When installing PHP from source, i get following error configure: error: utf8_mime2text() has new signature, but U8T_CANONICAL is missing. This should not happen. Check config.log for additional information. This is required to compile PHP with IMAP support. Fixed by installing
When login to Xfce Desktop, i get following error Unable to determine failsafe session name. Possible causes: xfconfd isn’t running (D-Bus setup problem); environment variable $XDG_CONFIG_DIRS is set incorrectly (must include “/etc”), or xfce4-session is installed incorrectly. This is due
usermod command allow you to change a user account. To change a users shell, run You can also use chsh Make user member of sudo group On Debian/Ubuntu On CentOS/RHEL
dmidecode shows details about computer hardware. On RHEL/CentOS, you need to install it with Show All Hardware Details Get RAM Details To see installed RAM sizes, run Example [root@server1 ~]# dmidecode -t memory | egrep “^\s+Size” Size: 8192 MB Size:
To create a user, run -d specify the home directory of the user. -s specify the shell used by user. Allow user to sudo Create user with home directory Create a user with sudo rights On RHEL/CentOS, replace sudo with
IPv6 is newer version of IP Address. It is ugly, hard to remember lol To list IPv6 address configured on your computer, run Disable IPv6 On CentOS 7 Edit file Add following Now run Temp Disable IPv6 On reboot IPv6
To see how many request a site is getting for a particular hour, run Example keep apache access log for 30 days find most accessed ip from apache log find all ip logged into cpanel
Password Protect Grub 2 in Ubuntu/Debian First you need to create password, this can be done by running grub-mkpasswd-pbkdf2 root@hon-vpn:~# grub-mkpasswd-pbkdf2 Enter password: Reenter password: PBKDF2 hash of your password is grub.pbkdf2.sha512.10000.E421A6997EBAF6E49B05AC950CC8154A4B9D703C8498E2916DCC31B0FC9F11B6B53E16B34DD09A1F90250E4E36AB930C6BED3C9D3B01D010A7B377F5CEF4B2AA.C5B99B66841C5325A1175AF05D50344260B6FC84912E2B1C591A085C0C0ECCE74B1661703F344E372ADEE67D409A3B538047EC437983D723991C5168979F8789 root@hon-vpn:~# Now edit file /etc/grub.d/00_header vi /etc/grub.d/00_header Add
To delete all mail from Postfix Mail server queue, run Example root@vm701:~# postsuper -d ALL postsuper: Deleted: 77 messages root@vm701:~# Back to Postfix
With valves SteamOS/Linux efforts, lot of games are getting Linux ports/release these days. This is a very good move by valve as it will make linux more usable for average users. Valved started SteamOS/Linux project after Windows 8 release, many
