I am using MacOS on the desktop and Ubuntu Linux on the server. I disabled root login over ssh and enabled ssh based public key login. However, I recently added second Ubuntu server. I need to sync file between two using rsync command. Is there any way that I can log from the second server into my first server with root user from second server IP address only ({root@secondBOX }# ssh root@firstBOX1) without reducing OpenSSH server security option?
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I want to disable ssh clients from accessing using the password and only allow ssh login using SSH keys. How do I disable password authentication for SSH on Linux operating systems?
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I configured and use my openssh server to accept only public key based authentication. I need to test if my server accepting password. How to allow ssh client to use only password auth when pubkey auth configured?
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I am a new Linux/Unix server admin. How do I change the SSH Port for my Linux or Unix server using command line option?
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OpenSSH version 7.2 has been released. How do I install or upgrade my existing OpenSSH version to 7.2 on a OpenBSD unix operating system?
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I am a new Linux server user.
I need to tunnel X over ssh. I type the following command from OS X Unix terminal to login into far_away_machine (a centos server):
ssh -X -o options -A -p 22 user@centos-far-away-server
But, I am getting the following error on screen:
X11 forwarding request failed on channel 0
Last login: Sun Mar 23 15:58:51 2014 from 1.2.3.4
How do I fix “X11 forwarding request failed on channel 0” on Linux or Unix-like systems?
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I am a new CentOS Linux user. How do I change default sshd tcp port # 22 to 2022 on CentOS Linux version 5/6?
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