MacOS – ssh under tmux always asks for password

macossshtmux

Normally I give my passphrase for the private key on the first ssh invocation and then I am not asked for the passphrase (in this and all other bash sessions).

However, under tmux, I am asked for the passphrase over and over even in the same bash (same tmux pane).

I think the problem originated with the Sierra.

How do I avoid having to enter my passphrase repeatedly under tmux?

PS. ssh-add -l prints The agent has no identities. both with and without tmux.

PPS. $SSH_AUTH_SOCK names an existing socket under /private/tmp....

Best Answer

Open a new terminal window and run the following commands:

$ tmux new -s temp
$ ssh-agent
$ ssh-add

That seems to have fixed the issue for me; new tmux sessions now no longer ask me for my ssh key passphrase.

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MacOS – ssh-under-cron stops working in OS X 10.7 Lion

For anyone who ends up on this page, I realized I should post the answer:

Using launchd instead of cron does indeed fix the authorization problem. Your user launchd jobs (which run only when you are logged in) correctly use the SSH agent information that was unlocked via your keychain as part of login (as part of standard OS X key management, no other software required).

To minimize my interactions with launchd, I created a single launchd job that calls a bash script. In this way I can simply edit the script without dealing with launchd.

Here's the launchd file:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>
  <string>com.mycron.hourly</string>

  <key>ProgramArguments</key>
  <array>
    <string>/Users/john/bin/cron.hourly</string>
  </array>

  <key>Nice</key>
  <integer>1</integer>

  <key>StartInterval</key>
  <integer>3600</integer> <!-- start every X seconds -->

  <key>RunAtLoad</key>
  <true/>
</dict>
</plist>

I saved the file to ~/Library/LaunchAgents/com.mycron.hourly.plist, and then loaded it with:

launchctl load ~/Library/LaunchAgents/com.mycron.hourly.plist

Once loaded, it will run right away and then again every 60 minutes.

If you follow the same procedure, you'll want to change the `ProgramArguments' string with the right path to your script.

Open in tmux fails for all files

There seems to be a usernamespace problem if you want to open OS X apps inside tmux.

To fix that install with Homebrew:

brew install reattach-to-user-namespace

and put this inside your ~/.tmux.conf for the Bash shell:

set-option -g default-command "which reattach-to-user-namespace > /dev/null && reattach-to-user-namespace -l /bin/bash || /bin/bash"

after that you should be able to open files also in tmux.

Source I got this information: http://uber.pro/here-fishy-fishy/

Best Answer

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Open in tmux fails for all files

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