From c751df31ad82a5a7c34f9c5e849fa68642be2926 Mon Sep 17 00:00:00 2001
From: Marty Oehme <marty.oehme@gmail.com>
Date: Mon, 5 Apr 2021 15:04:27 +0200
Subject: [PATCH] ssh: Add simple ssh configuration module

Added configuration module for ssh client.
Sets some basic settings and sets a general structure for the ssh
folder:

```
.ssh/
  |- config
  |- conf/
  |---|- config.ssh
  |----- hosts.ssh
  |- keys/
  |---|- id_*
  ------ id_*.pub
```

Config only refers to the files situated in `conf/` directory, while any
`hosts.ssh` configuration redirects to the correct keyfiles lying in
`keys/`.
Actual settings can be configured in `config.ssh` and this file is also
committed to versioning, whereas keys and hosts are not.
---
 ssh/.gitignore           | 8 ++++++++
 ssh/.ssh/conf/config.ssh | 5 +++++
 ssh/.ssh/config          | 2 ++
 3 files changed, 15 insertions(+)
 create mode 100644 ssh/.gitignore
 create mode 100644 ssh/.ssh/conf/config.ssh
 create mode 100644 ssh/.ssh/config

diff --git a/ssh/.gitignore b/ssh/.gitignore
new file mode 100644
index 0000000..71b2bef
--- /dev/null
+++ b/ssh/.gitignore
@@ -0,0 +1,8 @@
+### SSH ###
+**/.ssh/id_*
+**/.ssh/*_id_*
+
+**/.ssh/keys/
+**/.ssh/**/hosts.ssh
+**/.ssh/known_hosts
+**/.ssh/authorized_keys
diff --git a/ssh/.ssh/conf/config.ssh b/ssh/.ssh/conf/config.ssh
new file mode 100644
index 0000000..1768d6c
--- /dev/null
+++ b/ssh/.ssh/conf/config.ssh
@@ -0,0 +1,5 @@
+# Send a keepalive package every 15 seconds without data
+ServerAliveInterval 15
+
+# conserve some bandwidth at the cost of processing power
+Compression yes
diff --git a/ssh/.ssh/config b/ssh/.ssh/config
new file mode 100644
index 0000000..2d4b429
--- /dev/null
+++ b/ssh/.ssh/config
@@ -0,0 +1,2 @@
+Include ~/.ssh/conf/config.ssh
+Include ~/.ssh/conf/hosts.ssh