Content differences:
--- /etc/ssh/ssh_known_hosts.orig
+++ /etc/ssh/ssh_known_hosts
@@ -1720,8 +1720,6 @@
ncredir2002.codfw.wmnet,ncredir2002,10.192.16.143,2620:0:860:102:10:192:16:143 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBP7U+4m2Fg0sypWuWQd5BObDvlwqIq/ea1JD/3eHfRRun34gm7+13JyJJ0ZuM/XLLmZIyiBTcVzfVUvb2M0sjnI=
ncredir3005.esams.wmnet,ncredir3005,10.80.2.3,2a02:ec80:300:103:10:80:2:3 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBM2z7AxXpYZ0bwBiDt5mIBBxyQuu0D97wLOrHeFaN3Nab3tIeJuDKjeHeZn/ASYspWNcILk64wlRT1TvzdRqls4=
ncredir3006.esams.wmnet,ncredir3006,10.80.2.7,2a02:ec80:300:103:10:80:2:7 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOmEs1xyHsS0sxtctd6xCGIKhkS3dBqneqsY5df7hzavzvjxsuwm02ejKOlhqVg8bsjjJGEEwt+dq/g+y59SKeE=
-ncredir5001.eqsin.wmnet,ncredir5001,10.132.0.31,2001:df2:e500:101:10:132:0:31 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBKlawUH21KD6XxZv5zJQVXFdtFwl1LIGCvPzn8e8488yOUgLNHr20YDqXX1OaTwV3azvUwjENtLSQerFg1Iji7Q=
-ncredir5002.eqsin.wmnet,ncredir5002,10.132.0.32,2001:df2:e500:101:10:132:0:32 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBEnS4qFkfjYcTRcAgctGkwicvfHh1Ny8JtoApgIyDz73CJ+fsz0K1NN9R+oVbiOqpkwMlLXOb/lW7wkYvGBIIGo=
ncredir6001.drmrs.wmnet,ncredir6001,10.136.0.20,2a02:ec80:600:101:10:136:0:20 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBKrAuBPhXBTP4OfSl9fE/XiZcjf23+Zk2/AfwE5oWg8jOw0WmkzOtPmYrgoErpdKVgAiHYUmB1qp6U9gnapWZmQ=
ncredir6002.drmrs.wmnet,ncredir6002,10.136.1.21,2a02:ec80:600:102:10:136:1:21 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBLdyq23ESCL+KQgJDnHhKe20OQvzjm5jQxRizENLz/EIuDkxP4jHte7XwUKVTs3gGkFP69qDNcfAHrkvP2CebQ4=
ncredir7003.magru.wmnet,ncredir7003,10.140.2.3,2a02:ec80:700:103:10:140:2:3 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBIotet3+0LXpe/Ctju8RKXc1kmDopHNUOpuujtdUmWtVy+fCTm964MC9Ej7QfxpDA2tyf1Zl4izjLcKAF2QVYYo=
@@ -1987,7 +1985,6 @@
testlabs-nfs-2.testlabs.eqiad1.wikimedia.cloud,testlabs-nfs-2,172.16.18.74,2a02:ec80:a000:1::12d ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOM/C5eOOa/iDAajGbcPTSihBG6vHmReaXp0cdwsVYy0JBu+lEjwVM+zD3jywlikc8n8RWScYANsx878xUKmsQI=
testreduce1002.eqiad.wmnet,testreduce1002,10.64.32.43,2620:0:861:103:10:64:32:43 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBCxCTKWi3dUIgRC4tCb9QhMIkW6bDPU2k0tSc0DHHHe+Mdu1JRtPEEfxaoFuzm5u/zAe+b90Q6DmYTWbTU4Tkbc=
testreduce-1.mobileappsperformance.eqiad1.wikimedia.cloud,testreduce-1,172.16.16.252,2a02:ec80:a000:1::37e ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBNZwtIec5LyAjaHHQK8/rtuTTuvwCYY4XH11umNllJMkDB2klxyZOxXEVy9T/93wSsaPTvgqiwWZK3ni1FMlaGI=
-testvm2002.codfw.wmnet,testvm2002,10.192.0.136,2620:0:860:101:10:192:0:136 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOrdU4i3kIIMA0tv8FgiQN/3eq8MH54hBShIV0pgBs/tMrjXK6vECE4U54dBLL/XKKqopqXHJk1aGlVloBmi304=
testvm2005.codfw.wmnet,testvm2005,10.192.0.38,2620:0:860:101:10:192:0:38 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBKJqzjVEuLgn9uiyWlJvjGj9RA//zoYvFP4eD4vXn8bVh/+ECIq3nNKcJXkzz5O/EeX98BQ4sdLAWK7c0/vtGZY=
testvm2007.codfw.wmnet,testvm2007,10.192.24.5,2620:0:860:140:10:192:24:5 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBPdox4Y9pwhSmzDEhWzpUQTb3HCAbdBE76gqacK+IGuORXT2tiwwR7sZky5R5W1Ci9WsssKeahoOsJCISpg1qyg=
testvm2008.wikimedia.org,testvm2008,208.80.152.130,2620:0:860:5:208:80:152:130 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBKYpjZ/reI1KGKObKp9AA0D2yLfTLCgs06r8rrod+icEzRkXsa+xP/uUGYRpeR6daidMMJtVKyUivelOVQyVegc=