail program pine communication with a “From” address more than 256 characters

Our Technology

Solution BlockDos

BlockDoS.net offers no short term solution for disposal of DDOS attacks. To prevent DDoS attacks, our best practices take the manufacture of computers and networks more flexible in the face of assault. Many companies have implemented different solutions to survive DDoS attacks. But do we have different approach. Not going to immobilize your site or inactivated at the time of the assault.

Our experience is much easier even stronger. Consider a state of things in one place is exaggerated by the DDoS attack and we must provide the solution.

1. Consider a site attacked by DDoS attack.

2. Simply go to BlockDos.net, fill out the “Under Attack” form and press send.

3. BlockDos team will contact you within 30 minutes of receiving your inquiry.

4. You quickly get a BlockDos computer’s IP address which is what you have to send your domain name.

5. Now BlockDoS will be responsible for almost every attack DDoS Protection or act of hate and examine the petitions in general.

Tags: ddo, DDoS, DDoS tool, denial of service, distributed denial of service attack DDoS, green flag DDoS
Posted in DDoS Attacks | No Comments »

In recent years, with the Trojans, the increasing spread of the virus, the Internet denial of service attack frequency and attack traffic also will be a rapid increase in attack, attack and attack resources, technology continues to mature at the same time, anti-denial of service related to hardware and software products also received considerable development. Today’s IDC market has basically to the lack of effective means of defense of denial of service attacks will not be able to conduct a stable IDC operations position.

However, denial of service a wide range of defense products, the price difference is very large, from several hundred dollars installed on the target server on a single server to tens of thousands of software firewall protection, and even more than a dozen million Fast, Gigabit hardware firewall, including the provision of new and emerging hardware firewall programs and DIY hardware firewall to help customers cost-effective alternative to programs, customers are often at a loss, especially for the DIY hardware firewall used by the relevant technical, defensive ability did not understand that it often at a loss in the choice.

The use of various denial of service attack prevention products and solutions, this paper I will present the mainstream of denial of service attack, the corresponding means of defense and the corresponding analysis of the current defense strategy to attack a variety of means of defense of the merits of the mainstream because of denial of service attack , IDC industry, the invisible barriers to entry been raised a lot. Understanding of the IDC market, investors in making investment in IDC room from time to time have to consider the corresponding denial of service attack defense strategy. The current choice of denial of service attack (DDoS) solutions, roughly divided into:

1, the software firewall solution

2, the hardware firewall solution

3, DIY hardware firewall solution

Section Cost Comparison

For the IDC operations in terms of cost and defensive characteristics of the sub-line, its advantages and disadvantages are as follows:

1, the software firewall solution because it is installed on the server being protected, their defense capabilities and defense area is limited, larger flow in the attack case, on the target server hardware resources to take up serious, and if the number of servers more room, the overall the cost is also high. But the software firewall easy installation, without moving the hardware device, the deployment of very flexible.

2, the hardware firewall is the extensive use of IDC and can play the actual effect of the defense program, the drawback is the cost of investment is too high, small and medium IDC difficult to accept the purchase cost is usually in the Fast products in the 2-4 million, Gigabit in the 6-8 million. If you need high-bandwidth defense, the cluster cost.

3, the emerging DIY hardware firewall program. And a different software firewall, DIY hardware firewall program is installed on the client by preparing their own hardware platform kernel software and hardware firewall in general the same defense capabilities and defense capabilities. As the hardware platform has user-ready, so it can use existing equipment, the total cost of ownership to a minimum. In general, Fast defense costs will be about 1,000 yuan per room per month, Gigabit defense as 1,500 yuan a month.

For the defense capability, the software firewall because of its mode of defects can not be right to establish protection of the entire cabinet or the room, filtering attack packets will also affect the system resources consumed by the normal application of the target system, so no rating here.

