diff --git a/config/.ssh/known_hosts.old b/config/.ssh/known_hosts.old
deleted file mode 100644
index afe136c..0000000
--- a/config/.ssh/known_hosts.old
+++ /dev/null
@@ -1,29 +0,0 @@
-[132.252.68.50]:2122 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJ2rX+RpL3RPfk17qflnZ2sf5QekOJfrMedGFah0lySj
-192.168.1.5 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINcw2SSLRyxIhZUPST8BrBmbgVY3IRtKZduLoZowhyTO
-192.168.1.5 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBLi0dyMvhMJ2N86sQOvvHxFAy8cSWbJtAbR/Ap0FDO8bDf4bYkGtsp44vs8Sd8GLE9HA+bRRmzM7gsgfkuBBbyA=
-192.168.1.13 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHOOg2IlW9Cf1ERszajFPWfj8wAkmINsoz09Phwoio7M
-192.168.1.11 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHHBArA6wdOGcvDR+ZaWwDPVMQQVFpRecjzNIBclzXSz
-git.uni-due.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIB/f8VVsjeXT82vK2GX1iU61w5JNLoQUQhOwCocA7Ox5
-git.uni-due.de ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBAgroRZpxHSEmGpyVxJqzQeLi2sCVNON/7zxx5Jd6tzVG8bLvq+AhWpAo1jAqdGGkOmlynH4GoTb9xrnyeg07Mk=
-10.0.0.100 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOmO/pCjdy/dFQ1WWwL4VKo47vJPlx4ZQwl9N5JT1yhA
-10.0.0.100 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBBWnqb2d9cI1MIoc17D8uo7EgRdKkhkoUUY2UtUS9FfF1h5bJwyPfRS+TeSXbBDwuuXfTf7lNG2xYQ0Tpb+0sM0=
-[10.0.0.100]:23231 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKa1sCIExBwatQ1X85p/xFmCY5MBAUDjABLd3fQgdA5n
-gitlab.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAfuCHKVTjquxvt6CM6tdG4SLp1Btn/nOeHHE5UOzRdf
-gitlab.com ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFSMqzJeV9rUzU4kWitGjeR4PWSa29SPqJ1fVkhtj3Hw9xjLVXVYrU9QlYWrOLXBpQ6KWjbjTDTdDkoohFzgbEY=
-192.168.2.190 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOmO/pCjdy/dFQ1WWwL4VKo47vJPlx4ZQwl9N5JT1yhA
-3.122.251.154 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINT9t9WZRy4YwTCix7d86Xo1TBpldmPalLIUyjsG4ex6
-3.122.251.154 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBNxSKje2LHAJLpcfpHRLNxDsZkVSraB4vyhZ4pZfi4jsidN09rqChdEB07ED+Z454YH6R52wRzCUq6NLCBiaW4Y=
-192.168.1.15 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILRE15nvh55iqWo0jsJD+OJCujZO0NE9vsd3iDtcK8zm
-192.168.1.9 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIM2yHTza39ho0yO3X2P/UGGDo3qUb4m4tT+BKotV8qQR
-10.168.68.113 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIFlFGQk/gTzz64QvorDZSzSyGWcN5tgep9VAZwB5usY
-10.168.68.113 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBLxPSE4D3NLhONmWd2WaZNyARkObFc+leUSXnI1CSIFnfFs2DRooJP9O6DH9y2hQLteaECKxZCV3BYcCUOIPjDc=
-[192.168.2.100]:2200 ssh-rsa AAAAB3NzaC1yc2EAAAABAwAAAQEArbpijZwwmnWA5OuyNAJ7roKXmw+4WMWOdMyACi7pOT2NF4PkRYni1NJ3bDiivsiQEX+dFlpL29TyZTM6o/veqph3HtMY74eQcG3IsjjTrPKlQndoXWXh1shtI2Kv8/aljJQKsumiPx8p7K5rdNat2nk0glU0+Ypsw0BlkhMVzEyg7TYE334Zg22pRK6DPqLvM6B9GxJDENBAFgOkRz9AucQNT1kp1ADzr8Ej5ze+Bgli46mBDsBv3MKB8+u/vA/HZpXJPjLatO9RlvS/82ag0Nm+swUluvnviydNnUsifwTa5ci7f9SLqHVxaDULANIZDalxPkhXaVeJaz+4nKooPQ==
-192.168.2.100 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOmO/pCjdy/dFQ1WWwL4VKo47vJPlx4ZQwl9N5JT1yhA
-192.168.1.17 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII+Ox4aKAB4XGtENGIJGtdn0zqImTVVGHJm+xxmt7eRs
-192.168.1.19 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGwt/yA+xeJ8gCsMdCmsAY9yDR5FbtDq7jVyeaRWjCGv
-192.168.1.7 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILr0Ih33Ltl8VTsNGTJuLsHCk9Pxga0nGb/L2nYKmGSU
-192.168.1.7 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOraDeidKkInPbV9OCEuCtOOUqhAOtqWOlolhjyKpWIqqUhNxvho+glBKUFLA6PqEudd6O3aCGujVMntezVArpA=
-github.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOMqqnkVzrm0SdG6UOoqKLsabgH5C9okWi0dh2l9GKJl
-github.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==
-github.com ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBEmKSENjQEezOmxkZMy7opKgwFB9nkt5YRrYMjNuG5N87uRgg6CLrbo5wAdT/y6v0mKV0U2w0WZ2YB/++Tpockg=
-192.168.1.3 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDm5UJ5LRF5qbHGAb4slJPjTIEARfJi2f8LOimHPxm8R