I'm having trouble connecting to my remote host via SSH. I have narrowed the issue down to my local host only as other clients make nominal (fast and stable) connections every time.
Attempting to connect to
localhost via SSH will time out all but about 1 out of 10 attempts (it hangs here and then times out):
515 chris@localhost ~ $ ssh -vvv remotehost-root OpenSSH_6.4, OpenSSL 1.0.1e 11 Feb 2013 debug1: Reading configuration data /home/chris/.ssh/config debug1: /home/chris/.ssh/config line 43: Applying options for remotehost-root debug1: Reading configuration data /etc/ssh/ssh_config debug2: ssh_connect: needpriv 0 debug1: Connecting to remotehost.example.net [18.104.22.168] port 12345. ^C
localhost is an up-to-date Arch system:
517 chris@localhost ~ $ uname -a Linux localhost 3.12.1-1-ARCH #1 SMP PREEMPT Thu Nov 21 08:18:42 CET 2013 x86_64 GNU/Linux
And I'm using an SSH config file to alias
remotehost as follows:
521 chris@localhost .ssh $ cat ~/.ssh/config ... host remotehost-root HostName remotehost.example.net User root Port 12345 IdentityFile ~/.ssh/remotehost-root.id_rsa ...
This is a recent problem, but unfortunately I don't recall making changes to anything relevant. I'm not sure what to check.
Maybe it's worth noting that this affects all SSH connections (such as git over ssh and
SFTP) and not just the command line SSH tool.
I don't have any trouble accessing
remotehost.example.net over any other protocol (e.g.
HTTPS, BitTorrent, etc).
The only active/uncommented line in
Where else can I look? What other debug tools can I use (all I can think to do is run
I tried running
tcpdump on remotehost while attempting a connection, but couldn't figure out how to filter the packets from the shell running
tcpdump thus infinite-loop spamming myself out of any useful diagnostics.
UPDATE 1: Worth noting that I've been able to duplicate this behavior on a second SSH host, as well as an IRC server, thus proving (in my mind) that this is an issue wholly within some config on my local host.
UPDATE 2: Also worth noting that while my localhost has trouble with these outbound connections, other clients (including on one, and one off, my LAN) have no issues whatsoever to any of the same remote hosts, or any other hosts. Again, leading me to believe that this is solely some config issue within localhost (but maybe I'm wrong?).
UPDATE 3: I have removed the openssh package (and configs) from localhost and reinstalled, to no avail.