conntrackd – conntrackd is the user-space daemon for the netfilter connection tracking system. This daemon synchronizes connection tracking states between several replica firewalls. Thus, conntrackd can be used to deploy highly available stateful firewalls. config file is in /etc/conntrackd/conntrackd.conf Im gonna use FTFW mode for syncing between 2 routers. Add this configuration at the end …

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I have two identical Centos7 latest relase machines.One is named rotuer1 and other one is router2. I will use VRRP protocol for router redundancy.In my test bench im not gonna use any layer 2/3 switches. Specification : MB: A2SDi-8C-HLN4F 1x Intel(R) Atom(TM) CPU C3758 1x *8gig memory 2х HUS722T1TALA604 4x internal network interfaces. 1.Network connectivity. …

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The ‘Man‘ command Man stands for manual which is a reference book of a Linux operating system. It is similar to HELP file found in popular software. history History command shows all the commands that you have used in the past for the current terminal session. TBA

Listing files (ls) If you want to see the list of files on your UNIX or Linux system, use the ‘ls‘ command. It shows the files /directories in your current directory. Suppose, your “Music” folder has following sub-directories and files. You can use ‘ls -R‘ to shows all the files not only in directories but …

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——client——– sudo apt-add-repository ppa:x2go/stable sudo apt-get update sudo apt-get install x2goclient —–server——- *deb* sudo apt-add-repository ppa:x2go/stable sudo apt-get update sudo apt-get install x2goserver x2goserver-xsession sudo apt-get install x2golxdebindings x2godbadmin –createdb systemctl start x2goserver.service