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- Sockstress: A new and effective DoS attack
- Denial of Service attacks aren't new, yet persist in being effective methods of denying access to resources on the Internet. Now meet Sockstress, the newest version of DoS attacks, and heralded as potentially the most devastating of the bunch. by Michael Kassner
- Tags: Denial Of Service, TCP, Attack, Fyodor, Target Port, Attacker, Tcp/Ip, Security, Networking, Michael Kassner
- Blog posts 2008-10-05
Additional Resources
- Debug SOAP apps with Apache TCP Tunnel/Monitor
- One of the most common tasks during application development is debugging. With new tools and new technologies, debugging is essential to understanding what’s happening and why your application is behaving like expected. To this end, the Apache Group distributes a nice little application as part of Apache SOAP, the TCP...
- Tags: SOAP, Web services, TCP/IP, Apache Software Foundation, Brian Schaffner, TCP Tunnel/Monitor application, Simple Object Access Protocol, SOAP location, soaplocation, TCP Tunnel/Monitor, monitor, TCP
- Technical articles 2003-01-30
- Citrix PS on W2K Server running TS, problem mapping drives
- Win 2000 Server SP4, Terminal ServicesCitrix Server Presentation Server 4.0 Client for MS networks Client for Netware 4.91 SP3 IP preferred protocol NWLink IPX/SPX/NetBIOS compatible TCP/IP, static IP Enable NetBIOS over TCP/IP File and Print sharing enabledThere's a firewall that sits between this Citrix server and...
- Tags: Servers, Microsoft Windows 2000, abuto, server, Citrix Systems Inc., Citrix Server, target server
- Discussion threads 2007-04-27
- Use port knocking for a more secure method of opening ports
- Every open port on a firewall or a router is a security risk. That's why a technique called "port knocking" can be valuable. Port knocking is a method of allowing access to firewalled services given a preconfigured "knock." The knock consists of a sequence of access attempts to closed ports...
- Tags: security, Thomas Nooning CCNA, CCDA
- Technical articles 2004-12-15
- TechRepublic members offer tips on removing a broken pin from a PS/2 port
- Bent or broken pins in peripheral connectors are infrequent hazards associated with maintaining PCs, but they can create big headaches when they do occur. If you're unprepared for such problems, they can also be difficult to repair.In a posting in our Technical Q&A forums,Choywg reported that a pin on a...
- Tags: Choywg, pin, PS/2, TheChas, Wax Tadpole Writing Services
- Technical articles 2003-10-09
- Using TCP/IP troubleshooting tools
- TCP/IP is quickly becoming the protocol of choice on today's networks. In this Daily Drill Down, Ron Nutter examines some TCP/IP troubleshooting tools that deserve a place in your bag of tricks.Since TCP/IP is quickly becoming the protocol of choice on today’s networks (both from a LAN and a WAN...
- Tags: PRODUCTIVITY, Network technology, NETWORKING, Ron Nutter, NeoTrace, tool, NetScanTools 4.0, router, TCP/IP
- Technical articles 2000-06-15
- Massive UDP traffic on port 62997
- Hi,During recent days I recieved a massive increase in UDP traffi con port 62997. Interestingly all the traffic is directed to single destination machine whose IP address is x.x.x.221. All of the traffic has 110 byte payload. The traffic is nomraly from small number of sources all from china and...
- Tags: Internet Relay Chat (IRC), NETWORKING, a1 3c 01, payload, destination address
- Discussion threads 2009-06-29
- disable or lock usb port
- hi to all,Is there anyone who can help me, how to disable or lock my usb port in my computer, aside from disabling in Device Manager > Universal Serial Bus Controller..???thnks guysWell depending on what you haveYou could disable the USB Ports in BIOS.Other than asking how to disable the...
- Tags: USB port, BIOS, Well Depending, server, advertisement
- Discussion threads 2008-06-02
- NAT Port Forwarding: Connection Refused
- Hi!Here is small suggestion in configuring NAT Port Forwarding:If you place "space caracter" between two words in Comment box, port will NOT be forwarded anymore.Private IP Type Port Comment-----------------------------------------------------192.168.0.100 TCP 5900 Ultra_VNC_(will_do)192.168.0.100 TCP 5900 Ultra VNC will NOTVery strange behavior in many routers. There is usualy no warning about this.I...
- Tags: deepspace@..., Hi! Here, nat, port forwarding, router, firewall, connection, refused, Network Address Translation, networking
- Discussion threads 2007-03-07
- Understanding the Cisco PIX firewall solution
- If you work in an enterprise-level network environment, you know that reliable equipment is essential for handling your security needs. Lance Cockcroft explains why the Cisco PIX could be the solution you've been looking for.In today's corporate enterprise networks, traffic is load balanced between many standalone PC or UNIX-based firewalls,...
