So you say this works: echo "<cmd>" | ssh user@host:port Does this work? ssh user@host:port "<cmd>"
Fabric (assuming my info is current) uses the command sub-protocol of ssh, not the shell sub-protocol, which I'm guessing is what happens when you pipe to ssh. Chris On 10/04/2013, at 16.51, Zhigang Wang <[email protected]> wrote: > Thanks very much. However, it doesn't work. > > I think this issue may live in the paramiko side: don't know anyone familiar > with the difference between: > > 1. ssh user@host:port <cmd> > > 2. echo "<cmd>" | ssh user@host:port > > The second one works. So maybe we can emulate that behavior in > paramiko/fabric. > > Thanks, > > Zhigang > > > > On Tue, Apr 9, 2013 at 9:52 PM, Jeff Forcier <[email protected]> wrote: >> Pro tip: >> >> * Read up on what ssh -T does (it disables allocation of a remote pty) >> * Search Fabric docs for "pty" >> * Find out you can set env.always_use_pty=False to disable use of a remote >> pty >> * Hopefully discover that this fixes the problem (?) >> >> >> On Tue, Apr 9, 2013 at 7:16 PM, Zhigang Wang <[email protected]> wrote: >> > Thanks. >> > >> > Currently I hit this: >> > http://net-ssh.lighthouseapp.com/projects/36253/tickets/32-sun-ilom-wont-accept-commands-even-after-successful-login >> > >> > Maybe a ILOM bug, but they have workaround: >> > >> > Doesnt' work: >> > >> > $ ssh -t root@ca-dev33m "show /SYS" >> > >> > Warning: Permanently added 'ca-dev33m,10.211.2.238' (RSA) to the list of >> > known hosts. >> > Password: >> > shell: Invalid credentials >> > >> > >> > Connection to ca-dev33m closed. >> > >> > Works: >> > >> > $ echo "show /SYS" | ssh -T root@ca-dev33m >> > >> > How to clone the same behavior in fabric? >> > >> > Using our fabric: >> > >> > # python ilom.py -s root@ca-dev33m -p changeme >> > /usr/lib64/python2.6/site-packages/Crypto/Util/number.py:57: >> > PowmInsecureWarning: Not using mpz_powm_sec. You should rebuild using >> > libgmp >= 5 to avoid timing attack vulnerability. >> > _warn("Not using mpz_powm_sec. You should rebuild using libgmp >= 5 to >> > avoid timing attack vulnerability.", PowmInsecureWarning) >> > [root@ca-dev33m] Executing task 'ilom_get_mac' >> > [root@ca-dev33m] run: show /System ilom_mac_address >> > INFO:paramiko.transport:Connected (version 2.0, client OpenSSH_5.1) >> > INFO:paramiko.transport:Authentication (keyboard-interactive) successful! >> > INFO:paramiko.transport:Secsh channel 1 opened. >> > [root@ca-dev33m] out: shell: Invalid credentials >> > [root@ca-dev33m] out: >> > [root@ca-dev33m] out: >> > [root@ca-dev33m] out: >> > >> > Disconnecting from ca-dev33m... done. >> > shell: Invalid credentials >> > >> > >> > From here: >> > https://groups.google.com/group/mailing.unix.openssh-dev/tree/browse_frm/month/2009-07?_done=%2Fgroup%2Fmailing.unix.openssh-dev%2Fbrowse_frm%2Fmonth%2F2009-07%3F&; >> > >> > It may related to the buffersize? How can I enlarge the buffersize for >> > fabric? >> > >> > I tried env.linewise=True, it doesn't help. >> > >> > I will continue debugging on it. >> > >> > Thanks, >> > >> > Zhigang >> > >> > >> > On Tue, Apr 9, 2013 at 6:55 PM, Jeff Forcier <[email protected]> wrote: >> >> >> >> Try setting env.use_shell = False: >> >> >> >> http://docs.fabfile.org/en/1.6/usage/env.html#use-shell >> >> >> >> On Tue, Apr 9, 2013 at 6:40 PM, Zhigang Wang <[email protected]> wrote: >> >> > Hi Jeff and all, >> >> > >> >> > I want to use fabric for ilom, a ssh configuration interface. Currently >> >> > it >> >> > doesn't work because the ilom system doesn't have a shell there. How can >> >> > set >> >> > env.shell to none? Or is it supported? >> >> > >> >> > The ilom shell: >> >> > >> >> > $ ssh root@ca-dev33m >> >> > Warning: Permanently added 'ca-dev33m,10.211.2.238' (RSA) to the list of >> >> > known hosts. >> >> > Password: >> >> > >> >> > Oracle(R) Integrated Lights Out Manager >> >> > >> >> > Version 3.1.2.10 r74387 >> >> > >> >> > Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. >> >> > >> >> > Warning: password is set to factory default. >> >> > >> >> > -> help >> >> > The help command is used to view information about commands and targets >> >> > >> >> > Usage: help [-format wrap|nowrap] [-o|-output terse|verbose] >> >> > [<command>|legal|targets|<target>|<target> <property>] >> >> > >> >> > Special characters used in the help command are >> >> > [] encloses optional keywords or options >> >> > <> encloses a description of the keyword >> >> > (If <> is not present, an actual keyword is indicated) >> >> > | indicates a choice of keywords or options >> >> > >> >> > help <target> displays description if this target and its >> >> > properties >> >> > help <target> <property> displays description of this property of this >> >> > target >> >> > help targets displays a list of targets >> >> > help legal displays the product legal notice >> >> > >> >> > Commands are: >> >> > cd >> >> > create >> >> > delete >> >> > dump >> >> > exit >> >> > help >> >> > load >> >> > reset >> >> > set >> >> > show >> >> > start >> >> > stop >> >> > version >> >> > >> >> > -> sh >> >> > Invalid command 'sh' - type help for a list of commands. >> >> > >> >> > -> bash >> >> > Invalid command 'bash' - type help for a list of commands. >> >> > >> >> > Thanks, >> >> > >> >> > Zhigang >> >> >> >> >> >> >> >> -- >> >> Jeff Forcier >> >> Unix sysadmin; Python/Ruby engineer >> >> http://bitprophet.org >> > >> > >> >> >> >> -- >> Jeff Forcier >> Unix sysadmin; Python/Ruby engineer >> http://bitprophet.org > > _______________________________________________ > Fab-user mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/fab-user
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