blackonsole - Page 33 of 49 - Linux System Administrator Journey

:: increase semaphores

Sysadmin.IDOct 22, 2011

:: How to check semaphores

ipcs -a

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status

------ Semaphore Arrays --------
key        semid      owner      perms      nsems
0x00000000 65536      daemon     600        1
0x00000000 98305      daemon     600        1

Tutorials

:: sudo: no tty present

Sysadmin.IDOct 20, 2011

:: Error sudo: no tty present and no askpass program specified :: How to fix sudo error

Tutorials

:: Disable Welcome Test Apache on CentOS

Sysadmin.IDOct 17, 20111 Comment

:: How to disable welcome test page apache on Linux CentOS + editing wecome.conf

vi /etc/httpd/conf.d/welcome.conf

Tutorials

:: No irq handler for vector

Sysadmin.IDOct 4, 2011

:: Kernel error if you get kenel error on your CentOS Linux like:

kernel:do_IRQ: 1.92 No irq handler for vector (irq -1)

Tutorials

:: AutoLogin User on Centos 6

Sysadmin.IDOct 4, 2011

:: Issue If you want username on your linux centos if you want the user to automatically login without having to enter usernames and passwords on Linux Centos Desktop.