Bug#497455: openssh-server: connection attempts fail with Connection refused
On Tue, Sep 2, 2008 at 9:20 AM, Christoph Groth [EMAIL PROTECTED] wrote: Sep 2 08:08:28 mimoid sshd[4422]: Server listening on :: port 22. Do you have only IPv6 and no IPv4? mimoid:/var/log# ssh localhost ssh: connect to host localhost port 22: Connection refused Try ssh -v localhost. Cheers -- -v Verbose mode. Causes ssh to print debugging messages about its progress. This is helpful in debugging connection, authentica‐ tion, and configuration problems. Multiple -v options increase the verbosity. The maximum is 3.
Bug#497455: openssh-server: connection attempts fail with Connection refused
Colin Watson [EMAIL PROTECTED] writes: Please attach /etc/ssh/sshd_config, and look for relevant entries around sshd startup time in /var/log/auth.log. After running /etc/init.d/ssh restart only two lines are appended to /var/log/auth.log: Sep 2 08:08:28 mimoid sshd[3807]: Received signal 15; terminating. Sep 2 08:08:28 mimoid sshd[4422]: Server listening on :: port 22. In fact, these are also the only lines found by zgrep '^Sep 2 08:08' /var/log/* Also, no logs are generated when I try to log in: mimoid:/var/log# ssh localhost ssh: connect to host localhost port 22: Connection refused mimoid:/var/log# date Tue Sep 2 08:15:42 CEST 2008 mimoid:/var/log# zgrep '^Sep 2 08:15' /var/log/* mimoid:/var/log# This is my /etc/ssh/sshd_config: # Package generated configuration file # See the sshd(8) manpage for details AllowUsers cwg # What ports, IPs and protocols we listen for Port 22 # Use these options to restrict which interfaces/protocols sshd will bind to ListenAddress :: #ListenAddress 192.168.0.1 Protocol 2 # HostKeys for protocol version 2 HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_dsa_key #Privilege Separation is turned on for security UsePrivilegeSeparation yes # Lifetime and size of ephemeral version 1 server key KeyRegenerationInterval 3600 ServerKeyBits 768 # Logging SyslogFacility AUTH LogLevel INFO # Authentication: LoginGraceTime 600 PermitRootLogin no StrictModes yes #RSAAuthentication yes PubkeyAuthentication yes #AuthorizedKeysFile %h/.ssh/authorized_keys # Don't read the user's ~/.rhosts and ~/.shosts files IgnoreRhosts yes # For this to work you will also need host keys in /etc/ssh_known_hosts RhostsRSAAuthentication no # similar for protocol version 2 HostbasedAuthentication no # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication #IgnoreUserKnownHosts yes # To enable empty passwords, change to yes (NOT RECOMMENDED) PermitEmptyPasswords no # Change to no to disable s/key passwords ChallengeResponseAuthentication no # Change to yes to enable tunnelled clear text passwords PasswordAuthentication no # To change Kerberos options #KerberosAuthentication no #KerberosOrLocalPasswd no #AFSTokenPassing no #KerberosTicketCleanup no # Kerberos TGT Passing does only work with the AFS kaserver #KerberosTgtPassing yes X11Forwarding yes X11DisplayOffset 10 PrintMotd no PrintLastLog yes TCPKeepAlive yes #UseLogin no #MaxStartups 10:30:60 #Banner /etc/issue.net Subsystem sftp /usr/lib/openssh/sftp-server UsePAM yes -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#497455: openssh-server: connection attempts fail with Connection refused
Package: openssh-server Version: 1:5.1p1-2 Severity: important After openssh-server was upgraded from 1:4.7p1-12 to 1:5.1p1-2 all connection attempts (from local and remote systems) fail, e.g.: mimoid:~# ssh localhost ssh: connect to host localhost port 22: Connection refused mimoid:~# telnet localhost 22 Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection refused Strangely, sshd appears to be listening: mimoid:~# lsof | grep sshd | grep LISTEN sshd 6422root3u IPv6 38220 TCP *:ssh (LISTEN) The problem disappears when I downgrade openssh-server and openssh-client back to 1:4.7p1-12. -- System Information: Debian Release: lenny/sid APT prefers testing APT policy: (990, 'testing') Architecture: i386 (i686) Kernel: Linux 2.6.26-1-686 (SMP w/1 CPU core) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Shell: /bin/sh linked to /bin/bash Versions of packages openssh-server depends on: ii adduser 3.110 add and remove users and groups ii debconf [debconf-2.0] 1.5.22 Debian configuration management sy ii dpkg 1.14.20Debian package management system ii libc6 2.7-13 GNU C Library: Shared libraries ii libcomerr21.41.0-3 common error description library ii libkrb53 1.6.dfsg.4~beta1-4 MIT Kerberos runtime libraries ii libpam-modules1.0.1-4Pluggable Authentication Modules f ii libpam-runtime1.0.1-4Runtime support for the PAM librar ii libpam0g 1.0.1-4Pluggable Authentication Modules l ii libselinux1 2.0.65-4 SELinux shared libraries ii libssl0.9.8 0.9.8g-13 SSL shared libraries ii libwrap0 7.6.q-16 Wietse Venema's TCP wrappers libra ii lsb-base 3.2-19 Linux Standard Base 3.2 init scrip ii openssh-blacklist 0.4.1 list of default blacklisted OpenSS ii openssh-client1:5.1p1-2 secure shell client, an rlogin/rsh ii zlib1g1:1.2.3.3.dfsg-12 compression library - runtime Versions of packages openssh-server recommends: ii openssh-blacklist-extra 0.4.1 list of non-default blacklisted Op ii xauth 1:1.0.3-2 X authentication utility Versions of packages openssh-server suggests: pn molly-guard none (no description available) pn rssh none (no description available) pn ssh-askpass none (no description available) -- debconf information: ssh/insecure_rshd: ssh/vulnerable_host_keys: ssh/insecure_telnetd: ssh/new_config: true * ssh/use_old_init_script: true ssh/encrypted_host_key_but_no_keygen: ssh/disable_cr_auth: false -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#497455: openssh-server: connection attempts fail with Connection refused
On Mon, Sep 01, 2008 at 10:44:59PM +0200, Christoph Groth wrote: After openssh-server was upgraded from 1:4.7p1-12 to 1:5.1p1-2 all connection attempts (from local and remote systems) fail, e.g.: mimoid:~# ssh localhost ssh: connect to host localhost port 22: Connection refused mimoid:~# telnet localhost 22 Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection refused Strangely, sshd appears to be listening: mimoid:~# lsof | grep sshd | grep LISTEN sshd 6422root3u IPv6 38220 TCP *:ssh (LISTEN) The problem disappears when I downgrade openssh-server and openssh-client back to 1:4.7p1-12. Please attach /etc/ssh/sshd_config, and look for relevant entries around sshd startup time in /var/log/auth.log. -- Colin Watson [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
