Tag Archives: linux

strace – trace system calls and signals

Posted on January 13, 2009 by niteartadmin

Nice little program that might be used in linux to find what files were open by the process. For example: strace ls 2>&1|grep “open”

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How to find what application is using network port in linux?

Posted on December 30, 2008 by niteartadmin

netstat -nlp will give you an idea. [root@os]# netstat -nlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name tcp        0      0 0.0.0.0:9921                0.0.0.0:*                   LISTEN      10982/ora_d000_orcl tcp        0      0 10.10.10.10:1521           0.0.0.0:*                   LISTEN      12516/tnslsnr tcp        … Continue reading →

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Checklist for linux server used for tomcat/java apps

Posted on May 8, 2008 by niteartadmin

Create tomcat user Update /etc/security/limits.conf to increase the number of open files limit for tomcat users. You need it if java apps opens a lot of files for caching or on busy website. tomcat soft nofile 16383 tomcat hard nofile … Continue reading →

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