SSH and VNC in Linux

SSH in Linux

vi /etc/ssh/sshd_config

rpm –qa | grep openssh-server

yum install openssh* -y [if not installed ]

systemctl restart sshd.service

systemctl enable sshd.service

systemctl status sshd.service

port allow through firewall:

firewall -cmd --list-all --zone=public

netstat –ntlp | grep sshd

vnc in Linux:

#rpm –qa | grep tigervnc-Server

#yum install vnc tigervnc-server -y

#rpm –qa | grep tigervnc-Server

#cd /lib/systemd/system/

#cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver-root@:1.service

##cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver-user1@:2.service

[have to do same thing when we want to give more user permit to access vnc]

#cd /etc/systemd/system/

#vim vncserver-root@:1.service

#systemctl daemon-reload

# id root  [check user exist or not]

#vncpasswd

#su user1

#vncpasswd

#systemctl status vncserver-root@:1.service

# systemctl enable vncserver-root@:1.service

#firewall-cmd - -permanent - -add-service=vnc-server

# firewall-cmd - -reload

# firewall-cmd - -list-all

#netstat –ntlp | grep vnc