I have a samba fileserver which has been happily running for a couple of years with identical config but on different versions of samba, and on Fedora and CentOS. The latest incarnation was running samba 3.2.11. But the other day, my samba package was upgraded to 3.4.1 Samba shares on the server immediately stopped working […]Read more "Upgrading samba breaks it"
This is a +1 for Easy Firewall Generator for iptables. Of course any self-respecting sysadmin should be able to set up iptables, but sometimes starting off can be tricky. So I use the this website, which lets you define the basics using a handful of checkboxes, and it generates a script that configures your computer’s […]Read more "An easy way to generate an iptables config"
I decided that I need to sort out the way I do my personal calendaring. Currently I only use my phone’s built-in calendar. I nearly always have my phone with me, but it’s a bit of a pain to enter stuff on when I’m sat at a computer anyway, and carrying all that information solely […]Read more "Google calendar"
This a short and simple guide, explaining how to set up remote monitoring of Linux hosts using NRPE in Nagios. The procedure is simple, but having searched for information on this earlier today I didn’t find a straightforward all-inclusive guide, so I’ve written my own. These instructions were written with Nagios 3.0.6, and they assume […]Read more "Setting up NRPE remote Linux monitoring with Nagios"
I’ve just written a module for Nagios that will determine if the currently running kernel is the latest kernel available on the system. It will not tell you if there is a newer kernel in a yum repository or similar. The main gotcha is that you need an RPM-based system for my script to work, […]Read more "Checking for the latest kernel with Nagios"
Sometimes you need to change the log verbosity of wpa_supplicant for debugging purposes. First check which log verbosity you are currently running with. ps -ef | grep wpa_supplicant | grep -v grep -d represents verbose -dd represents extra verbose To change the log verbosity, edit /usr/share/dbus-1/system-services/fi.epitest.hostap.WPASupplicant.service and add -d or -dd as appropriate. Example: [D-BUS […]Read more "Changing the verbosity of wpa_supplicant on Ubuntu"
Recently, a friend asked me if I could copy her home videos from a miniDV tape onto a DVD. I said sure, OK, and if she lent me her camcorder I’d be able to get it done. I’ve never actually used miniDV before, and I’ve only ever tried to process video on Linux a handful […]Read more "DV editing on Fedora"