Category Archives: Linux

This is where all my linux pages will live.

How to check sessions

Posted on January 16, 2013 by vicki

#Add this script to the DocRoot and browse to it. The session_id shouldn’t change if it is preserving sessions < ?php // DONT FORGET TO CHECK FOR VARNISH RUINING EVERYTHING ini_set( ‘display_errors’, 1); session_start(); echo ‘HOSTNAME: ‘ . gethostname() . … Continue reading →

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SSH stuff

Posted on January 10, 2013 by vicki

Use the -i option to specify a new key ssh -i newkey root@108.166.84.188 How to strip a passphrase from an openssl key cp filename.key filename.key.encrypted openssl rsa -in filename.key -out filename.key.nopass cp filename.key.nopass filename.key How to add or change a … Continue reading →

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Webmin foo

Posted on January 9, 2013 by vicki

to change the password, use this command: which changepassword.pl /usr/libexec/webmin/changepass.pl /etc/webmin root PASSWORD http://www.webmin.com/faq.html

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Using traceroute

Posted on January 7, 2013 by vicki

/Users/vick4522 ==> traceroute vickistan.com traceroute to vickistan.com (108.166.91.129), 64 hops max, 52 byte packets 1 72.32.115.226 (72.32.115.226) 172.771 ms 83.839 ms 89.278 ms 2 67.192.56.50 (67.192.56.50) 95.320 ms 95.043 ms 92.113 ms 3 coreb.dfw1.rackspace.net (74.205.108.26) 94.737 ms corea.dfw1.rackspace.net (74.205.108.10) 109.197 … Continue reading →

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Percona XtraDB Cluster on cloud

Posted on January 3, 2013 by vicki

http://www.percona.com/software/percona-xtradb-cluster

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Cool curl commands

Posted on January 3, 2013 by vicki

Using curl to GET a page The simplest and most common request/operation made using HTTP is to get a URL. The URL could itself refer to a web page, an image or a file. The client issues a GET request … Continue reading →

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WordPress database error MySQL server has gone away for query blah

Posted on January 2, 2013 by vicki

Edit the php file “wp-db.php” (in the “wp-include/” folder of your WordPress installation) and add $this->query(“set session wait_timeout=600”); somewhere in the function “___construct” after the $this->dbhost = $dbhost; and before the $this->dv_connect() statement. Reference this link if you need more: … Continue reading →

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Delivering root mail locally while relaying others

Posted on December 27, 2012 by vicki

In order to deliver some accounts locally, you can set up virtual aliases as follows: 1. Add the following line to /etc/postfix/main.cf: virtual_alias_maps = hash:/etc/postfix/virtual mail_spool_directory=/var/spool/mail 2. Create /etc/postfix/virtual as follows: root root@localhost 3. postmap /etc/postfix/virtual 4. Restart postfix Note: … Continue reading →

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