Additional info.
I started sshd with -ddd. It is definitely hanging on the line: "Trying to reverse map address 192.168.1.102."
Now, I'm not sure how to fix that. BTW, I do have VerifyReverseMapping set to "NO" in sshd_config. But, that seems to be being ignored.
Any suggestions? darren
darren wrote:
I could use some help troubleshooting a problem that I am having with long delays before receiving a password prompt when I log onto my FreeBSD box via ssh.
I have done quite a bit of googling and I realize that the problem likely has something to do with reverse DNS lookups. But, I don't know how to pinpoint the problem from there. I've basically been playing with the /etc/resolv.conf and /etc/hosts settings. In my hosts file, I have an entry for the private IP of my Linux box with its hostname (which is not a FQDN) and my resolv.conf file looks like:
domain myrealdomain.com //I just added this, but no noticeable help search myrealdomain.com nameserver my.ip's.dns.numbers nameserver my.ip's.dns.numbers2
Here's a more detailed explanation of the problem. To me, the problem seems very peculiar. The problem only exists whenever I use my laptop (which is running Linux) from within my own LAN. I can get around it by logging onto my ISP's server or my school's server (either one) and then logging back into my FreeBSD box from there. If I am at school with my laptop, I can even log into my FreeBSD server at home directly without a delay. But, if I try going directly to my FreeBSD box from my laptop when they are both inside the LAN, I get a very long delay (like 3 minutes). Sometimes the delay is so long, the connection times out and I never get a prompt.
I have set the logging level up to DEBUG3 in the /etc/sshd_config file. But, I don't see where any verbose output is going.
This problem is on FreeBSD 4.10-RELEASE.
TIA, backdoc
The /var/log/auth.log file just says: ... fatal: Timeout before authentication for 192......
Here's what my laptop spits out before the long delay kicks in.
[EMAIL PROTECTED]:/home/backdoc # ssh -vl backdoc 192.168.1.4
OpenSSH_3.9p1 Debian-1ubuntu2, OpenSSL 0.9.7e 25 Oct 2004
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to 192.168.1.4 [192.168.1.4] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /root/.ssh/identity type -1
debug1: identity file /root/.ssh/id_rsa type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: Remote protocol version 1.99, remote software version OpenSSH_3.5p1 FreeBSD-20030924
debug1: match: OpenSSH_3.5p1 FreeBSD-20030924 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.9p1 Debian-1ubuntu2
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host '192.168.1.4' is known and matches the DSA host key.
debug1: Found key in /root/.ssh/known_hosts:1
debug1: ssh_dss_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
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