Sysadmin

https://lwn.net/Articles/428206/ road map for linux software “md” RAID. Good read, cudos to Neil Brown

http://www.oracle.com/technetwork/java/javase/fpupdater-tool-readme-305936.html curl -v -H “Accept-Language: en-us;q=2.2250738585072012e-308” http:///someurl if your tomcat/Jboss/whatver runs on unlatched JVM – the thread will go into infinite loop also see http://blogs.oracle.com/security/2011/02/security_alert_for_cve-2010-44.html

http://lwn.net/Articles/418918/#Comments Interesting discussion on LWN about an article describes problem with packet loss on home broadband networks due to improper buffer sizes in various network gear (routers, cable/dsl modems, switches, etc) along the route path.

http://www.outofcontrol.ca/archives/2006/11/28/sendmail-pipe-php-script-dilemma/ sendmal “smrsh” (aka sendmail restricted shell) – how to do do “pipe to a script” alias.

http://www.linuxatemyram.com/ this is funny (web page that shows to folks that are new to linux where [i.e. disk cache] the ram goes )

http://downloads.polycom.com/voice/voip/sip_sw_releases_matrix.html SIP Firmware for Polycom SoundPoint IP Phones and conf. devices

http://www.codinghorror.com/blog/2010/04/so-youd-like-to-send-some-email-through-code.html#comments post by Jeff Atwood about troubles involved in setting up your own mail server (i.e. in case you actually care that mail you send will actually reach the recipient). While I don’t agree with the post, post and comments (especially comments) do contains good info and suggestions on what it takes to maintain a good email server. /PS: in Jeff’s case, his code is just an email client, all the stuff he writes about is sysadmin’s job and has nothing to do with programming/ ...

http://nfws.inl.fr/nfws_userday/Jesper-Brouer_Large-iptables-rulesets.pdf Netfilter: Making large iptables rulesets scale

http://www.ibm.com/developerworks/linux/library/l-linuxboot/ [short] reference for linux boot process

ftp://ftp.redhat.com/pub/redhat/rhel/beta/6/ just released on Aprl 21, 2010. Download and Try