Linux/Unix Open SSH Login Without Password Key Exchange including Debian, Redhat, Fedora, Ubuntu, BSD etc..

In those 4 simple commands you can setup mutual key exchange between two sshservers by using a single login shell session and single window.

*Just change the IP address examples of (10.10.0.2) to the target of your mutual key exchange.  It doesn't matter if the server is on a LAN or WAN (well unless the server is behind a firewall and you cannot SSH into it).

Code:
ssh-keygen -t rsa
cat ~/.ssh/id_rsa.pub|ssh 10.10.0.2 tee -a ~/.ssh/authorized_keys

ssh 10.10.0.2 ssh-keygen -t rsa
ssh 10.10.0.2 cat ~/.ssh/id_rsa.pub |tee -a ~/.ssh/authorized_keys


  • *tee simply just takes stdinput and redirects it to where ever you say.
  • *on some systems you'll need to chmod 600 ~/.ssh/authorized_keys


If you want to do it the hard way, on both servers you can just run this command:

ssh-keygen -t rsa

Just keep hitting enter, and then copy and paste the contents of:

~/.ssh/id_rsa.pub into the other servers "~/.ssh/authorized_keys" file.

Be careful not to add any extra spaces or line breaks when copying it or it won't work.

 

 

 


Tags:

linux, unix, ssh, login, password, debian, redhat, fedora, ubuntu, bsd, etc, commands, sshservers, shell, ip, examples, doesn, server, lan, wan, firewall, keygen, rsa, id_rsa, pub, tee, authorized_keys, stdinput, redirects, ll, chmod, servers, contents, quot, spaces, copying,

Latest Articles

  • Virtualbox VBox Guest-utils drag and drop files stops working with Windows VMs
  • How To Remove Ubuntu Netplan and Go Back to /etc/network/interfaces
  • How To Force Flash an AMD Instinct GPU To Another Model Using Debian Ubuntu Mint Linux
  • How To compile ollama from source to use unsupported AMD GPU with rocm in Ubuntu Debian
  • QEMU KVM Virtio GPU Windows Cannot Select 1080P
  • Linux Gnome Desktop Ubuntu Mint Debian Gets Slower After Weeks
  • Firefox How to Save Full Page As Screenshot/PDF
  • Nvidia Datacenter Driver Tesla Slow nvidia-smi response and high utilization with 0 usage
  • ffmpeg how to normalize / increase the volume of your audio
  • kdenlive audio blips pops cracks artifacts solution fix
  • haproxy / nginx certbot SSL issues
  • nginx how to see the real IP when behind a CDN
  • Docker how to find real container child process ID
  • Alibaba Aliyun how to reset password solution 'Setup does not meet the requirements, please resetting'
  • RTL88X Series 80Mhz hostapd mode for Linux Debian Kali
  • How To Deploy Your Own Mastodon Server in Docker
  • ffmpeg burning subtitles in non-English errors [Parsed_subtitles_0 @ 0x561d3a0b3b80] Glyph 0x6709 not found, selecting one more font for (Sans, 700, 0)
  • rsyslog in container config
  • Interesting Whisper AI CPU vs GPU Test
  • How to install pytorch with cuda capability for AI acceleration with Nvidia Tesla etc.. GPUs