configuration file HowTo - Linux / Unix Q & A from nixCraft Page 2

MySQL: Change Default Port Under Linux / UNIX

last updated August 26, 2008 in CentOS, Debian / Ubuntu, Linux, MySQL, Networking, RedHat and Friends, Solaris-Unix, Suse, Ubuntu Linux, UNIX

Q.I’m using MySQL 5 under Red Hat Enterprise Linux 5. How do I change default mysql server port (tcp port 3306) under Linux or UNIX operating systems?

psql: FATAL: Ident authentication failed for user "username" Error and Solution

last updated August 19, 2008 in CentOS, Linux, Linux / UNIX File Formats, PostgreSQL, RedHat and Friends, Troubleshooting, UNIX

Q. I’ve installed Postgresql under Red Hat Enterprise Linux 5.x server. I’ve created username / password and database. But when I try to connect it via PHP or psql using following syntax:

psql -d myDb -U username -W

It gives me an error that read as follows:

psql: FATAL: Ident authentication failed for user “username”

How do I fix this error?

Restart / Update init Configuration File /etc/inittab After Changes Without Rebooting Server

last updated June 25, 2008 in FAQ

I’ve made changes / updates to my /etc/inittab file to configure init process to start with agetty. init reads the /etc/inittab configuration file at the time of system boot. How do I re-read this file without rebooting my Linux server?

FreeBSD Accounting: Install and Configure System Activity Reporter (SAR)

last updated January 1, 2009 in FreeBSD, Hardware, Linux

How do I install sar command under FreeBSD to collect, report, or save system activity information?

Red Hat: Set a Subscription Number Using a Kickstart File

last updated August 15, 2010 in Package Management, RedHat and Friends

How can I set a subscription number in a Kickstart file in Red Hat Enterprise Linux 5?

Setting Up a CentOS / Red Hat Linux DHCP Client

last updated March 15, 2008 in CentOS, Networking, RedHat and Friends

Q. How do I setup my Red Hat / CentOS / Fedora Linux system to get IP address and other information via a DHCP server for eth0 interface?
Continue reading “Setting Up a CentOS / Red Hat Linux DHCP Client”

Find Out Linux Kernel Modules ( Drivers ) Location / Directory

last updated January 3, 2017 in CentOS, Debian / Ubuntu, Hardware, Linux, RedHat and Friends, Suse

Can you tell me an exact location of Linux kernel driver under Linux file system? Where to find all available modules under Linux operating systems?