Hardware firewalls are all X86 architecture, popular for the hardware firewall is a computer, not specifically dedicated for the network processing chip, and DIY hardware firewall defense the same pattern all along the entire cabinet and the room for protection, and be able to cluster high-volume attack on defense, so we will be focusing our attention on the hardware firewall and DIY hardware firewall.

Defense capability and overall cost of ownership compared:

Cost of Ownership Form from the right point of view, the hardware firewall as a mainstream means of defense, its total cost of ownership is also high, as a compromise of the DIY hardware firewall, which provides a monthly charge for his services a good way to solve the IDC Daoshi facing financial pressures and investment risks and other issues.

II defense function contrast (attack articles)

On defense function, we can not fail to analyze the major domestic Internet denial of service attack tool, today the main use of the Internet means of attack are: SYN-FLOOD: Veteran DDOS attack, using TCP protocol weaknesses initiated three-way handshake attack, is characterized by attacks on the source address is a false address, is not easy to trace the attack source. Attacker in the unit time constructed TCP-SYN packet number of the more effective their attacks on the more remarkable.

A single site SYN attack: the use of three-tier defense against the current cluster switching equipment (such as the Cisco three-layer switch) for port aggregation and load balancing algorithms, when balancing the loopholes in the use of real or virtual into a single source address and the same source port attack. Such attacks in the majority of three-way switching device will be exchanged through a single line, thus weakening the effect of the cluster defense.

Real-situ SYN attack: for some of the software firewall and hardware firewall’s defense theory, specifically addressing the reverse firewall defense style of the attack was launched. The network the last two years the establishment of a puppet machine value chain, enabling real-SYN attack site on the Internet is now becoming more of a attack, an attacker by controlling the puppet of the many machines to send attack packets.

SYN big pack attacks: SYN attacks and general different, SYN packet attack is large by constructing a very large TCP data packets, causing network congestion have been targeted attacks on the way to achieve results, and general SYN is different from attacks initiated by the same flow rate, sending large data packet sender occupy less system resources.

UDP big pack attack: relative to the TCP protocol data packets, the attacking side less system resources need only be able to build a UDP packet, which also vigorously for an attacker to send a UDP packet to provide the conditions for the attack, UDP attacks generally through Large data packets clogging network bandwidth to achieve.

Agent CC attacks: the initial attack by the Chinese to attack the software off the Internet triggered a large number of agents CC attack. Appeared on the Internet through the collection of a large number of free and open proxy server, through the submission of a large number of targeted attacks on these servers destination address of the access request by the proxy server transit attacks. CC to launch attacks on their client agent requires only a common broadband lines, its attack is the real address of address (the proxy server address), once led a number of network operators suffer.

SYN-ACK, PSH-ACK, etc.: for TCP connections initiated by a variety of weaknesses in attack.

Legend DB Attack: Legend of the database-specific attack, but also by the Chinese to attack the first customer to write exploits, the attack is to simulate the legendary customer segment Create account movements, making the legendary server to its knees.

Legends Brush villain attacks: the last off the assembly line through the non-stop and simulated landing, making the legendary server crashes

Tags: attacks, DDoS, DDOS attack, Firewall, Internet, NAT
Posted in DDOS defense | No Comments »

just reconfigured my webserver runing on localhost why?
read under ….
1. what is best practice to have good performance ? – CACHE ! which means if your webserver know where is file(image,song, swf .. etc) located on hard drive and already opened it ones with another customer, why it must be opened second time ? with webserver ? it will make a good lick on performace site if youre runing heavy site with lot of pictures.
2. what is the best program for working on many simple GET/POST/CONNECT requests ? – Squid – caching proxy server runing under Linux and using all power of linux fs for making cache and make it fast
i just made a hibrid combination on my squid ( runing on 80 port) and apache (runing on 127.0.0.1:80).
here is simple config of my squid
http_port 62.75.250.93:80 transparent

icp_port 0

htcp_port 0

hierarchy_stoplist cgi-bin ?

