Author: actsupp-r0cks

AWS Security Group Rules (Allow Ip address and port numbers using the AWS security group)

Amazon EC2 Security Groups for Linux Instances. A security group acts as a virtual firewall that controls the traffic for one or more instances. When an instance is launched, you associate one or more security groups with that instance. The rules of a security group controls the inbound traffic that’s allowed to reach the instances […]

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Find open ports on the Linux server using a script

Find open ports on the Linux server using a script Create a .sh file with below script and set execute permission for the scrip file. #vi portscan.sh #!/bin/bash #The port numbers PORT1=21 #ftp PORT2=22 #ssh PORT3=25 #smtp PORT4=53 #dns PORT5=80 #http PORT6=110 #POP3 PORT7=143 #IMAP PORT8=443 #https PORT9=1433 #MSSQL PORT10=3306 #MYSQL PORT11=3389 #Microsoft-RDP PORT12=5432 #PostgreSQL […]

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Routing protocol commands list

CCNA Routing Protocol Commands IP ROUTING #sh ip route // To view IP routing tables created on a Cisco router. Static Routing Routers are manually configured for networks that are not directly connected, to be able to route to all networks via the next-hop interface. Syntax: (config)#ip route 192.168.10.0 255.255.255.0 192.168.20.2 (config)#no ip route 192.168.30.0 […]

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