This is a very rough guide on how it can be done on an old Debian release, like Jessie (debian 8). There might be something missing, or it might break some stuff for you. Please read everything before starting, you might not wanna do some things or they might not be ok for a production […]
linux
linux related, linux admin
Remote reboot / keepalive using watchdog
I needed something that can do the following: – automatically reboot if another server goes missing/offline – reboot if instructed by another server – it must be failproof and work in all conditions (bad hardware, bad memory, lots of errors) Why? Because I want more control, more automation and don’t want to depend on datacenter […]
1 Currently unreadable (pending) sectors
Woke up one morning with an awesome message in the server logs: smartd[18500]: Device: /dev/sdd [SAT], 1 Currently unreadable (pending) sectors Any hard disk error is a nightmare. It’s even more interesting when you have no ideea what happened.
Postfix + Dovecot
I have just moved to a new server last week, so I started fresh and decided to go ahead with a new mail server configuration. On the old server I was using qmail+vpopmail+courier. qmail – smtp, pop3 server vpopmail – provides mailbox & virtual domain management courier – for the imap server part I got […]