OpenSSH server: Other version running than installed












1















I have an Ubuntu 18.04 server. I installed openssh-server and openssh-client. According to apt, the installed version of both packages is 7.6p1-4ubuntu0.1, but the running version of the ssh-server (sshd) is OpenSSH_6.7p2 Ubuntu-4p1. The version of the client (ssh) is correct.



I already restarted the server several times, but the running version is still the same.



Recently I reinstalled OpenSSH, because my clients couldn't connect to the server with version 6.7. See: SSH connection closed right after login



It worked for a while, but after some system-updates, it switched back to version 6.7. (the installed package is still 7.6)



Could anybody please help me with this? I don't understand how the running version can differ from the package version.










share|improve this question























  • How did you determine that version OpenSSH_6.7p2 Ubuntu-4p1 is running? What is the output of dpkg -l | grep openssh? Add both to your question by editing your question.

    – Thomas
    Dec 30 '18 at 12:07











  • Package names (and numbers) are not the same as version numbers.

    – guiverc
    Dec 30 '18 at 12:08













  • @Thomas I executed sshd -V (and /usr/sbin/sshd -V which resulted in the same output). Additionally, my client on OS X tells me that the server is using OpenSSH_6.7p2. The output of your command is a table with openssh-client, -server and -sftp-server. The version is 1:7.6p1-4ubuntu0.1 for all of them.

    – FelixSFD
    Dec 30 '18 at 12:11













  • @guiverc: not necessarily, but if you have such a big difference in versions, then something is wrong.

    – Thomas
    Dec 30 '18 at 12:22











  • @FelixSFD: so sshd -V does result in OpenSSH_6.7p2? Did you somehow overwrite the binaries in /usr/sbin/sshd by copying things or similar?

    – Thomas
    Dec 30 '18 at 12:26
















1















I have an Ubuntu 18.04 server. I installed openssh-server and openssh-client. According to apt, the installed version of both packages is 7.6p1-4ubuntu0.1, but the running version of the ssh-server (sshd) is OpenSSH_6.7p2 Ubuntu-4p1. The version of the client (ssh) is correct.



I already restarted the server several times, but the running version is still the same.



Recently I reinstalled OpenSSH, because my clients couldn't connect to the server with version 6.7. See: SSH connection closed right after login



It worked for a while, but after some system-updates, it switched back to version 6.7. (the installed package is still 7.6)



Could anybody please help me with this? I don't understand how the running version can differ from the package version.










share|improve this question























  • How did you determine that version OpenSSH_6.7p2 Ubuntu-4p1 is running? What is the output of dpkg -l | grep openssh? Add both to your question by editing your question.

    – Thomas
    Dec 30 '18 at 12:07











  • Package names (and numbers) are not the same as version numbers.

    – guiverc
    Dec 30 '18 at 12:08













  • @Thomas I executed sshd -V (and /usr/sbin/sshd -V which resulted in the same output). Additionally, my client on OS X tells me that the server is using OpenSSH_6.7p2. The output of your command is a table with openssh-client, -server and -sftp-server. The version is 1:7.6p1-4ubuntu0.1 for all of them.

    – FelixSFD
    Dec 30 '18 at 12:11













  • @guiverc: not necessarily, but if you have such a big difference in versions, then something is wrong.

    – Thomas
    Dec 30 '18 at 12:22











  • @FelixSFD: so sshd -V does result in OpenSSH_6.7p2? Did you somehow overwrite the binaries in /usr/sbin/sshd by copying things or similar?

    – Thomas
    Dec 30 '18 at 12:26














1












1








1








I have an Ubuntu 18.04 server. I installed openssh-server and openssh-client. According to apt, the installed version of both packages is 7.6p1-4ubuntu0.1, but the running version of the ssh-server (sshd) is OpenSSH_6.7p2 Ubuntu-4p1. The version of the client (ssh) is correct.



I already restarted the server several times, but the running version is still the same.



Recently I reinstalled OpenSSH, because my clients couldn't connect to the server with version 6.7. See: SSH connection closed right after login



It worked for a while, but after some system-updates, it switched back to version 6.7. (the installed package is still 7.6)



Could anybody please help me with this? I don't understand how the running version can differ from the package version.










share|improve this question














I have an Ubuntu 18.04 server. I installed openssh-server and openssh-client. According to apt, the installed version of both packages is 7.6p1-4ubuntu0.1, but the running version of the ssh-server (sshd) is OpenSSH_6.7p2 Ubuntu-4p1. The version of the client (ssh) is correct.



I already restarted the server several times, but the running version is still the same.