acl QUERY urlpath_regex cgi-bin \?

no_cache deny QUERY

cache_swap_low 64

cache_swap_high 128

maximum_object_size 2048 KB

cache_replacement_policy heap LFUDA

memory_replacement_policy heap GDSF

fqdncache_size 2048

cache_dir ufs /tmp/squid 2000 11 11

cache_access_log /var/log/squid/access.log

cache_log /var/log/squid/cache.log

cache_store_log /dev/null

hosts_file /etc/hosts

dns_nameservers 127.0.0.1

refresh_pattern ^ftp: 1440 20% 10080

refresh_pattern ^gopher: 1440 0% 1440

refresh_pattern . 0 20% 4320

peer_connect_timeout 30 seconds

acl all src 0.0.0.0/0.0.0.0

acl site dst 127.0.0.1/32

acl max_con maxconn 20

http_access deny max_con all

forwarded_for off

http_access deny all !site

http_reply_access deny all !site

icp_access deny all !site

miss_access deny all !site

cache_effective_user proxy

cache_effective_group proxy

visible_hostname Wishmaster

cache_mgr moushegh@nazaretyan.com

always_direct allow all

never_direct deny all
on apache you just need to change Virtual host and LISTEN to 127.0.0.1 (remeber to add your host under localhost at /etc/hosts)
max_con – is a acl that will not allow more then 20 concurrent connections from 1 IP – good method for protecting from http get and syn flood attacks
any questions ? ready to answer on comments or via skype

Tags: attacks, DDoS, DNS, NAT
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In today’s business economy, it is important to have a complete solution that not only compensates for your current operations, but supports the growth ofyour business into the future as well. If the internet is the core of your business, a conventional web hosting solution might not be able to provide the level of control and flexibility you require, at least from a long-term perspective.  Because of this, there just may come a time when you need to strongly consider dedicated hosting.

What is Dedicated Hosting?

To give you a better understanding of dedicated hosting, I’ll first give a quick brief on conventional web hosting, better known as shared hosting. This is the type of environment where you are literally sharing server space and critical resources with other website owners. This could be tens, hundreds or even thousands of people.Dedicated hosting you could say, is the exact option. As the name implies, this is a situation where the entire server is dedicated to your business. With an entire machine at your disposal, you have enough server capacity to host one or multiple websites. Aside from disk space, you also have an abundance of bandwidth along with enough RAM and CPU to make your website perform like a champ. Whereas shared hosting leaves you limited, a dedicated server opens up the floor, providing you with more than enough room to work with.

Benefits of Dedicated Hosting

A dedicated server only makes sense for the large corporation or emerging small to medium-sized business, delivering benefits that simply can’t be provided on other platforms. Below I’ll touch on some of the key benefits of dedicated hosting:

Enhanced Stability and Performance

With dedicated hosting, you are pretty much assured a better performance. In this environment, there are no other sites on the server to leach off your disk space, bandwidth and other essential resources. This means you can enjoy a maximum uptime with a high level of performance your visitors are sure to appreciate.

Extreme Flexibility

One of the biggest attractions of the dedicated server is flexibility. On a shared server you are restricted and typically limited to the resources and tools the web host provides. With dedicated hosting you call the shots, able to incorporate the software applications and technologies you desire. The options are endless, ranging from the control panel and operating system to programming languages and database systems.

Enhanced Security

A dedicated server offers unparalleled security, an attribute that is invaluable these days. This hosting solution gives you the option of implementing the security protocols and mechanisms able to provide your business with the best protection. You can install firewalls, anti-virus solutions, DDoS protection software – the possibilities are endless when it comes to network security. Simply put – adedicated server can be as secure as you make it.

Though more expensive than shared web hosting, dedicated hosting is worth every penny to the business that demands the utmost in control and flexibility. Throw in enhanced stability and security and it becomes a solution your flourishing business just might not be able to do without.

