From: Jakub Czajka <jakub@ekhem.eu.org>
Date: Sun, 25 Sep 2022 19:35:16 +0000 (+0200)
Subject: [sshd] Disable reverse DNS checks.
X-Git-Url: https://git.ekhem.eu.org/?a=commitdiff_plain;h=caad6042274f74894ad3f2ae1e2e6203155e9f01;p=server.git

[sshd] Disable reverse DNS checks.

By default `sshd` compares the IP address of the client with the
result of a reverse DNS query for that address. However, many clients
do not have reverse DNS records. This commit disables the check.
---

diff --git a/sshd/sshd_config b/sshd/sshd_config
index 244f573..6849906 100644
--- a/sshd/sshd_config
+++ b/sshd/sshd_config
@@ -99,7 +99,7 @@ PrintMotd no
 #Compression delayed
 #ClientAliveInterval 0
 ClientAliveCountMax 1
-#UseDNS no
+UseDNS no
 #PidFile /var/run/sshd.pid
 #MaxStartups 10:30:100
 #PermitTunnel no