"X11Forwarding yes" causes "error: socket: Protocol not supported"

[mouring at etoh.eviladmin.org]

What client?

On Tue, 10 Apr 2001, [iso-8859-1] Graham Guttocks wrote:

> Greetings,
>
> I'm running OpenSSH_2.5.2p2, and OpenSSL-0.9.6a, on BSD/OS 4.0.
>
> Following the FAQ, I added the following line to my sshd_config
> in order to enable X11 forwarding:
>
> X11Forwarding yes
>
> Now openssh is disconnecting my sessions immediately after
> authentication and login with the following error messages:
>
> "error: socket: Protocol not supported"
> "Disconnecting: Command terminated on signal 11."
>
> Any ideas what the problem is?
>
> # sshd -d
> debug1: Seeded RNG with 39 bytes from programs
> debug1: Seeded RNG with 3 bytes from system calls
> debug1: sshd version OpenSSH_2.5.2p2
> debug1: load_private_key_autodetect: type 0 RSA1
> debug1: read SSH2 private key done: name rsa w/o comment success 1
> debug1: load_private_key_autodetect: type 1 RSA
> debug1: read SSH2 private key done: name dsa w/o comment success 1
> debug1: load_private_key_autodetect: type 2 DSA
> socket: Protocol not supported
> debug1: Bind to port 22 on 0.0.0.0.
> Server listening on 0.0.0.0 port 22.
> Generating 768 bit RSA key.
> RSA key generation complete.
> debug1: Server will not fork when running in debugging mode.
> Connection from 128.165.147.151 port 858
> debug1: Client protocol version 1.5; client software version OpenSSH-1.2.2
> debug1: match: OpenSSH-1.2.2 pat ^OpenSSH
> debug1: Local version string SSH-1.99-OpenSSH_2.5.2p2
> debug1: Sent 768 bit server key and 1024 bit host key.
> debug1: Encryption type: blowfish
> debug1: Received session key; encryption turned on.
> debug1: Installing crc compensation attack detector.
> debug1: Attempting authentication for jason.
> Accepted password for jason from 128.165.147.151 port 858
> debug1: session_new: init
> debug1: session_new: session 0
> debug1: Enabling compression at level 6.
> debug1: Allocating pty.
> debug1: Ignoring unsupported tty mode opcode 37 (0x25)
> debug1: Ignoring unsupported tty mode opcode 52 (0x34)
> debug1: Ignoring unsupported tty mode opcode 71 (0x47)
> debug1: Ignoring unsupported tty mode opcode 73 (0x49)
> debug1: Ignoring unsupported tty mode opcode 74 (0x4a)
> debug1: Ignoring unsupported tty mode opcode 75 (0x4b)
> debug1: Received request for X11 forwarding with auth spoofing.
> socket: Protocol not supported
> debug1: Entering interactive session.
> debug1: fd 5 setting O_NONBLOCK
> debug1: Setting controlling tty using TIOCSCTTY.
> debug1: fd 9 IS O_NONBLOCK
> debug1: server_init_dispatch_13
> debug1: server_init_dispatch_15
> debug1: Received SIGCHLD.
> debug1: End of interactive session; stdin 0, stdout (read 712, sent 712),
> stderr 0 bytes.
> debug1: compress outgoing: raw data 761, compressed 526, factor 0.69
> debug1: compress incoming: raw data 199, compressed 192, factor 0.96
> Disconnecting: Command terminated on signal 11.
> debug1: Calling cleanup 0x8054864(0x80e8088)
> debug1: pty_cleanup_proc: /dev/ttyp1
> debug1: Calling cleanup 0x8060fd8(0x0)
> debug1: Calling cleanup 0x8065bf0(0x0)
> debug1: writing PRNG seed to file /root/.ssh/prng_seed
>
>
>
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