Time for a dedicated server?  Check out the dedicated hosting packages offered byHostGator.  The Gator has dedicated servers available in both Windows and Linux flavors, giving you the best in server hardware and guaranteed network resources.

Tags: DDoS, DDOS Protection, Firewall, Internet, Security
Posted in economy | No Comments »

About once a year, usually around Black Friday, and coinciding with the flu season, mobile security takes center stage. Maybe more so this year, given the ascendency of the smartphone coupled with browsers finally good enough to make the mobile Web a worthwhile experience.

A week or so ago, RIM’s security chief spoke about smartphone viruses and their potential usurpation of the phone as a platform for DDoS attacks. This coupled with a critical mass of open operating system devices now make the mobile phone a tempting target. We’ve been talking about mobile viruses for half a decade. This time, the threat is real.

In the same way, these virtual petri dishes are black holes into which corporate IT has no visibility. Sybase (News – Alert) recently commissioned a study of European IT executives to evaluate the magnitude of this potential exposure. The findings are downright scary, and make one wonder about the level of attention IT departments have devoted to addressing the security requirements of their mobile workers. 66 percent stated that they have no visibility into the sensitivity of data stored on mobile devices, 38 percent have no visibility into applications, and only 15 percent are confident in their ability to contain exposure if the phone is lost or stolen. In my book, considering the magnitude of exposure, this lack of security should have these IT managers camped out at the corner unemployment office (or in a more draconian mood, at the local lockup).

These metrics align with the percentage of employee-liable phones used in the enterprise, now approaching 50 percent as reported by Yankee Group (News – Alert). I won’t go into the not unexpected conclusion from the presentation about the iPhone’s readiness (or lack thereof) for enterprise use.

So what’s an operator, an enterprise, or a smartphone subscriber to do?

Needless to say, once the phone is lost or infected, it is too late. An effective over-the-air security solution, deployed as part of an overall care architecture by the operator, for employee liable devices, or by the enterprise for corporate liable devices, is the foundation. This solution will be responsible for pushing firmware or software updates to the phone, ensuring that discovered vulnerabilities are quickly patched. Extensions to widely deployed FOTA architectures meet this requirement. In some cases, the operator may mandate anti-virus software, pushed to the device (or pre-loaded at time of manufacture) by the same update conduit. If the phone is lost or stolen, the management client of the device should be capable of locking the phone and/or wiping all data.

In parallel to the operator’s care platform, user education is essential. Password protection is a given, as well as the need for backup. However, it is almost criminal that employees using their smartphone for work purposes ignore this first line of defense. And, if the user wants that which happened in Vegas to stay in Vegas, he or she can’t wait a week to report a lost phone, hoping that it will miraculously re-appear. A phone locked after compromising photos or a corporate roadmap have made it to the Internet is not nearly as good as a phone locked before. Unlocking is as easy as making a call, nothing is lost if/when the “lost” device is once again found, as an over-the-air unlock is just as fast and easy as a lock.

The real area for improvement is in the area of IT control over employee liable devices. At Interop (News – Alert) in NYC, I participated in a panel addressing just this concern. We exchanged best practices, painting a picture of what should be, though not what necessarily currently exists. Our joint observation was that IT departments need to understand that mobile devices fall into a continuum. On one extreme, there are corporate liable Blackberries or mission-specific platforms upon which you can enforce restrictive, but safe, policies (on device encryption, strong passwords etc.). There will always be a place for this. On the other are the unwashed masses with a variety of personal devices with no policy or control enforced or deployed.

But the middle? Devices with reasonable VPN or ActiveSync support with on device encryption like Windows Mobile or the iPhone (News – Alert) 3GS? Good call, it is reasonable to expect encryption on the device, something that is supported by ActiveSync policies. However, some handsets, like earlier iPhones, will report back to the server that they support on-device encryption, when they don’t.

