TCP Hijacking Understanding and preventing TCP attacks
Sep 01, 2005It is quite easy to take a TCP connection down using a RST attack, and this risk increases with applications that need long-term connections, such as VPNs, DNS zone transfers, and BGP. We’ll describe how a TCP attack can happen, and we’ll show you some simple techniques for protecting your network.
more »GPRS in Linux Mobile Internet access with GPRS
Sep 01, 2005Permanent mobile Internet access might sound like a nightmare for some, but for others it is a dream come true. All you need is Linux and a fairly recent mobile phone.
more »Charly's Column The Sysadmin’s Daily Grind: HTPDate
Aug 01, 2005Despite the cyclical disruptions so typical of LUG meetings, our intrepid columnist, Charly, reveals how he set the system time in spite of a blocked NTP port.
more »Socks 5 Examining the generic Socks version 5 proxy protocol
Jul 01, 2005Socks is a universal proxy protocol for TCP and UDP that allows internal hosts to securely pass the firewall and authenticates users. This article describes the latest version of the Socks proxy protocol and shows how to implement it.
more »ARP Spoofing ARP spoofing and poisoning
Jul 01, 2005Any user on a LAN can sniff and manipulate local traffic. ARP spoofing and poisoning techniques give an attacker an easy way in.
more »Hotspotter Attacks on wireless clients
Jul 01, 2005Security experts are always concerned with WLAN access points, but they sometimes forget that the client is also open to attack. Public hotspots make it quite easy for attackers to hijack connections, as the Hotspotter tool demonstrates.
more »Security Intro Knowing the ways of the enemy
Jul 01, 2005more »
Admin Workshop Identd Insider Tips: Identd with Linux-based Servers
Apr 01, 2005In last month’s issue of Admin Workshop, we introduced tools that help admins get services up and running. This month, we will show how you can use the Ident protocol to associate a user name with a TCP connection.
more »
Tag Cloud
News
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Google and NASA Partner in Quantum Computing Project
Vendor D-Wave scores big with a sale to NASA's Quantum Intelligence Lab.
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Mageia Project Announces Mageia 3 Linux
Many package updates and Steam integration highlight the latest from the Mandriva-based community Linux.
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FSF Outs the World Wide Web Consortium over DRM Proposal
Richard Stallman calls for the W3C to remain independent of vendor interests.
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Debian 7.0 Debuts
The new release supports nine architectures, 73 human languages, and zero non-Free components.
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Alpha Version of Fedora 19 Released
Fedora developers release the first alpha version of Fedora 19, known as Schrödinger’s Cat, for general testing. The final release is expected in July 2013.
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ack 2.0 Released
ack is a grep-like, command-line tool that has been optimized for programmers to search large trees of source code.
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SUSE Studio 1.3 Released
New features in SUSE Studio 1.3 include enhanced cloud integration, VM platform support, and lifecycle management.
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Xen To Become Linux Foundation Collaborative Project
The Linux Foundation recently announced that the Xen Project is becoming a Linux Foundation Collaborative Project.
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RunRev Releases Open Source Version of LiveCode
Open source version of LiveCode is now available for developing apps, games, and utilities for all major platforms.
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OpenDaylight Project Formed
OpenDaylight is an open source software-defined networking project committed to furthering adoption of SDN and accelerating innovation in a vendor-neutral and open environment.