http://www.cyberciti.biz/tips This is a Linux sys admin journal by Vivek about sys admin work, Linux tips & tricks, hacks, news and more. Fri, 03 Feb 2012 22:45:35 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.cyberciti.biz/tips/lighttpd-set-throughput-connections-per-ip.html http://www.cyberciti.biz/tips/lighttpd-set-throughput-connections-per-ip.html#comments Sun, 21 Jun 2009 00:02:13 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=5148 If you do not control or throttle end users, your server may run out of resources. Spammers, abuser and badly written bots can eat up all your bandwidth. A webserver must keep an eye on connections and limit connections per second. This is serving 101. The default is no limit. Lighttpd can limit the throughput for each single connection (per IP) or for all connections. You also need to a use firewall to limit connections per second. In this article I will cover firewall and lighttpd web server settings to throttle end users. The firewall settings can be applied to other web servers such as Apache / Nginx and IIS server behind PF / netfilter based firewall.]]> http://www.cyberciti.biz/tips/lighttpd-set-throughput-connections-per-ip.html/feed 15 http://www.cyberciti.biz/tips/linux-disk-scheduler-benchmarking.html http://www.cyberciti.biz/tips/linux-disk-scheduler-benchmarking.html#comments Sat, 09 Aug 2008 21:43:34 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2620 I've already written about changing the I/O scheduler for hard disk under Linux and avoiding sudden outburst of disk I/O using ionice utility. Google has sponsored Gelato@UNSW to take a close look at the disk schedulers in Linux, particularly when combined with RAID. They have now published their findings.]]> http://www.cyberciti.biz/tips/linux-disk-scheduler-benchmarking.html/feed 1 http://www.cyberciti.biz/tips/download-openssh-51-server.html http://www.cyberciti.biz/tips/download-openssh-51-server.html#comments Tue, 22 Jul 2008 20:37:11 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2481 http://www.cyberciti.biz/tips/download-openssh-51-server.html/feed 2 http://www.cyberciti.biz/tips/lighttpd-mod_compress-gzip-compression-tutorial.html http://www.cyberciti.biz/tips/lighttpd-mod_compress-gzip-compression-tutorial.html#comments Sat, 26 Apr 2008 10:18:36 +0000 Vivek Gite http://www.cyberciti.biz/tips/?p=2239 http://www.cyberciti.biz/tips/lighttpd-mod_compress-gzip-compression-tutorial.html/feed 11 http://www.cyberciti.biz/tips/eka-supercomputer.html http://www.cyberciti.biz/tips/eka-supercomputer.html#comments Sat, 29 Mar 2008 06:51:42 +0000 Vivek Gite http://www.cyberciti.biz/tips/eka-supercomputer.html http://www.cyberciti.biz/tips/eka-supercomputer.html/feed 0 http://www.cyberciti.biz/tips/download-linux-fibre-channel-over-ethernet.html http://www.cyberciti.biz/tips/download-linux-fibre-channel-over-ethernet.html#comments Tue, 18 Dec 2007 18:58:10 +0000 Vivek Gite http://www.cyberciti.biz/tips/download-linux-fibre-channel-over-ethernet.html http://www.cyberciti.biz/tips/download-linux-fibre-channel-over-ethernet.html/feed 0 http://www.cyberciti.biz/tips/how-fast-is-linux-sata-hard-disk.html http://www.cyberciti.biz/tips/how-fast-is-linux-sata-hard-disk.html#comments Sun, 07 Oct 2007 12:26:24 +0000 Vivek Gite http://www.cyberciti.biz/tips/how-fast-is-linux-sata-hard-disk.html So how do you find out how fast is your hard disk under Linux? Is it running at SATA I (150 MB/s) or SATA II (300 MB/s) speed without opening computer case or chassis?]]> http://www.cyberciti.biz/tips/how-fast-is-linux-sata-hard-disk.html/feed 19