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31 q0JHoc1Z020963; Thu, 19 Jan 2012 19:50:38 +0200
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32 From: Tomi Ollila <tomi.ollila@iki.fi>
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33 To: Jesse Rosenthal <jrosenthal@jhu.edu>, notmuch@notmuchmail.org
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34 Subject: Re: Updated remote script
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35 In-Reply-To: <87k44n8xtr.fsf@jhu.edu>
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36 References: <87k44n8xtr.fsf@jhu.edu>
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42 Date: Thu, 19 Jan 2012 19:50:38 +0200
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68 On Thu, 19 Jan 2012 11:24:32 -0500, Jesse Rosenthal <jrosenthal@jhu.edu> wrote:
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71 > The big change in this script is that it uses dtach to set up a ssh
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72 > socket, rather than suggesting that users do so themselves with the
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73 > ControlMaster configuration option. This has the benefit of not making
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74 > anyone mess with ~/.ssh, and not impacting your other ssh work. It also
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75 > handles the issues of dead sockets on a laptop. (`ssh -Nf` seems like it
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76 > *should* work too, but emacs hangs when it is used in a script.) The
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77 > problem with this approach, of course, is that it requires dtach. A good
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78 > solution would be to (a) make the use of reusable ssh sockets optional,
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79 > and (b) allow it to use screen or tmux instead of dtach. Both would be
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80 > pretty easy, and I'll work on it at some point. But I figured getting a
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81 > two-year-old, broken script of the wiki would be a good first step.
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83 Quick comments: "/tmp/notmuch_dtach.socket" is dangerous (and the _ssh).
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86 make directory /tmp/notmuch_`id -u`
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87 and chmod it to 0700
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88 and make sure you own it and it has right permissions.
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90 make directory for these sockets in $HOME and chmod that to 700
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92 just drop the socket in $HOME/.ssh (which should already be protected)
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94 I personally use dtach, but basically never tmux nor screen ;)
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96 --8<----8<----8<----8<----8<----8<----8<----8<--
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98 In one of my scripts I do controlmaster connection in the following way:
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100 ssh -O check "$rhost" || ssh -f -oControlMaster=yes $rhost sleep 18001
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102 echo Backgroung ssh tunnel open for 5 hours.
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103 echo SIGTERM pid `ps ax | awk '/180[0]1/ { print $1; }'` \
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104 In case that is not what you want.
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106 and then ssh -oControlMaster=no $rhost command args
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109 > [0] http://notmuchmail.org/remoteusage/
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