diff options
| author | Guilhem Moulin <guilhem@fripost.org> | 2014-04-16 19:39:36 +0200 |
|---|---|---|
| committer | Guilhem Moulin <guilhem@fripost.org> | 2015-06-07 04:28:07 +0200 |
| commit | 77ec2e80ad7085fb5f35a4624ac16bb65d580ca8 (patch) | |
| tree | 8927703d2a499296feac693f1cc0ff40f578959f | |
| parent | fb7da2da82b4d90f23d6270d2e64823a8ce6d4b0 (diff) | |
Restrict SSH login to members of the 'ssh-login' group.
Don't use the group 'ssh', as it's automatically created by
openssh-client's postinstall hook, and is used for ssh-agent's setgid.
| -rw-r--r-- | preseed.cfg | 1 | ||||
| -rwxr-xr-x | src/fripost-postinst-udeb/finish-install.d/07fripost | 4 | ||||
| -rw-r--r-- | src/fripost-postinst-udeb/sshd_config | 2 |
3 files changed, 5 insertions, 2 deletions
diff --git a/preseed.cfg b/preseed.cfg index 6428063..c9ecbb9 100644 --- a/preseed.cfg +++ b/preseed.cfg @@ -80,7 +80,6 @@ d-i passwd/user-fullname string Guilhem Moulin d-i passwd/username string guilhem # TODO: should be generated by preseed.sh: echo ... | mkpasswd -s -m SHA-512 d-i passwd/user-password-crypted password $6$QjLeZdW1O$9VymVDc5q6NctEylAqObvmP4S7FXk1ckCPaHua0JaiFSaTeTKoWxaP7bQoUWvzCPDY23Xqthg87QDBbaCY9BP0 -d-i passwd/user-default-groups string ssh ################################################################################ diff --git a/src/fripost-postinst-udeb/finish-install.d/07fripost b/src/fripost-postinst-udeb/finish-install.d/07fripost index 2dfb98b..6b5d7b1 100755 --- a/src/fripost-postinst-udeb/finish-install.d/07fripost +++ b/src/fripost-postinst-udeb/finish-install.d/07fripost @@ -286,3 +286,7 @@ progress "Copying authorized_keys to ~$user/.ssh" [ -d /target"$home/.ssh" ] || mkdir -m0700 /target"$home/.ssh" copy_authorized_keys $import/authorized_keys /target"$home/.ssh/authorized_keys" chown -R "$ugid" /target"$home/.ssh" # Probably 1000:1000, but who knows + +# Enable ssh login for "$user" +/bin/in-target /usr/sbin/addgroup --system ssh-login +/bin/in-target /usr/sbin/adduser "$user" ssh-login diff --git a/src/fripost-postinst-udeb/sshd_config b/src/fripost-postinst-udeb/sshd_config index e81b272..4281ad1 100644 --- a/src/fripost-postinst-udeb/sshd_config +++ b/src/fripost-postinst-udeb/sshd_config @@ -16,7 +16,7 @@ LogLevel INFO # Authentication: LoginGraceTime 120 PermitRootLogin no -AllowGroups ssh +AllowGroups ssh-login StrictModes yes PubkeyAuthentication yes |