Category Archives: Linux

This is where all my linux pages will live.

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 →

Posted in Linux | Comments Off on Cool curl commands

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 →

Posted in Linux | Comments Off on WordPress database error MySQL server has gone away for query blah

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 →

Posted in Linux | Comments Off on Delivering root mail locally while relaying others

strace

Posted on December 20, 2012 by vicki

strace -s 512 -f lsyncd -pidfile /etc/lsync.lua

Posted in Linux | Comments Off on strace

Dealing with Openssl Certificates and Keys

Posted on December 20, 2012 by vicki

# Get the details of a PEM cert:openssl x509 -in <certname>.pem -text # Get the details of a crt file:openssl x509 -in your_certificate.crt -text -noout# Check whether a key and cert match using openssl:openssl rsa -noout -modulus -in server.key | … Continue reading →

Posted in Linux, OPENSSL and TLS | Comments Off on Dealing with Openssl Certificates and Keys

Using blackbox to change multiple dns records for account

Posted on December 18, 2012 by vicki

browse to https://clouddns.dcx.rackspace.com/zones/search Enter the account number and click Exact Search copy the lines from the console to a file called domainlist.txt domainlist.txt=================== 1 View accidentlawyerny.net 2 View acnestories.com 3 View acnewonders.com 4 View aromatherapyrecipe.com 5 View attorneyny.us 6 View … Continue reading →

Posted in Linux | Comments Off on Using blackbox to change multiple dns records for account

Make fail2ban send emails

Posted on December 14, 2012 by vicki

Edit /etc/fail2ban/jail.conf as follows: action = %(action_)s gets changed to action = %(action_mw)s which causes fail2ban to execute an action shortcut that sends mail: #########section of jail.conf############################################ # Action shortcuts. To be used to define action parameter # The simplest … Continue reading →

Posted in Linux | Comments Off on Make fail2ban send emails

Changing munin password

Posted on December 12, 2012 by vicki

To change the serverinfo password for munin, htpasswd /etc/munin/munin-htpasswd serverinfo To test, go to http://IP/munin

Posted in Linux | Comments Off on Changing munin password

Adding usb device to qemu in kvm

Posted on December 4, 2012 by vicki

HOWTO: Use USB devices in Virtual Machine Manager with QEMU

Posted in Linux | Comments Off on Adding usb device to qemu in kvm

Deny POST to a site in .htaccess

Posted on December 4, 2012 by vicki

 <limit POST OPTIONS>   Order deny,allow   Deny from all  </limit>

Posted in Linux | Comments Off on Deny POST to a site in .htaccess