FeedIf you want to run sudo from any part of a cron job make sure you comment out the “Defaults requiretty” from /etc/sudoers. Bit me twice now so hopefully I’ll remember next time. Ed: Apologies to those who have read this before but I had to restore from backup and my last post wasn’t in [...]
Articles in category 'linux'
A few things all of us are probably interested in: SSD Write Amplification: http://www.extremetech.com/article2/0,2845,2329594,00.asp Journaling and write performance in ext4: http://thunk.org/tytso/blog/2009/03/01/ssds-journaling-and-noatimerelatime/ The bottom-line as far as wear and tear: vfat is basically the same as a journaled FS from a wear-leveling standpoint, both are worst case. Thankfully vfat, being the worst case, forced the manufacturers [...]
My favorite BASH shell completion of all time is hostname completion for all of my favorite commands: SSH_COMPLETE=( $(cat ~/.ssh/known_hosts | \ cut -f 1 -d ‘ ‘ | \ sed -e s/,.*//g | \ uniq | \ egrep -v [0123456789]) ) complete -o default -W “${SSH_COMPLETE[*]}” ssh scp sftp rsync nmap traceroute ping nslookup [...]
I was trying to connect to RHN from Yum/up2date in Red Hat Enterprise Linux 5. I kept getting fatal invalid SSL cert errors. The strange part – out of all of the machines I tested it was only occuring on a single RHEL 5 laptop. The really strange part – it was happening on the [...]
Ran into a problem with Exchange. I created a server-side rule to place spam messages in a folder that didn’t exist. All spam was instead going to the root folder, the folder above my inbox. Well if you use Entourage to access Exchange you will not be able to access this folder. If you go [...]
It’s been three years since we upgraded the hardware that hosts our various sites. I contacted my provider (Crucial Paradigm) and got some competitive offers. Stefan, my friend in Berlin that I split the server with, and I agreed on the following specs: Athlon 64 x2 4000 (2 cores @ 2.1GHz, 512K L2 each) 4GB [...]
I’ve been thinking of researching the PS3 hypervisor. Mainly from a security perspective but this led me to thinking. You know what would be cool? Micro-partioning a PS3. Obviously IBM has experience with micro-partitioning on the PPC and the Linux distros are already tried and tested in these exact environments. You could use the system [...]