ssh ethernet tunneling as normal user












1















I would like to connect 2 tap-devices. The tap-device on the remote server is owned by "user". This is my test-command:



# ssh -oTunnel=ethernet -w0:0 user@server


But it does not work, I get this error:



channel 0: open failed: administratively prohibited: open failed


How could I solve this problem?



distro: openSUSE, location: France










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  • 1





    Hi. What distro and location?

    – Time4Tea
    9 hours ago











  • I am little confused. I was about to answer "not" because I remember it once said in the man page that you require root privileges on your client to create a tun or tap device, but I cant find that remark i neither ssh nor ssh_config man pages. So I guess I don't have an answer for you. :-(

    – Bananguin
    7 hours ago






  • 1





    The tap already exists and is owned by the user. ssh just has to attach to it. As root, there is no problem, but I prefer to use a normal user.

    – user918546
    7 hours ago











  • As you say, the easiest way is doing as root on both sides. I also do not feel confy doing it.

    – Rui F Ribeiro
    6 hours ago











  • @Bananguin & all sshd_config : PermitTunnel ... Independent of this setting ... device must allow access to the user. so seems possible as non root. what about SELinux/Apparmor ?

    – A.B
    4 hours ago
















1















I would like to connect 2 tap-devices. The tap-device on the remote server is owned by "user". This is my test-command:



# ssh -oTunnel=ethernet -w0:0 user@server


But it does not work, I get this error:



channel 0: open failed: administratively prohibited: open failed


How could I solve this problem?



distro: openSUSE, location: France










share|improve this question









New contributor




user918546 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
















  • 1





    Hi. What distro and location?

    – Time4Tea
    9 hours ago











  • I am little confused. I was about to answer "not" because I remember it once said in the man page that you require root privileges on your client to create a tun or tap device, but I cant find that remark i neither ssh nor ssh_config man pages. So I guess I don't have an answer for you. :-(

    – Bananguin
    7 hours ago






  • 1





    The tap already exists and is owned by the user. ssh just has to attach to it. As root, there is no problem, but I prefer to use a normal user.

    – user918546
    7 hours ago











  • As you say, the easiest way is doing as root on both sides. I also do not feel confy doing it.

    – Rui F Ribeiro
    6 hours ago











  • @Bananguin & all sshd_config : PermitTunnel ... Independent of this setting ... device must allow access to the user. so seems possible as non root. what about SELinux/Apparmor ?

    – A.B
    4 hours ago














1












1








1








I would like to connect 2 tap-devices. The tap-device on the remote server is owned by "user". This is my test-command:



# ssh -oTunnel=ethernet -w0:0 user@server


But it does not work, I get this error:



channel 0: open failed: administratively prohibited: open failed


How could I solve this problem?



distro: openSUSE, location: France










share|improve this question









New contributor




user918546 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I would like to connect 2 tap-devices. The tap-device on the remote server is owned by "user". This is my test-command:



# ssh -oTunnel=ethernet -w0:0 user@server


But it does not work, I get this error:



channel 0: open failed: administratively prohibited: open failed


How could I solve this problem?



distro: openSUSE, location: France







ssh-tunneling privileges






share|improve this question









New contributor




user918546 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




user918546 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 6 hours ago









Rui F Ribeiro

39.5k1479133




39.5k1479133






New contributor




user918546 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 9 hours ago









user918546user918546

62




62




New contributor




user918546 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





user918546 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






user918546 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.








  • 1





    Hi. What distro and location?

    – Time4Tea
    9 hours ago











  • I am little confused. I was about to answer "not" because I remember it once said in the man page that you require root privileges on your client to create a tun or tap device, but I cant find that remark i neither ssh nor ssh_config man pages. So I guess I don't have an answer for you. :-(

    – Bananguin
    7 hours ago






  • 1





    The tap already exists and is owned by the user. ssh just has to attach to it. As root, there is no problem, but I prefer to use a normal user.

    – user918546
    7 hours ago











  • As you say, the easiest way is doing as root on both sides. I also do not feel confy doing it.

    – Rui F Ribeiro
    6 hours ago











  • @Bananguin & all sshd_config : PermitTunnel ... Independent of this setting ... device must allow access to the user. so seems possible as non root. what about SELinux/Apparmor ?

    – A.B
    4 hours ago














  • 1





    Hi. What distro and location?

    – Time4Tea
    9 hours ago











  • I am little confused. I was about to answer "not" because I remember it once said in the man page that you require root privileges on your client to create a tun or tap device, but I cant find that remark i neither ssh nor ssh_config man pages. So I guess I don't have an answer for you. :-(

    – Bananguin
    7 hours ago






  • 1





    The tap already exists and is owned by the user. ssh just has to attach to it. As root, there is no problem, but I prefer to use a normal user.

    – user918546
    7 hours ago











  • As you say, the easiest way is doing as root on both sides. I also do not feel confy doing it.

    – Rui F Ribeiro
    6 hours ago











  • @Bananguin & all sshd_config : PermitTunnel ... Independent of this setting ... device must allow access to the user. so seems possible as non root. what about SELinux/Apparmor ?

    – A.B
    4 hours ago








1




1





Hi. What distro and location?

– Time4Tea
9 hours ago





Hi. What distro and location?

– Time4Tea
9 hours ago













I am little confused. I was about to answer "not" because I remember it once said in the man page that you require root privileges on your client to create a tun or tap device, but I cant find that remark i neither ssh nor ssh_config man pages. So I guess I don't have an answer for you. :-(

– Bananguin
7 hours ago





I am little confused. I was about to answer "not" because I remember it once said in the man page that you require root privileges on your client to create a tun or tap device, but I cant find that remark i neither ssh nor ssh_config man pages. So I guess I don't have an answer for you. :-(

– Bananguin
7 hours ago




1




1





The tap already exists and is owned by the user. ssh just has to attach to it. As root, there is no problem, but I prefer to use a normal user.

– user918546
7 hours ago





The tap already exists and is owned by the user. ssh just has to attach to it. As root, there is no problem, but I prefer to use a normal user.

– user918546
7 hours ago













As you say, the easiest way is doing as root on both sides. I also do not feel confy doing it.

– Rui F Ribeiro
6 hours ago





As you say, the easiest way is doing as root on both sides. I also do not feel confy doing it.

– Rui F Ribeiro
6 hours ago













@Bananguin & all sshd_config : PermitTunnel ... Independent of this setting ... device must allow access to the user. so seems possible as non root. what about SELinux/Apparmor ?

– A.B
4 hours ago





@Bananguin & all sshd_config : PermitTunnel ... Independent of this setting ... device must allow access to the user. so seems possible as non root. what about SELinux/Apparmor ?

– A.B
4 hours ago










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