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SSH on port 443 with SSLH

Unix & Linux Asked on December 21, 2021

I have a problem with SSH and HTTPS on port 443.
I have installed SSLH on my VirtualServer an want to connect via Port 443 to SSH and also use 443 for the HTTPS server.

With my windows computer it will worked. But if i try to connect to the SSH via port 443 with my mac i get the following error:

AppDevTimeMachine:logs macuser$ ssh DOMAINVSERVER -p 443 -vvv
OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011
debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 20: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to DOMAINVSERVER [IPVSERVER] port 443.
debug1: Connection established.
debug1: identity file /Users/macuser/.ssh/id_rsa type 1
debug1: identity file /Users/macuser/.ssh/id_rsa-cert type -1
debug1: identity file /Users/macuser/.ssh/id_dsa type -1
debug1: identity file /Users/macuser/.ssh/id_dsa-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.2
ssh_exchange_identification: Connection closed by remote host

One Answer

maybe a problem related to corrupted fingerprint / keys

The fingerprints or the keys has corrupted (did you manually edit one of these files?). Remove the server-side fingerprint (in the clients): ~/.ssh/known_hosts and try again. When you re-connect you will be prompted to accept the host key again.

If you are able to access the machine you may want to make a copy and re-create the server-side ~/.ssh/authorized_keys.

Then you have to restart sshd

[EDIT] maybe a hosts.allow problem? inspect the file in the server to see il sshd is allowed for all sources grep sshd /etc/hosts.allow sshd: ALL

Answered by LilloX on December 21, 2021

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