Category Archives: computing

Batteries

Lithium-ion: – Avoid complete discharge – Store/re-charge at 50%

Posted in computing | Leave a comment

FTP Notes

Proftpd connections: ftptop – show current connections in realtime in a ‘top’ like format ftpwho – list current connections Restart Proftpd (Parallels Plesk/Cent OS): /etc/init.d/xinetd restart Active vs Passive FTP: A good article on this subject can be found here. MS-DOS … Continue reading

Posted in computing, linux, windows | Leave a comment

Memory leak Netgear WNDA3100v2 USB Wifi adapter

Version 1.2 of the Windows XP driver has a memory leak – the solution is to upgrade the driver to a later version of the driver. Version 1.3 (driver date: 05/11/2009, driver version: 5.60.180.11) also appears to have a memory … Continue reading

Posted in computing, windows | Leave a comment

SRV 2019 Error (The server was unable to allocate from the system NonPaged pool because the pool was empty)

An excellent article on troubleshooting this error can be found here: http://blogs.msdn.com/b/ntdebugging/archive/2006/12/18/understanding-pool-consumption-and-event-id_3a00_–2020-or-2019.aspx

Posted in computing, windows | Leave a comment

Mac safe boot

Hold down shift key after startup tone.

Posted in apple, computing | Leave a comment

Apache reset/delete logs

http://httpd.apache.org/docs/1.3/misc/howto.html#logreset The correct procedure is to move the logfile, then signal Apache to tell it to reopen the logfiles. Apache is signaled using the SIGHUP (-1) signal. e.g. mv access_log access_log.old kill -1 `cat httpd.pid` Note: httpd.pid is a file containing the process id of the Apache httpd … Continue reading

Posted in computing, linux | Leave a comment

WordPress

CSS drop downs – drop down menus

Posted in computing | Leave a comment

Low Power PCs

Low power PCs: Tiny Green PC Raspberry Pi – approx 2 – 3.5 watts Aleutia – approx 10 watts Intel NUC – approx 11 watts LIVA Mini PC – approx 15 watts Asus Eee Box – idle approx. 20w, running approx. 22.7 – … Continue reading

Posted in computing | Leave a comment

Samsung Note 2 unfortunately s note has stopped working

This obscure error can sometimes be fixed by the following steps: Go to Settings Click on Language and Input Click the cog image next to the Samsung keyboard options (even if greyed out) Click on Input Languages On English (UK), … Continue reading

Posted in android, computing | Leave a comment

Vi Commands

Movement: h, j, k, l  – left, down, up, right spacebar – right Copy/paste: Y – copy one or more lines p – paste line below current cursor P – paste line above current cursor Line numbers: :set number

Posted in computing, linux | Leave a comment