The following scripts may be very handy to get all the list of CMS’s on various servers. Wordpress: cPanel: find /home/*/public_html/ -type f -iwholename “*/wp-includes/version.php” -exec grep -H “\$wp_version =” {} \; Plesk: find /var/www/vhosts/*/httpdocs…
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08Mar, 2016
Zimbra: Assign a dedicated Outgoing SMTP IP for a domain
Zimbra Outgoing SMTP IP per Domain 1. Add the following line in “/opt/zimbra/postfix/conf/main.cf” sender_dependent_default_transport_maps = regexp:/opt/zimbra/postfix/conf/sdd_transport_maps.regexp 2. Create the file “/opt/zimbra/postfix/conf/sdd_transport_maps.regexp” and add the domains as below /@example\.com$/ …
07Mar, 2016
BASH: Script to alert when Exim mail queue is HIGH
The following script sends an alert whenever the exim mail queue is greater than a certain threshold #!/bin/bash if [ `/usr/sbin/exim -bpc` -ge 300 ]; then mail -s “Alert: There are over 300…
02Mar, 2016
WordPress: Change URL in Media and Posts
After changing the wordpress to the new website, it is observed that the URL of media files and Internal post links still shows the OLD url. To change it, login to…
01Mar, 2016
Script to Test Email Mail Delivery using SMTP Authentication
The below script may be useful to test the mail delivery using email authentication with and without SSL Note: The script uses pear Mail function, so make sure that PEAR Mail…
28Feb, 2016
Change SSH Port on CentOS 7
Let’s change the SSH port from default 22 to 2222 in CentOS 7. 1. Edit the following file vi /etc/ssh/sshd_config 2. Un-coment and Modify the following line Port 2222 3. Now by default Selinux is…
26Feb, 2016
Linux: Hide OS Version from Nmap scans
If you want to disable detection of OS version during Nmap scans 1. Edit the sysctl.conf file vi /etc/sysctl.conf 2. Add the following entry at the end of the file net.ipv4.ip_default_ttl = 199 save and…
25Feb, 2016
Online System/Network Admin Tools
1. MXTOOLBOX: One of the most popular website to check MX Records, Blacklist Status, SPF, DKIM, DNS, OPEN Ports etc … website: http://www.mxtoolbox.com 2. WHATISMYDNS: Want to check the global propogation status of your…
24Feb, 2016
WordPress does not take max_memory limit from PHP.ini
New Versions of wordpress does no take the max_memory_limit from PHP.ini. This is because the wordpress default memory limit is already defined in the following file. WORDPRESS_ROOT/wp-includes/default-constants.php If you want to modify, edit…
14Feb, 2016
Disable SELINUX on Redhat/CentOS Linux
1. Edit the following file vi /etc/sysconfig/selinux 2. Modify the following from SELINUX=permissive TO SELINUX=disabled 3. Reboot the server using reboot …
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