sshd waiting 5 seconds between make fork and establish connection
- From: Andreas Matthus <Andreas.Matthus@xxxxxxxxxxxxx>
- Date: Wed, 18 Mar 2009 12:30:00 +0100
I have a extraordinary problem with one server - all other (and I have a
lot) works fine.
The problem best seen in log-file:
Mar 18 10:29:21 acadfs1 sshd: debug1: Forked child 26875.
Mar 18 10:29:21 acadfs1 sshd: debug3: send_rexec_state: entering
fd = 9 config len 675
Mar 18 10:29:21 acadfs1 sshd: debug3: ssh_msg_send: type 0
Mar 18 10:29:21 acadfs1 sshd: debug3: send_rexec_state: done
Mar 18 10:29:21 acadfs1 sshd: debug1: rexec start in 6 out 6
newsock 6 pipe 8 sock 9
Mar 18 10:29:21 acadfs1 sshd: debug1: inetd sockets after
dupping: 3, 3
Mar 18 10:29:26 acadfs1 sshd: Connection from A.B.C.D port 44376
# A.B.C.D is in verity a real IP
Mar 18 10:29:26 acadfs1 sshd: debug1: Client protocol version
2.0; client software version OpenSSH_5.1p1 Debian-5
The sshd was forked at 10:29:21 but connection bind at 10:29:26. On
client-side the break is before line
debug1: Remote protocol version 2.0, remote software version
At first I meant, that is a question of reverse lookup, but isn't it.
tcpdump show that many other trafic passed on netcard in this 5 seconds.
Other protocolls (smb, https, http,...) connect in milliseconds. After
esatblish the ssh-connection the transfer ist fast very well (100 MB in
32 seconds). Connections to localhost haven't a break.
Subsystem sftp /usr/lib/openssh/sftp-server
Has anyone a idea to solve this problem?
Description: S/MIME Cryptographic Signature
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