Subnet to Mask Bits conversion table Mask CIDR Length (Mask Bits) 128.0.0.0 1 192.0.0.0 2 224.0.0.0 3 240.0.0.0 4 248.0.0.0…
How to tell the network speed of network cards in Linux? CentOS 7 Find the network cards: ip addr 1:…
How do I display a list of all network cards under Linux operating systems? You can use any one of…
what is the use of /etc/udev/rules.d/70-persistent-net.rules file in linux? is anyother way to change interface name in linux other than…
The ‘neighbor table overflow’ is a VERY common linux issue on large networks. Some network trigger this with default linux…
Add the IP as Eth0 when the primary is Eth1 (no gateway) # nano /etc/network/interfaces auto lo iface lo inet…
See if ports are open nmap -T4 -Pn -p 21,22,25,80,110,143,443,3389 $SERVER_IP
Server connections speeds are a function of a variety of variables. The server’s connection speed to the Internet, all processes…
Do you think 1 Megabit per second (1 Mbps) will allow you to download a 1 Megabyte file in one…
Useful commands to check if a server is getting ddos’d Show IPs with more than 10 connections open: # netstat…