sockets

Linux Find Out CPU Architecture Information

by on May 26, 2011 · 12 comments

How do I find out my CPU architecture information under Linux operating systems?

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Linux: Find Out Which Process Is Listening Upon a Port

by on October 31, 2010 · 18 comments

How do I find out running processes were associated with each open port? How do I find out what process has open tcp port 111 or udp port 7000 under Linux?

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Linux Syslogd: Nothing Gets Logged Using /dev/log And /jail/apache/dev/log

by on August 22, 2010 · 0 comments

I‘ve configured my Apache in chrooted jail at /jail/apache directory. However, my syslogd is not working and nothing gets logged using /dev/log and /jail/apache/dev/log. How do I fix this problem under CentOS 5.x AMD64 with SELinux?

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BIND: Max open files (1024) is smaller than max sockets (4096) Error and Solution

by on May 1, 2009 · 9 comments

While going though my logs I found that BIND9 on Debian version 5.x is giving a warning which read as follows:

max open files (1024) is smaller than max sockets (4096)

How do I fix this problem?

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Linux / UNIX Find Out What Program / Service is Listening on a Specific TCP Port

by on February 20, 2008 · 13 comments

Q. How do I find out which service is listening on a specific port? How do I find out what program is listening on a specific TCP Port?

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How To Upgrade FreeBSD To New Release

by on January 7, 2008 · 4 comments

Q. I’ve custom compile kernel and I’d like to upgrade my system to latest stable release. How do I upgrade FreeBSD to new release without using freebsd-update binary tool?

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Examining the Linux / FreeBSD / UNIX filesystem with ls command

by on August 6, 2007 · 0 comments

Q. I’m new to Linux and how do I examine filesystem and identify regular files or directories? A. Both Linux and UNIX comes with ls command for examining the filesystem. You can use ls command to look at the filesystem. ls command can display: => Character devices => Regular files => Sym links (symbolic links) [...]

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