Convenient, but dangerous because you think that you are more secure than you are. Then there are devices which will fetch your mail off the Exchange server (if the server is configured to allow low security devices), but make no claim of any sort of ActiveSync on device encryption, such as recent Android devices like the Motorola (News – Alert) Droid or the Palm Pre. Even this is not cut and dried. For example, Touchdown, an ActiveSync corporate email app, runs on Android devices but reports support of on device encryption (at least as of late November 2009) even if that capability does not yet exist. The situation is complex.

The level of visibility into these devices, and IT’s willingness (and/or ability) to lock down an employee owned device , will inform what corporate resources are made available. This in effect addresses the concerns raised by the Sybase study. No visibility. No access to ERP or Exchange.

And if the enterprise does deploy security along the lines of Credant or Good, they’ve got to make doubly sure that there is no leakage of content (i.e., contacts or photos) from the ‘public’ to the ‘enterprise’ side of the device, certifying conformance on each and every OS platform and hardware family introduced. Here, the onus is on the IT department.

As I got onto the plane in JFK, I looked around at a rather unhealthy cross-section of the traveling population (compared to SFO), wondering if it was just my phone that I needed to protect…

Tags: attacks, DDoS, DDOS attack, DDoS Attacks, Internet, Security, vulnerabilities
Posted in Mobile Security | No Comments »

If you have been trying to deliver many email messages or support your own email domain, you know how hard and costly it can become.

Sending emails in large quantities is not easy. In addition to managing your subscribers lists correctly, you need to make sure that most of your emails reach their destination.

If you are working with a shared email server, you can easily be banned for somebody else’s mistake, because an entire IP or an IP range is banned taking everybody who uses this IP with it.

If you have your own email server to send your email, it is private to you and nobody else. Our SMTP server has tons of built in features to deliver email and protect you from spammers.

We support multiple RBL servers to filter out those spammers and we can white list or black list entire IP ranges with sophisticated checking, so that only those who are authorized to relay messages will be able to do so.

Email Delivery Server is an easy-to-use yet pwoerful utility that integrates everything you need for mass miling. It featuresparametrized mailing lists, where you can import very large list of your subscribers, even with all their additional fields such as Name, address and so on and then write one email message with parameters.

Our server substitutes all parameters with correct values on the fly. That is not all, our server is a complete sending and receiving solution, so in addition to being able to relay messages, it is also able to receive them for any number of domains and any number of users that you manage.

We have built in POP3 protocol and allow all our users to get their email from our server directly. Each user’s settings are configurable and you can even set each user’s mailbox size and other parameters individually.

Here are some key features of “Email Delivery Server”:

independence from email service providers (ESP);
support of SMTP and POP3 protocols;
message queue and mailbox encryption;
incoming SPAM filtering and sender blocking;
SSL/TLS encryption for SMTP and POP3;
DDoS attack prevention and firewall features;
email message box limiting on a per-user basis;
e-campaign testing mode and final message preview;
large volume handling by using scalability features;
parametrized distribution and mailing list support.

What’s New in This Release: [ read full changelog ]

Activation bug is now fixed.

Tags: DDoS, DDOS attack, Firewall, NAT, Spam, spammer
Posted in Email Delivery | No Comments »

