Linux

Exim mail queue clear

To clear SPAMS and unwanted mails from the mail queue   exim -bp | awk ‘$6~”frozen” {print $3 }’ | xargs exim -Mrm grep -lr ‘nobody@’ /var/spool/exim/input/ | \sed -e ’s/^.*\/\([a-zA-Z0-9-]*\)-[DH]$/\1/g’ | xargs exim -Mrm grep -rl ‘From: Mail Delivery System’ /var/spool/exim/input/ | \sed -e ’s/^.*\/\([a-zA-Z0-9-]*\)-[DH]$/\1/g’ | xargs exim -Mrm […]

Mount raw and qcow2 VM disk images

Mounting a partition from raw image is pretty simple: losetup /dev/loop0 image.img kpartx -a /dev/loop0 mount /dev/mapper/loop0p1 /mnt/image If kernel parameter (as loop in compiled into Fedora’s kernel) like loop.max_part=63 added it is even simplier: losetup /dev/loop0 image.img mount /dev/loop0p1 /mnt/image Alternative way is to specify direct offset to partition: […]

What is .htaccess and how to disable .htaccess?

What is .htaccess and how to disable .htaccess? .htaccess is use to modify the way Apache behaves for a directory and it’s sub-directories. It gives you an extra control on your server, like setting up custom error messages, password protect a directory, writing rewrite rules, blocking IPs etc. However, it […]

Solaris > Gathered System Information or How to print system configuration

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How To Configure Yum Behind Authenticated Proxy Server

we are going to configure my YUM software to use proxy to get my LINUX updated with new softwares all the times with repositories available on internet. OS = Fedora 10 1) Configure yum.conf vi /etc/yum.conf enter following lines at bottom of [main] section proxy=http://yourproxyaddress:port/ proxy_username=youruser proxy_password=yourpassword   2) Export […]

pure-ftpd: [ERROR] Configuration error: Illegal load limit: 0

If you receive the following error message in the /var/log/messages file while restarting the pure-ftpd service, the problem is in the ftp configuration file at /etc/pure-ftpd.conf pure-ftpd: (?@?) [ERROR] Configuration error: Illegal load limit: 0 Edit the pure-ftp configuration file and It’s both that another, huge theater would store be […]

How to Fix “-bash: hdparm: command not found” on Linux CentOS 6

Question: When i try to run hdparm command to check to check the hard drive read and writing speed, the following error has been returned. Hdparm is a command line utility to measure sequential disk performance which is primarily used to tune and optimize disk parameters. Hdparm is free software […]

How to Change Your Mac Address in Linux

Short for Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. […]

Deny Or Allow Countries With Apache .htaccess

Introduction The following script is using blogama.org IP geolocation API to automatically generate Apache .htaccess file to deny or allow specific countries. You can put this script under crontab and the .htaccess rules will be automatically updated. Also, it can update multiple .htaccess files. Source: http://blogama.org [ad#adgoogle1] Deny or allow? […]