cisco IOS equivalent Ctrl-w or Control-w …

May 8, 2008 · by · in Systems

ctrl-n or Control-n

ssh dynamic port tunnelling

April 29, 2008 · by · in Systems

useful when using insecure links with a ssh server you can access : ssh -ND<port on localhost> username@remote-ssh-server e.g. ssh -ND8080 myusername@192.168.1.1 *** when using firefox, only specify “localhost” in SOCKS Host, port “8080” & choose “SOCKS 5” in “connection…

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.