Recently I reinstalled OpenSSH, because my clients couldn't connect to the server with version 6.7. See: SSH connection closed right after login



It worked for a while, but after some system-updates, it switched back to version 6.7. (the installed package is still 7.6)



Could anybody please help me with this? I don't understand how the running version can differ from the package version.







18.04 openssh






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asked Dec 30 '18 at 11:53









FelixSFDFelixSFD

1187




1187













  • How did you determine that version OpenSSH_6.7p2 Ubuntu-4p1 is running? What is the output of dpkg -l | grep openssh? Add both to your question by editing your question.

    – Thomas
    Dec 30 '18 at 12:07











  • Package names (and numbers) are not the same as version numbers.

    – guiverc
    Dec 30 '18 at 12:08













  • @Thomas I executed sshd -V (and /usr/sbin/sshd -V which resulted in the same output). Additionally, my client on OS X tells me that the server is using OpenSSH_6.7p2. The output of your command is a table with openssh-client, -server and -sftp-server. The version is 1:7.6p1-4ubuntu0.1 for all of them.

    – FelixSFD
    Dec 30 '18 at 12:11













  • @guiverc: not necessarily, but if you have such a big difference in versions, then something is wrong.

    – Thomas
    Dec 30 '18 at 12:22











  • @FelixSFD: so sshd -V does result in OpenSSH_6.7p2? Did you somehow overwrite the binaries in /usr/sbin/sshd by copying things or similar?

    – Thomas
    Dec 30 '18 at 12:26



















  • How did you determine that version OpenSSH_6.7p2 Ubuntu-4p1 is running? What is the output of dpkg -l | grep openssh? Add both to your question by editing your question.

    – Thomas
    Dec 30 '18 at 12:07











  • Package names (and numbers) are not the same as version numbers.

    – guiverc
    Dec 30 '18 at 12:08













  • @Thomas I executed sshd -V (and /usr/sbin/sshd -V which resulted in the same output). Additionally, my client on OS X tells me that the server is using OpenSSH_6.7p2. The output of your command is a table with openssh-client, -server and -sftp-server. The version is 1:7.6p1-4ubuntu0.1 for all of them.

    – FelixSFD
    Dec 30 '18 at 12:11













  • @guiverc: not necessarily, but if you have such a big difference in versions, then something is wrong.

    – Thomas
    Dec 30 '18 at 12:22











  • @FelixSFD: so sshd -V does result in OpenSSH_6.7p2? Did you somehow overwrite the binaries in /usr/sbin/sshd by copying things or similar?

    – Thomas
    Dec 30 '18 at 12:26

















How did you determine that version OpenSSH_6.7p2 Ubuntu-4p1 is running? What is the output of dpkg -l | grep openssh? Add both to your question by editing your question.

– Thomas
Dec 30 '18 at 12:07





How did you determine that version OpenSSH_6.7p2 Ubuntu-4p1 is running? What is the output of dpkg -l | grep openssh? Add both to your question by editing your question.

– Thomas
Dec 30 '18 at 12:07













Package names (and numbers) are not the same as version numbers.

– guiverc
Dec 30 '18 at 12:08







Package names (and numbers) are not the same as version numbers.

– guiverc
Dec 30 '18 at 12:08















@Thomas I executed sshd -V (and /usr/sbin/sshd -V which resulted in the same output). Additionally, my client on OS X tells me that the server is using OpenSSH_6.7p2. The output of your command is a table with openssh-client, -server and -sftp-server. The version is 1:7.6p1-4ubuntu0.1 for all of them.

– FelixSFD
Dec 30 '18 at 12:11







@Thomas I executed sshd -V (and /usr/sbin/sshd -V which resulted in the same output). Additionally, my client on OS X tells me that the server is using OpenSSH_6.7p2. The output of your command is a table with openssh-client, -server and -sftp-server. The version is 1:7.6p1-4ubuntu0.1 for all of them.

– FelixSFD
Dec 30 '18 at 12:11















@guiverc: not necessarily, but if you have such a big difference in versions, then something is wrong.

– Thomas
Dec 30 '18 at 12:22





@guiverc: not necessarily, but if you have such a big difference in versions, then something is wrong.

– Thomas
Dec 30 '18 at 12:22













@FelixSFD: so sshd -V does result in OpenSSH_6.7p2? Did you somehow overwrite the binaries in /usr/sbin/sshd by copying things or similar?

– Thomas
Dec 30 '18 at 12:26





@FelixSFD: so sshd -V does result in OpenSSH_6.7p2? Did you somehow overwrite the binaries in /usr/sbin/sshd by copying things or similar?

– Thomas
Dec 30 '18 at 12:26










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