2 ms·

Yeah, definitely listen on a nonstandard port. I'm not sure how to limit to 1 connection per IP but it sounds rather limiting, so I wouldn't do it... I often ha

Yeah, definitely listen on a nonstandard port. I'm not sure how to limit to 1 connection per IP but it sounds rather limiting, so I wouldn't do it... I often have multiple SSH sessions from my own IP.

perpetualcrayon 9y ago
I just run a 'screen' session to open 10 bash sessions simultaneously when I want to do anything substantial. That has never felt restrictive to me.
- throwaway613834 9y ago
  Can you see two screens simultaneously with screen though?
  - perpetualcrayon 9y ago
    I'm not sure. The need has never come up for me though.
  - blfr 9y ago
    If you want this, I would suggest tmux. Tmux by default comes with tabs (multiple terminals) and panes (multiple terminals visible at once within a tab) where you can split your screen vertically and horizontally however you like. Usually, you want one full-height terminal and two about half the height of your screen. http://www.kaltpost.de/wp-content/uploads/2013/02/tmux.png http://www.kaltpost.de/wp-content/uploads/2013/02/tmux.png
    - throwaway613834 9y ago
      But these are so much more restrictive. Right now I just open two terminal windows -- they can overlap each other, I can make it so one covers every part of the other except a tiny part whose update I want to see, and make changes in these first one. I can kill programs in one without being worried about accidentally killing them in the other. I just don't see the appeal of forcing everything into a single terminal screen honestly. What's the benefit?
      - merijnv 9y ago
        If your network connection drops long running jobs keep running, no setup. I do most of my work on our university cluster over SSH. I can close/shutdown my laptop at any time (or have my connection drop) and as soon as I SSH back into the server all my editors, shells, running jobs, etc. are exactly how I left them.
        throwaway613834 9y ago
        Oh, that's not quite what I meant. The question wasn't about whether I should use {screen,tmux} to open a shell; the question was whether I should use {tmux,etc.} to manage multiple shells in the same terminal window. As opposed to having multiple instances of them open in different windows.
        eru 9y ago
        Mosh is also worth a look.
      - firethief 9y ago
        You want ControlMaster. man ssh_config.
- eru 9y ago
  You can also share an ssh connection between sessions.
blfr 9y ago
Give yourself some breathing room. I limit connections to four in a three minute window. iptables -A INPUT -p tcp -m tcp --dport 22 -m recent --update --seconds 180 --hitcount 4 --rttl --name SSH --mask 255.255.255.255 --rsource -j DROP

perpetualcrayon 9y ago

I just run a 'screen' session to open 10 bash sessions simultaneously when I want to do anything substantial. That has never felt restrictive to me.

throwaway613834 9y ago
Can you see two screens simultaneously with screen though?
- perpetualcrayon 9y ago
  I'm not sure. The need has never come up for me though.
- blfr 9y ago
  If you want this, I would suggest tmux. Tmux by default comes with tabs (multiple terminals) and panes (multiple terminals visible at once within a tab) where you can split your screen vertically and horizontally however you like. Usually, you want one full-height terminal and two about half the height of your screen. http://www.kaltpost.de/wp-content/uploads/2013/02/tmux.png http://www.kaltpost.de/wp-content/uploads/2013/02/tmux.png
  - throwaway613834 9y ago
    But these are so much more restrictive. Right now I just open two terminal windows -- they can overlap each other, I can make it so one covers every part of the other except a tiny part whose update I want to see, and make changes in these first one. I can kill programs in one without being worried about accidentally killing them in the other. I just don't see the appeal of forcing everything into a single terminal screen honestly. What's the benefit?
    - merijnv 9y ago
      If your network connection drops long running jobs keep running, no setup. I do most of my work on our university cluster over SSH. I can close/shutdown my laptop at any time (or have my connection drop) and as soon as I SSH back into the server all my editors, shells, running jobs, etc. are exactly how I left them.
      - throwaway613834 9y ago
        Oh, that's not quite what I meant. The question wasn't about whether I should use {screen,tmux} to open a shell; the question was whether I should use {tmux,etc.} to manage multiple shells in the same terminal window. As opposed to having multiple instances of them open in different windows.
      - eru 9y ago
        Mosh is also worth a look.
    - firethief 9y ago
      You want ControlMaster. man ssh_config.
eru 9y ago
You can also share an ssh connection between sessions.

blfr 9y ago

Give yourself some breathing room. I limit connections to four in a three minute window. iptables -A INPUT -p tcp -m tcp --dport 22 -m recent --update --seconds 180 --hitcount 4 --rttl --name SSH --mask 255.255.255.255 --rsource -j DROP