Differences

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--- software:service:ssh [2021/12/31 18:48] – warnaud
+++ software:service:ssh [2025/02/18 08:44] (current) – warnaud
@@ Line 1: / Line 1: @@
+====== SSH ======
+===== sshd_config =====
+After change, restart sshd unit (systemd)\\
+Edit /etc/ssh/sshd_config
+==== no IPv6 ====
+<code perl>
+#AddressFamily any
+AddressFamily inet
+</code>
+==== Root key only ====
+<code perl>
+PermitRootLogin prohibit-password
+#PermitRootLogin yes
+</code>
+==== Users key only ====
+<code perl>
+PubkeyAuthentication yes
+...
+# To disable tunneled clear text passwords, change to no here!
+PasswordAuthentication no
+PermitEmptyPasswords no
+</code>
+==== Check ====
+<code bash> sudo sshd -T | grep -E '^(passwordauthentication|pubkeyauthentication)'
+</code>
+===== .ssh/config =====
+===== examples =====