• Sunny
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Boot to newly installed kernel once – Very important for remote support engineers. Suppose following situation: You have complied the new kernel from source and after the successful finish of kernel compilation the grub.conf is automatically set new kernel as default kernel. But we can’t make sure that the newly compiled kernel will boot the system normally. In that case you need to make a condition in such a way that if newly isntalled kernel didn’t boot the sytem, boot…

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  • Sunny
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Burn the following LIVECD image on CD and to use the Boot CD-ROM. http://repo.r1soft.com/bm/serverbackup-centos-bootcd-agent.iso Booting Linux Host From CD After you have the Live CD software written to CD (Obtaining Live CD Software), you can boot the server you want to Restore from this CD. Follow the instructions below. 1. Boot your server. During the first seconds of boot, click the required key combination to enter BIOS setup. 2. Select to boot from CD-ROM in the BIOS setup. Follow the…

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  • Sunny
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How to download Ftp site using wget how to download files from a FTP server with Linux gnu wget command. wget have many options. You can view its options via wget --help Here I am only dealing with the options --user and --password To download files from an FTP account do the following: wget --user=user --password=PaS5wOrD ftp://domain.tld/public_html/downloads/test_ This command will help to migrate a remote domain to another.

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  • Harish PP
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This article shows how to enable FTP (File Transfer Protocol) passive mode for server with pure-ftpd and APF (Advanced Policy Firewall) installed. Pure-ftpd installation will disable the passive mode and even if you have enabled it, you still have to open some ports of your APF.   Pure-Ftpd Configuration: * Login to your server with root access * Edit the pure-ftpd configuration by typing: vi /etc/pure-ftpd.conf * Look for line: #PassivePortRange 30000 50000 Note that the port range may different…

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  • Ann George
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APC is one of the most popular caching mechanism for PHP, and if you ever need an install from source, you may follow the following steps: 1. Install Steps: =================================================================== cd /usr/local/src wget http://pecl.php.net/get/APC tar -zxvf APC-x.x.x.tgz cd APC-x.x.x phpize ./configure --enable-apc --enable-apc-mmap --with-apxs make make install cp *.php /path/to/DocumentRootFolder/ ===================================================================== [root@server APC-x.x.x]# make install Installing shared extensions: /usr/lib64/php/modules/ Installing header files: /usr/include/php/ [root@server APC-x.x.x]#   2.  The most common error after install of APC. which we have seen is…

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  • Ann George
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The mail server Exim has a varied set of commands for email and queue manipulation. The following doc will assist you with some of the basic operations using exim. 1) To Print a count Of Messages in the queue:- #root@xeon [~]# exim -bpc 3506 Here 3506 mails are in the queue. 2) Command To List All The Messages In The Queue. (Time, Size,Message ID,Sender,Receipient):- #root@localhost# exim -bp Other Options:- root@localhost#exim -bpru 3) List the messages for a specific domain root@localhost#…

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  • Ann George
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1. To show the number of messages in the e-mail queue: /var/qmail/bin/qmail-qstat 2. If there are several messages in the queue, you can list them with: /var/qmail/bin/qmail-qread 3. To display individual messages: /var/qmail/bin/qmail-qread grep \#[0-9] awk '{print "find /var/qmail/queue -name "$6" xargs cat less"}' sed -e 's/\#//g' more 4. Just copy and paste a single line from the output, to rebuild that message Or: find /var/qmail/queue -name XXXX |xargs cat less PS : replace XXXX with the message number from…

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  • Ann George
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As a solution to disconnection while using an ftp session, the best solution is to enable Passive FTP for the corresponding ftp server In the FTP server configuration file. For Proftpd: 1. Edit the file /etc/proftpd.conf. 2. Add somewhere on top: PassivePorts 61001 65535. 3. Restart FTP by running: service proftpd restart. For Pure-ftp: 1. Edit the file /etc/pure-ftpd.conf. 2. Uncomment the line PassivePortRange. 3. Add: PassivePortRange 61001 65535 4. Restart FTP by running: service pure-ftpd restart.

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  • Sanjay Santhosh
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Traditionally you use the "sendmail -q" command to flush mail queue under Sendmail MTA. Under Postfix MTA, just enter the following command to flush the mail queue: ========= # postfix flush ========= OR ========= # postfix -f ========= To see mail queue, enter: ========= # mailq ========= To remove all mail from the queue, enter: ========= # postsuper -d ALL ========= To remove all mails in the deferred queue, enter: ========= # postsuper -d ALL deferred =========

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  • Sanjay Santhosh
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Spamming in Postfix : How to find the domains on which scripts are running in Postfix? APPLIES TO: Parallels Plesk Panel 11.x ,10.x Parallels Plesk Panel 10.x for Linux Parallels Plesk Panel 9.x for Linux/Unix ========================================= 1) Create a /usr/sbin/sendmail.postfix-wrapper script with the following content: ---------------------------- #!/bin/sh (echo X-Additional-Header: $PWD ;cat) | tee -a /var/tmp/mail.send|/usr/sbin/sendmail.postfix-bin "$@" ---------------------------- Note that it should be two lines, including "#!/bin/sh." 2) Create a log file, /var/tmp/mail.send, and grant it "a+rw" rights; make the wrapper executable;…

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