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Questions[tmux](server)

Martin Hope
Magneon
Asked: 2016-03-09 09:50:23 +0800 CST
  • 9

I am performing a quick audit of services listening on external interfaces on a Ubuntu 14.04 machine, and tmux is binding TCP *:50994 and *:59147 as reported by netstat -l.

I can connect to this port from another computer on the network (barring any firewall settings), but I can't find any documentation about why it's binding an external port. What is the purpose of this and is there a way to stop it?

tmux
Martin Hope
luilver
Asked: 2015-06-05 22:07:50 +0800 CST
  • 9

I have killed a byobu session accidentally (kill -9 byobuSessionId), and now when I try to start another byobu command fails with "can't create socket".

Also tmux new-session returns: "can't create socket"

I have tried sudo service screen-cleanup start without success !

Any idea how can I solve it ?

tmux
Martin Hope
bumbling fool
Asked: 2012-07-07 06:06:22 +0800 CST
  • 11

If I run tmux as root, it runs normally and fully functional. I created a couple users, and it will not run as any of the users.

create session failed: : No such file or directory

I checked the outside $TERM is xterm and inside $TERM is screen as FAQs suggest that is most common cause of problems.

I've used tmux regularly on many different systems, but I on this VPS I can't figure out what's up... A little help, please?

EDIT: Thanks to Jay's helpful advice about strace, I found a permissions problem with /dev/pty*. I fear this won't be a useful post for many others as it seems kind of a one-off problem. 

strace -f -e trace=file tmux

32000 open("/dev/ptmx", O_RDWR) = -1 EACCES (Permission denied) 32000 open("/dev/ptyp0", O_RDWR) = -1 EACCES (Permission denied) ..... 32000 open("/dev/ptypf", O_RDWR) = -1 EACCES (Permission denied) 32000 open("/dev/ptyq0", O_RDWR) = -1 ENOENT (No such file or directory)

tmux
Martin Hope
Accatyyc
Asked: 2011-12-10 05:46:29 +0800 CST
  • 35

This is probably simple, but I really can't find out how you do it. I have read the man pages and googled without results.

Problem: How do I run a command in a detached tmux window?

Example: I want my detached window 'foo' to run 'ls', but I want to do it from another terminal.

I've tried stuff like: 'tmux -t foo ls' without results.

shell tmux