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Showing posts from May, 2011

[Level 1] Linux simulator on web.

Petty cool stuff. Linux simulator on web. Please refer to the foll http://bellard.org/jslinux Wish this helps. regards, Stanley Huang

[Level 2] How to check the resource limitation of specific process in Ubuntu.

How to check the resource limitation of specific process in Ubuntu. You can follow the below steps: # ps -ef | grep nfsd4 root 1098 2 0 May13 ? 00:00:00 [nfsd4] root 18674 18607 0 20:32 pts/15 00:00:00 grep --color=auto nfsd4 # cat /proc/1098/limits Limit Soft Limit Hard Limit Units Max cpu time unlimited unlimited seconds Max file size unlimited unlimited bytes Max data size unlimited unlimited bytes Max stack size 10485760 unlimited bytes Max core file size 0 unlimited bytes Max resident set unlimited unlimited bytes Max processes 47490 47490 processes Max open files 1024 1024 files Max locked m

[Level 2] How to connect wireless ap by command in Ubuntu.

How to connect wireless ap by command in Ubuntu? You can use two commands, 'iwlist', 'iwconfig'. # iwlist --help Usage: iwlist [interface] scanning [essid NNN] [last] [interface] frequency [interface] channel [interface] bitrate [interface] rate [interface] encryption [interface] keys [interface] power [interface] txpower [interface] retry [interface] ap [interface] accesspoints [interface] peers [interface] event [interface] auth [interface] wpakeys [interface] genie [interface] modulation # iwlist wlan0 scanning essid ap_name # iwconfig --help Usage: iwconfig [interface] interface essid {NNN|any|on|off} interface mode {managed|ad-hoc|master|...} interface freq N.NNN[k|