use existing SSH_AUTH_SOCK to execute commands on remote server-CodePudding

I connect to my work server (workserver1.com) from my local PC (localhost) using SSH and execute a bunch of commands on workserver1. Below are the commands I execute using SSH

1) run script on server collect production data and put it in a txt
   ssh -A workserver1.com 'python3 /usr/local/collect_data_online.py 2>&1 | tee /home/myname/out.txt'
   $ please input your dynamic token: <manually input credential token generated every 15s>
    
2) filter lines I need and put in a dat file
    ssh -A workserver1.com "grep 'my-keyword-cron' out.txt | grep -oP '({.*})' | tee workserver2.dat"
    $ please input your dynamic token: <manually input credential token again>
    
3) send data collected in 2) and send to workserver2 which could only access through workserver1**
    ssh -A workserver1.com 'curl workserver2.com --data-binary "@workserver2.dat" --compressed' "
    $ please input your dynamic token: <manually input credential token 3rd time>

In each steps above , I actually created 3 completed different socket with workserver1.com. I got this info from running command below on remote server

$ ssh -A workserver1.com 'printenv | grep SSH'
SSH_CLIENT=10.126.192.xxx 58276 22
SSH_SESSION_ID=787878787878787878
SSH_TTY=/dev/pts/0
SSH_AUTH_SOCK=/tmp/ssh-XXXXKuJLEX/agent.29291
SSH_AUTH_CERT_SERIAL=666666666
SSH_AUTH_CERT_KEY=myname
# SSH_CONNECTION changes each time I make a SSH request to workserver1.com. so I need repeatedly input dynamic token manually
SSH_CONNECTION=10.126.192.xxx 58276 10.218.35.yyy 22

On my localhost I can also see SSH sock which used for the SSH connection

$ SSH_AUTH_SOCK=/tmp/ssh-localhost/agent.12345

My question is , is there a way to using single existing socket to avoid making multiple SSH connections and just input the dynamic token once. I hope I could use existing sock to interactively type commands to this SSH server and collect outpu/data as I want , just like on my localhost

What's in my mind is

1) socat can I run some command on localhost like

socat UNIX-CONNECT:$SSH_AUTH_SOCK,exec:'commands I want to execute' - ==> possible to get an interactive client&server shell?

2) is there any ssh option I could use ?

I am new to socat and not familiar with ssh except some commonly used commands Thank you for your help in advance

CodePudding user response：

The solution is open the first connection with '-M' First use ControlMaster and ControlPath in ~/.ssh/config as below:

host *
ControlMaster auto
ControlPath ~/.ssh/ssh_mux_%h_%p_%r

And when connect toremote host the very first time, add '-M'

ssh -M $remotehost

Then in follow ssh connection with the same host you could just use

ssh $remotehost