- Tags: Firewalls, Network security, TCP/IP, SECURITY, NETWORKING, PIX Firewall, Lance Cockcroft, Cisco Systems Inc., firewall, PIX, network, Cisco PIX Firewall, TCP
- Technical articles 2001-05-15
- Get IT Done: Instant messaging is the next hacker target
- How instant messaging applications are vulnerable to attack by hackersBy Robert VamosiYou'd better keep an eye on your handy instant messaging app, according to security software and advisory firm Internet Security Systems ISS. Why? Now that companies are getting better at stopping e-mail viruses, instant messengers are the next obvious...
- Tags: Instant messaging, Get IT Done, ZDNet , instant messenger, IM, Dan Ingevaldson, America Online Inc., AOL Instant Messenger, Yahoo IM, ICQ, Internet Security Systems Inc., Yahoo! Inc.
- Technical articles 2002-07-05
- Attackers target Veritas security hole
- I was targeted through VERITASListen people the research I uncovered as being a victim illuminated to me that hole exploitations are now specific targets of INTERNET SECURITY COMPANIES that are looking to become corporates standards in the revolution of certain rights laws and others that acttually hire or something people...
- Tags: SECURITY, Internet
- Discussion threads 2005-07-01
- Phishers target Yahoo Messenger
- Yahoo confirmed Thursday that its service, Yahoo Messenger, was being targeted by a scam. Attackers are sending members a message--seemingly from someone on their friends list--that contains a link to a fake Web site. This fake site looks like an official Yahoo site and asks the user to log in...
- Tags: hacker, security, Sonja Thompson, Yahoo! Inc.
- Discussion threads 2005-03-25
- Allow RConsoleJ access to IPX-based NetWare servers with RConprxy
- RConsoleJ is a great remote administration tool for NetWare servers, but it only works with servers that run TCP/IP. How do you use it on your IPX-only NetWare servers? John Sheesley tells you how.RConsoleJ, which first appeared in NetWare 5.0, offers some advantages for remote control and access of NetWare...
- Tags: Servers, TCP/IP, Operating systems, John Sheesley, server, RConsoleJ, NetWare Server, IPX, Novell NetWare, RCONPRXY.NLM
- Technical articles 2001-09-21
- Lock IT Down: Sapphire/Slammer worm attacks SQL Server and the Internet
- The economy of South Korea was brought to a screeching halt on the morning of Jan. 25, and the rest of the Internet community suffered collateral damage as a new worm launched a massive attack against a well-known and presumably long-since-patched Microsoft SQL Server vulnerability. Known by various names, including...
- Tags: attack, information technology, Internet, John McCormick, Microsoft Corp., Microsoft Data Engine, Microsoft SQL Server, server, worm attack
- Technical articles 2003-01-28
- Sasser.a and Sasser.b prevention and cure
- By Robert Vamosi(May 3, 2004)Sasser and its variations are network-aware worms that do not require e-mail or user interaction to spread. The worms use a bootstrap effect by infecting new machines first, then downloading the full code from a previously infected machine. Sasser (w32.sasser.a) and Sasser.b (w32.sasser.b) are both 15,872...
- Tags: Sasser worm, Microsoft Windows
- Technical articles 2004-05-04
- Make your home PCs accessible anywhere with Dynamic DNS for free
- This article is also available as a PDF download.You may have a home network with a permanent-on broadband connection thatallows you to access the outside world anytime 24/7, but how do you go the otherdirection and access your home network from the public Internet? This might be possible if you...
- Tags: Broadband Internet, Network technology, TELECOMMUNICATIONS, PC, home PC, George Ou, dynamic DNS, bandwidth, kbp, broadband, password, Internet
- Technical articles 2007-04-10
- Linux 101: Establish more effective security capabilities with OpenSSH
- LongtimeLinux admins know that SSH,the "Secure Shell" protocol, is one of themost handy and potentially critical utilities in their software toolbox. Usingmultiple terminal emulators in an X Windows environment on a workstation, orvia the Screen utility, a sysadmin for Linux or otherUnix-based OS servers can manage several systems simultaneously with...
- Tags: Chad Perrin, Linux, OpenSSH, security, SSH
- Technical articles 2006-07-21
- Configuring the Cisco 851W or 871W: Standard IOS
- The Cisco 851W router is a relatively low cost multipurposedevice ($292 is the lowestprice), which can support virtual wireless LANs separated by firewalls.Although the Cisco 871W can do more things, it is inthe $500 to $700 range, depending on the software feature set you want--andthat may be a little too...
- Tags: 871W, Cisco 851W, Cisco 871W, Cisco Systems Inc., George Ou, LAN, network, Port F4, SSID, wireless, WLAN
- Technical articles 2006-09-05
- Get IT Done: Troubleshoot server ports in Windows with Portqry.exe
- Many IT pros are quite proficient with Telnet and use that tool adroitly in testing and troubleshooting ports and connectivity. However, Telnet has its limitations for port testing. A major limitation is the inability of Telnet to determine whether the port is being filtered. Plus, Telnet is unable to test...
- Tags: Get IT Done, Jeremy Smith MCSE, CNE, Network+, Microsoft Windows, Portqry.exe, server, TCP, Telnet
- Technical articles 2003-04-29
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