Network brings us a convenient, but also brings a series of problems. Viruses and malware attacks is very troublesome. Unless you pull string, otherwise will suffer from the aspects of the network, especially the threat of distributed denial of service attack, people can retreat DDos refund. We cannot prevent the attack, we can do is how to reduce losses, utmost ground protects the interests of individual and enterprise network.
A DDoS attack typically divided into three stages. First is the target confirmed: hackers will lock an IP address on the Internet. The IP address of the enterprise may represent a Web server, DNS server, Internet gateway, etc. Select the target of the attack, or for money purposes is pure pastime. Then is preparation: in this stage, the hacker intrusion Internet will have good protection system of the computer. In these computers after implantation target the necessary tools. Finally is launched actual attack stages: hackers will be sent to all orders against invasion by the computer, using the computer and ordered in advance of the implant to attack tool sends a packet that attack target unable to handle large amounts of data or bandwidth occupied. Serious word will affect the DNS, cause the whole network have paralyzed.
Of course not, facing DDoS unchecked. We can take corresponding measures to minimize the effects of such attacks.
Intrusion filter is a simple network should be implemented and all the security strategy. In your network, should establish a routing statement, all data to source IP address for this marked the packet. Although this way doesn’t prevent DDoS attack, but it can prevent DDoS attack reflex.
But many large ISP seem because all sorts of reasons refused to realize invasion of filter, so we need other ways to reduce the impact of DDoS. At present the most effective method is one of the track. By this way, the first should be determined by current is external DDoS attack, not from the connection or routing problem. Then all the edge router as soon as possible in the external interface configuration, reject all the data flow DDoS attack target. In addition, even in these edge router port configuration, will all invalid or unable to locate data source IP packets.
Such doing can decrease the impact DDos, early recovery network operation. DDoS attack, but we can prevent hard by the corresponding measures to reduce the attack in the network. We can’t predict how fierce flooding, all we can do is to build high dam, We couldn’t psych out hackers mood, so we must make full preparations.

Tags: DDoS, DDOS attack, DDoS Attacks, DNS, Internet, Security
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CYBERJAYA: The International Multilateral Partnership Against Cyber Threats (Impact) believes that what the world needs now is more cybersecurity experts.

Although it may sound less whimsical than the famous song, in reality, Impact said cyberspace is ever changing and the number of threats is growing everyday.

Threats are also getting more sophisticated and targeted compared to 10 years ago, said Philip Victor, Impact centre for policy and international cooperation, head of communications and outreach.

Aside from attackers being driven by financial gains from attacking global systems, Philip said that terrorists are also turning to the Internet to launch their attacks or execute their plans.

One of the more popular example of the realities of a cyberattack is the 2007 cyberwar in Estonia where attackers launched distributed denial of service (DDoS) attacks on Estonian websites including the Estonian parliament, banks, ministries and newspapers, he said.

Although the attacks may seem low-tech, a DDoS attack can disrupt everyday activities that require Internet connectivity.

“Unfortunately, there’s a lack of global cooperation to fight this due to the shortage of information security professionals,” Philip said.

In Malaysia, he said the information security professional to population ratio is 1:20,000.

“We believe the number of security professionals is growing but as the Internet population increases, we will need more,” he said.

Working towards this effort, Impact has alligned with information security certification company ISC2 to provide information security training to Impact partner countries.

“This is in line with our mandate of operationalising the Global Cybersecurity Agenda (GCA)in escalating cybersecurity capabilities to better defend againts cyberthreats,” said Datuk Mohd Noor Amin, chairman of the Impact management board.

The GCA is the United Nation’s International Telecommunication Union’s framework to enhance confidence and cybersecurity in the information society.

Through this agreement, ISC2’s certification courses such as the Certified Information Systems Security Professional, Systems Security Certified Practitioner and the Certified Secure Software Lifecycle professional will be offered in Impact’s partner countries to enhance the organisation’s position in providing a holistic approach to public sector cybersecurity.

Impact will kick off the first course, the Systems Security Certified course, in Africa in the first quarter of next year.

“Africa is a continent with growing Internet users so its logical to train security profesionals there to ensure its cyberspace is safe,” Philip said.

Impact and ISC2 are expecting 100,000 security professionals to be trained through this partnership.

“We will be working with governments to realise this goal in order to provide enough security professionals for the world,” Philip said.

W. Hord Tipton, executive director for ISC2 said the organisation is happy to work with Impact.

“We jointly believe that only by professional development can we enable the community to protect against cyberthreats and we look forward to educating more individuals,” he said.

Tags: attacks, DDoS, DDOS attack, Internet, NAT, Security
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