mail rejects, deleted & queue in periodic.conf

April 25, 2008 · by · in Systems

By default, after exim successfully configured and run, it sends out Megabytes of mail queue to the root mailbox. It can be annoying when using a slow download line. e.g. PSTN & ISDN dialup, 3G internet access & etc. To…

split – but no destination parameter to specify

April 22, 2008 · by · in Open Source, Systems

first : cd /destination/directory second : split /source/directory/big-huge-file prefix-to-apply-onto-splited-files Voila !!! (use the parameter -b to specify the size of splited files in BYTES, NOT kb, mb or gb)

cron & time zone

April 18, 2008 · by · in Open Source, Systems

after changing time zone (tzsetup), restart cron (/etc/rc.d/cron restart) to let it know the changes or else the cron jobs will use the previous time zone.

convert epoch using date command

April 13, 2008 · by · in Open Source, Systems

date -d ‘<Unix epoch> <epoch date> sec’ e.g. date -d ‘1970-01-01 988822888 sec’ would dated “Wed May 2 17:31:28 MYT 2001” 20080430 : get a particular date in epoch, e.g. date -d ‘Apr 30 2008 00:00:00’ ‘+%s’

Forget / forgot / cannot remember root password

April 8, 2008 · by · in Open Source, Systems

On a FreeBSD server 1. reboot server 2. choose to boot into single user mode 3. mount -o rw <root partition> e.g. mount -o rw / 4. passwd <root account> e.g. passwd root 5. mount -o ro <root partition> e.g….