(Difference between pages)
imported>ThorstenStaerk |
imported>ThorstenStaerk |
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− | I have a working environment and a non-working environment of [[shellinabox]].
| + | #REDIRECT [[screenshot on ubuntu]] |
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− | In the non-working environment shellinaboxd gives me
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− | forkpty failed
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− | as error message. Ok, let's [[strace]] it:
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− | <pre>
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− | # ps -A| grep shellin | |
− | 132 ? 00:00:00 shellinaboxd
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− | 154 ? 00:00:00 shellinaboxd
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− | # strace -p 132 -p 154
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− | [...] | |
− | [pid 154] chown("/dev/pts/1", 65534, 5) = -1 EPERM (Operation not permitted)
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− | [pid 154] clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fd0c22959d0) = 10036
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− | [pid 154] wait4(10036, <unfinished ...>
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− | [pid 132] <... write resumed> ) = 173 | |
− | [pid 132] recvmsg(3, <unfinished ...>
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− | [pid 154] <... wait4 resumed> [{WIFEXITED(s) && WEXITSTATUS(s) == 4}], 0, NULL) = 10036
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− | [pid 154] --- SIGCHLD (Child exited) @ 0 (0) ---
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− | [pid 154] rt_sigreturn(0x11) = 10036
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− | [pid 154] close(3) = 0
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− | [pid 154] pipe([3, 5]) = 0
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− | [pid 154] write(5, "forkpty() failed\r\n", 18) = 18
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− | </pre>
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− | In the working environment the call to chown is missing.
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− | Solution:
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− | shellinaboxd --user=0
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Latest revision as of 21:48, 19 April 2020