Cisco IOS – Logging to a non standard syslog port
Recently I have been setting up a new logging system, but have needed to log to a different port than the usual 514 (UDP). This is relatively easy depending on the version of IOS running. The following...
View ArticleMultiple DNS suffixes in Windows
Working in multiple domains can be a hassel, but there are a few things to make life easier. I have needed to do this recently to allow quicker access to two standard domains containing users, servers...
View ArticleWindows – Finding which process is bound to a port
Sometimes I have the issue that a port is already bound to a port, stopping another process using that port. Other times I just plainly needed to find which process was using a particular port. Usually...
View ArticlePath MTU Discovery
MTU Path Discovery - Fragment Error Checking the MTU on a path is a very simple and handy thing to know (but I still seem to forget the command line options). The MTU can be manually discovered through...
View ArticleCisco SG 200-08 Trunking
I've had a little struggle getting a Cisco SG 200-08 trunking with several vlans to a Cisco 3560G switch. I'll quickly explain what was throwing me off for speed readers, but I will go in depth later...
View ArticleUsing minicom to interface with serial devices on Linux
I came across a problem recently, I needed to configure a Cisco switch and all I had was a Ubuntu machine that had a serial port. Since then I've got a Cisco 2511, with octal cable, which is very handy...
View ArticleCisco 2960s Ip Source Guard Port-Security Issue
IP Source Guard Yesterday I had an issue where ip source guard with mac-address filtering was applied across a range of switches including 3560g's and 2960s'. The majority of switches functioned fine...
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