The Incoherency.Net Wiki - User contributions [en]

FreeBSD

2008-02-25T06:30:15Z

2610:78:AD:1:216:CBFF:FEA5:6F48: /* Technical Notes */

== Servers ==

=== Inferno ===

==== Maintenance ====

===== 2005-05-14 Hard Drive Upgrade =====

Installed Maxtor DiamondMax Plus 9 (6Y120L0) and reinstalled OS. Based on the date this was likely FreeBSD 5.3.

===== 2007-07-12 6.2-RELEASE-p5 =====

Added serial console for easier management. Performed source upgrade from 6.1 to 6.2-RELEASE-p5. Not sure when the upgrade was done from 5.3 to 6.1 or how many increments were in between. Such details are lost to history.

===== 2008-01-09 Heat Sink and Fan Replacement =====

Replaced Heat Sink and Fan (Evercool Socket A). Previous fun died. Inferno didn't like this much.

===== 2008-02-18 Hard Drive Upgrade =====

Previous hard drive Maxtor DiamondMax Plus 9 (6Y120L0) serial: Y35AK8PE was quickly failing. Added [http://www.promise.com/product/product_detail_eng.asp?segment=Non-RAID%20HBAs&product_id=138 Promise SATA300 TX4] 4-port SATA II PCI controller card and Seagate Barracuda 7200.11 SATA 3Gb/s NCQ 750GB 32MB Cache ([http://www.seagate.com/ww/v/index.jsp?vgnextoid=1cd981f8c0f43110VgnVCM100000f5ee0a0aRCRD&locale=en-US ST3750330AS])

During the upgrade, updated the system from FreeBSD 6.2 to FreeBSD 7.0 RC2.

== Technical Notes ==

=== SMART (Self-Monitoring, Analysis and Reporting Technology) ===

http://smartmontools.sourceforge.net/
http://www.linuxjournal.com/article/6983

* smartctl -l selftest /dev/ad0
* smartctl -t long /dev/ad0
* smartctl -Hc /dev/ad0

=== Disk image via dd ===

dd bs=512 if=/dev/rXX# of=/some_dir/foo.dmg conv=noerror,sync

=== tar over netcat ===

* nc -v -v -w 40 -l -p 8888 > foo.tar
* tar cjvf * | nc remotehost 8888

=== Updating root DNS ===

dig @a.root-servers.net . ns > /etc/namedb/named.root

=== Portupgrade ===

==== Rebuild Package and all dependent packages ====

portupgrade -rfx openssl openssl

==== Disable Vulnerability Checking ====

DISABLE_VULNERABILITIES=yes

=== Qmail log Timestamps ===

Can be converted to human readable using the tai64nlocal command.

=== Name Service Caching Daemon ===

The nscd daemon added in FreeBSD 7 improves performance of nsswitch type lookups (users, groups, etc) but can cause some surprising results with new users not being found in the system. The cache can be cleared for all users by running:

<pre>%nscd -I cachename</pre>

=== Using IDE CD Burners ===

Place the following in /boot/loader.conf for IDE CDRW support:

atapicam_load="YES"
hw.ata.atapi_dma=1

FreeBSD

2008-02-24T20:18:15Z

2610:78:AD:1:216:CBFF:FEA5:6F48: /* Servers */

Mac OS X

2008-02-16T04:03:57Z

2610:78:AD:1:216:CBFF:FEA5:6F48: New page: == Convert icns to PNG == <pre>sips -s format png Dictionary.icns --out ~/Desktop/Dictionary_icon</pre>

== Convert icns to PNG ==

<pre>sips -s format png Dictionary.icns --out ~/Desktop/Dictionary_icon</pre>