Comment 66 for bug 708493

:) ...

In the IT world it takes time to analyze a problem well !!

Congrats ...

Happy Easter !!

On 4 April 2015 at 13:06, Mike <email address hidden> wrote:

> Thank you for the suggestions Gary. I realized that my problem is caused
> by the router firmware. Basically, they introduced loopback blocking and
> I couldn't connect from the same network even using the external IP.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/708493
>
> Title:
> Can't login anymore: Read from socket failed: Connection reset by peer
>
> Status in openssh package in Ubuntu:
> Triaged
> Status in openssh package in Debian:
> New
>
> Bug description:
> After todays update to
> 1:5.7p1-1ubuntu1
> I cannot login to SOME (!) of my servers. Example of a server failing:
>
> ~$ ssh -v root@mail
> OpenSSH_5.7p1 Debian-1ubuntu1, OpenSSL 0.9.8o 01 Jun 2010
> debug1: Reading configuration data /home/hildeb/.ssh/config
> debug1: Reading configuration data /etc/ssh/ssh_config
> debug1: Applying options for *
> debug1: Connecting to mail [141.42.202.200] port 22.
> debug1: Connection established.
> debug1: identity file /home/hildeb/.ssh/id_rsa type -1
> debug1: identity file /home/hildeb/.ssh/id_rsa-cert type -1
> debug1: identity file /home/hildeb/.ssh/id_dsa type 2
> debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024
> debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024
> debug1: identity file /home/hildeb/.ssh/id_dsa-cert type -1
> debug1: identity file /home/hildeb/.ssh/id_ecdsa type -1
> debug1: identity file /home/hildeb/.ssh/id_ecdsa-cert type -1
> debug1: Remote protocol version 1.99, remote software version
> OpenSSH_5.5p1 Debian-6
> debug1: match: OpenSSH_5.5p1 Debian-6 pat OpenSSH*
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_5.7p1 Debian-1ubuntu1
> debug1: SSH2_MSG_KEXINIT sent
> debug1: SSH2_MSG_KEXINIT received
> debug1: kex: server->client aes128-ctr hmac-md5 none
> debug1: kex: client->server aes128-ctr hmac-md5 none
> debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
> debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
> Read from socket failed: Connection reset by peer
>
> There is NOTHING in daemon.log, auth.log or syslog on the server I'm
> trying to connect to.
>
> Example of a server NOT failing:
>
> $ ssh -v root@netsight
> OpenSSH_5.7p1 Debian-1ubuntu1, OpenSSL 0.9.8o 01 Jun 2010
> debug1: Reading configuration data /home/hildeb/.ssh/config
> debug1: Reading configuration data /etc/ssh/ssh_config
> debug1: Applying options for *
> debug1: Connecting to netsight [10.47.2.222] port 22.
> debug1: Connection established.
> debug1: identity file /home/hildeb/.ssh/id_rsa type -1
> debug1: identity file /home/hildeb/.ssh/id_rsa-cert type -1
> debug1: identity file /home/hildeb/.ssh/id_dsa type 2
> debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024
> debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024
> debug1: identity file /home/hildeb/.ssh/id_dsa-cert type -1
> debug1: identity file /home/hildeb/.ssh/id_ecdsa type -1
> debug1: identity file /home/hildeb/.ssh/id_ecdsa-cert type -1
> debug1: Remote protocol version 2.0, remote software version
> OpenSSH_5.5p1 Debian-6
> debug1: match: OpenSSH_5.5p1 Debian-6 pat OpenSSH*
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_5.7p1 Debian-1ubuntu1
> debug1: SSH2_MSG_KEXINIT sent
> debug1: SSH2_MSG_KEXINIT received
> debug1: kex: server->client aes128-ctr hmac-md5 none
> debug1: kex: client->server aes128-ctr 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: Server host key: RSA
> 18:ce:76:c7:7c:f4:98:94:28:8f:62:4a:31:e8:5b:c9
> debug1: Host 'netsight' is known and matches the RSA host key.
> debug1: Found key in /home/hildeb/.ssh/known_hosts:56
> debug1: ssh_rsa_verify: signature correct
> debug1: SSH2_MSG_NEWKEYS sent
> debug1: expecting SSH2_MSG_NEWKEYS
> debug1: SSH2_MSG_NEWKEYS received
> debug1: Roaming not allowed by server
> debug1: SSH2_MSG_SERVICE_REQUEST sent
> debug1: SSH2_MSG_SERVICE_ACCEPT received
> debug1: Authentications that can continue: publickey,keyboard-interactive
> debug1: Next authentication method: publickey
> debug1: Offering DSA public key: /home/hildeb/.ssh/id_dsa
> debug1: Server accepts key: pkalg ssh-dss blen 433
> debug1: Authentication succeeded (publickey).
> Authenticated to netsight ([10.47.2.222]:22).
> debug1: channel 0: new [client-session]
> debug1: Requesting <email address hidden>
> debug1: Entering interactive session.
> debug1: Sending environment.
> debug1: Sending env LC_MESSAGES = en_US.utf8
> debug1: Sending env LANG = de_DE.UTF-8
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.04
> Package: openssh-client 1:5.7p1-1ubuntu1
> ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
> Uname: Linux 2.6.37-12-generic x86_64
> Architecture: amd64
> Date: Thu Jan 27 09:13:15 2011
> ProcEnviron:
> LANGUAGE=en_US:en
> LANG=de_DE.UTF-8
> LC_MESSAGES=en_US.utf8
> SHELL=/bin/bash
> RelatedPackageVersions:
> ssh-askpass N/A
> libpam-ssh N/A
> keychain N/A
> ssh-askpass-gnome 1:5.7p1-1ubuntu1
> SSHClientVersion: OpenSSH_5.7p1 Debian-1ubuntu1, OpenSSL 0.9.8o 01 Jun
> 2010
> SourcePackage: openssh
>
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>
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>