MCSE Top Interview Q&A

Top 25+ MCSE Interview Questions for System Admins

0
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

0
What is OK Prompt? Most of the time, when you start the server with Solaris OS installed, it boots at run level 2 or run...

The difference between fork(), vfork(), exec() and clone()

0
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

0
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.zipyou may get updated command from here -> Elasticsearch Migration Plugin InstallYou may download plugin from...

netstat – Find number of active connections in Linux using netstat

0
The "netstat" command is quite useful for checking connections to your machine. If we wanted to see ALL of the connections (which i really...

Web Server Performance Tuning

0
First off, Apache, nginx, or LightSpeed aside - if you're running a server with 1000-2000 requests/second it's time to start thinking about dual servers...

top command on multi core processor

0
top command shows CPU usage as a percentage of a single CPU by default. That's why you can have percentages that are >100. On a...

Windows – How to Kill hung service – Windows Service Which is Stuck

0
Sometimes as an administrator you may need to kill a service which is stuck in a 'starting' or 'stopping' state, in order to avoid...
mysql update

Reasons to Stick with MySQL

0
MySQL’s founder is encouraging people to steer away from his creation. Here’s why he’s wrong.Schism between the worlds of open source and proprietary software...
mysql update

MySQL Update – MySQL Upgrade

0
MySQL update process some times create issues like, MySQL server doesn't start.when you perform MySQL update usingyum updateoryum update mysqloryum update mysql-serverbefore restarting or...