Most needed but hidden keyboard shotkeys
Shortkey Does what Context CTRL + SHIFT + < Make font smaller in size Microsoft Word CTRL + SHIFT + > Make font bigger in size Microsoft Word
Check if a port is blocked or allowed using iptables – the better way
Use the following linux command as root user to check if a port is blocked on your machine or not. Copy the command. Replace <PORT> with actual port number e.g. 22 and run it on bash terminal. for tcp ports : #start port=<PORT>; (iptables -nL INPUT | head -1 | grep “DROP” > /dev/null || …
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Popular Telecom Acronyms
Acronym Full form PDP Packet Data Protocol IMS IP Media SubSystem
Add Permanent Hostname in CentOS
1. edit file /etc/sysconfig/network 2. channge line HOSTNAME=localhost.localdomain to whatever you want. 3. Reboot system. 4. Thank me.
Configure HTTPS on Apache Web Server
Following are the simple steps to configure https on linux machine 1. yum install mod_ssl 2. yum install crypto-utils 3. genkey e.g. genkey www.example.com 4. Click Next. and choose 1024 as key size 5. select No if asked “Would you like to send a Certificate to (CSR) to a Certificate Authority (CA)? 6. Do not …