Category : Trainings
Top 25+ MCSE Interview Questions for System Admins
by M H N
A collection of 25+ top MCSE interview questions with answers for System Admins. MCSE (Microsoft Certified Solutions Expert) is a senior level certification from Microsoft....
Solaris OK Prompt Commands
by M H N
What is Solaris OK Prompt? Most of the time, when you start the server with Solaris OS installed, it boots at run level 2 or...
MCSE – Top 15 Interview Questions with Answers for System Administrators
by M H N
Q1: What is Active Directory? Active Directory provides a centralized control for network administration and security. Server computers configured with Active Directory are known as...
Useful Exim Commands with Examples
by M H N
Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix/Linux systems connected to the Internet. It is freely...
The difference between fork(), vfork(), exec() and clone()
by M H N
Fork: The fork call basically makes a duplicate of the current process, identical in almost every way (not everything is copied over, for example, resource...
ELK Stack – Upgrade from 2.x to 5.x
by M H N
Elasticsearch Snapshot and Restore https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-snapshots.html Elasticsearch Migration Helper Plugin cd /usr/share/elasticsearch/ ./bin/plugin install https://github.com/elastic/elasticsearch-migration/releases/download/v2.0.4/elasticsearch-migration-2.0.4.zip you may get updated command from here -> Elasticsearch Migration Plugin...
App Store Optimization Checklist – ASO Tips
by M H N
App Store Optimization is a way of ensuring your app meets app store ranking criteria and rises to the top of a search results page....
Asterisk Server Security – SIP security
by M H N
If your SIP server is exposed to internet. Then you need to take some measure even if you have fail2ban installed. Fail2Ban keep track of...