The Linksys WRT54GL and DD-WRT firmware

Monday, May 5th, 2008

I’ve had a couple of small wireless projects lately and have really been having a great time playing around with the Linksys-Cisco WRT54GL Wireless-G Broadband Router and one of the many GREAT 3rd party firmwares dd-wrt. I know, for a couple years I’ve meant to get a hold of one of these little linksys boxes [...]

Zeroshell Livecd – providing main network services

Wednesday, February 21st, 2007 is an interesting bundle of linux designed to be an out of the box network service swiss army knife of sorts. Here are the network services that it provides…. Kerberos 5 authentication, LDAP, NIS, Radius authentication, x509 certificate authority, unix and windows compatible active directory services, router, implements bridging and vlan protocols, full radius [...]

Strange net problems with a Netgear FS608 switch

Tuesday, August 22nd, 2006

This was weird and now that the switch is replaced I haven’t been able to duplicate it, but let me explain. There was a netgear fs608 (8 port unmanaged) switch plugged into a linksys router (model number not noted.) The cable was straight (although the fs608 has support for link through straight or crossover cables.) [...]

I’ve NEVER liked UPNP…. now I have another reason….

Thursday, May 18th, 2006

I remember the first Windows XP vulnerability was a Upnp vulnerability. I have made one of my first visits on any new XP system a visit to to disable it on an XP workstation. But, it’s the great thing – makes life so much easier for setting up network devices. “You just don’t like [...]

What a week….

Wednesday, February 8th, 2006

I think it’s time to pass along a long story of what’s gone on over the last week or so here and some of the reasons there hasn’t been anything posted. Generally, I would say that work has been busy, but something happened last week that went a bit beyond the day to day and [...]

Network Security – how should an open wireless access point be run beside a safe network?

Monday, January 30th, 2006

So, let’s say we want to have an open wireless access point for some reason. (Maybe offering it to guests if you’re a business?) There are certainly a lot of BAD ways to give open wireless access. As we’ve seen in this series so far, it could be quite easy to hijack all connections in [...]

Network Security – Defenses against arp spoofing

Monday, January 30th, 2006

So, we’ve spent a couple articles talking about arp spoofing. It sounds really bad, it’s a frighteningly easy way to do a “mitm” or man in the middle attack and anyone using arp spoofing could capture ALL network traffic including passwords. There’s got to be an easy fix right? Um…. well. This is not something [...]

Linksys changing WRT54G wireless router

Thursday, December 1st, 2005

Linux devices has a story on the Linksys WRT54G wireless routers. The WRT54G has been known for quite a while to be running linux and a community has sprouted up with customized software to add many neat features to the access points. However, Linksys is moving to VxWorks as the operating system for the routers [...]

Linux on a Linksys wireless router

Thursday, August 18th, 2005

This is one of those projects I’ve been tempted to undertake for some time… Newsforge has an article on Linux on the Linksys wireless WRT54G and WRT54GS routers. The distribution designed for it is openwrt which is an embedded linux flavor.    Send article as PDF   

Bad week for Cisco, security headaches

Wednesday, August 3rd, 2005

For starters, there was this advisory last week in response to a planned talk at a hacker convention on the possibility of a cisco router ipv6 exploit. The advisory detailed a LOCAL exploit and not the remote exploit that the talk was centered around. There was legal action against the speaker and materials detailing it [...]


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