![](https://itadminguide.com/wp-content/uploads/2021/06/OSILayer-960x513.png)
OSI & TCP/IP Layer Model
OSI & TCP/IP Layer reference for CCNA 200-301 exam
![search and replace](https://itadminguide.com/wp-content/uploads/2021/05/search-and-replace.png)
Find and replace text in all WordPress Posts
Better Search Replace is the best WordPress plugin to search and replace any text in all the posts in your WordPress site
![w32 query configuration](https://itadminguide.com/wp-content/uploads/2021/05/w32-query-configuration.png)
Time Synchronization Problem in Hyper-V Host
Use the command on Hyper-V to synchronize time with Domain Controller, "w32tm /config /syncfromflags:domhier /update"
![timedatectl](https://itadminguide.com/wp-content/uploads/2021/05/timedatectl.png)
Update Date, Time, Timezone on Ubuntu
Use timedatectl command to view and change time, date and timezone in Ubuntu
![](https://itadminguide.com/wp-content/uploads/2020/10/WordPress.png)
Prevent WordPress auto conversion of double hyphen
In functions.php, add the following line at the end remove_filter( 'the_content', 'wptexturize' );
![](https://itadminguide.com/wp-content/uploads/2020/10/WordPress.png)
Configure Mail Settings in WordPress
Use Contact Form and Post SMTP free plugins to setup mail settings in WordPress website
![](https://itadminguide.com/wp-content/uploads/2018/12/BlogPosts.png)
Configure SPF for GoDaddy mail account
Godaddy SPF record is TXT record with v=spf1 a mx include:secureserver.net ~all
![](https://itadminguide.com/wp-content/uploads/2020/10/WordPress.png)
Subdomain Email Configuration in GoDaddy Hosting
Follow these easy steps to setup a subdomain email account in your hosting cPanel
![](https://itadminguide.com/wp-content/uploads/2018/09/Paloalto-Firewalls-960x339.png)
Palo Alto Firewall Command Line Reference
Palo Alto Firewall Command Line Reference
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