From 0f9f44654708e4fde2f52c52f717d061b5e458fa Mon Sep 17 00:00:00 2001 From: Colin Watson Date: Tue, 7 Oct 2014 13:22:41 +0100 Subject: Restore TCP wrappers support Support for TCP wrappers was dropped in OpenSSH 6.7. See this message and thread: https://lists.mindrot.org/pipermail/openssh-unix-dev/2014-April/032497.html It is true that this reduces preauth attack surface in sshd. On the other hand, this support seems to be quite widely used, and abruptly dropping it (from the perspective of users who don't read openssh-unix-dev) could easily cause more serious problems in practice. It's not entirely clear what the right long-term answer for Debian is, but it at least probably doesn't involve dropping this feature shortly before a freeze. Forwarded: not-needed Last-Update: 2019-06-05 Patch-Name: restore-tcp-wrappers.patch --- sshd.8 | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'sshd.8') diff --git a/sshd.8 b/sshd.8 index fb133c14b..57a7fd66b 100644 --- a/sshd.8 +++ b/sshd.8 @@ -873,6 +873,12 @@ the user's home directory becomes accessible. This file should be writable only by the user, and need not be readable by anyone else. .Pp +.It Pa /etc/hosts.allow +.It Pa /etc/hosts.deny +Access controls that should be enforced by tcp-wrappers are defined here. +Further details are described in +.Xr hosts_access 5 . +.Pp .It Pa /etc/hosts.equiv This file is for host-based authentication (see .Xr ssh 1 ) . @@ -975,6 +981,7 @@ The content of this file is not sensitive; it can be world-readable. .Xr ssh-keygen 1 , .Xr ssh-keyscan 1 , .Xr chroot 2 , +.Xr hosts_access 5 , .Xr login.conf 5 , .Xr moduli 5 , .Xr sshd_config 5 , -- cgit v1.2.3