Content differences:
--- /etc/ssh/ssh_known_hosts.orig
+++ /etc/ssh/ssh_known_hosts
@@ -316,6 +316,7 @@
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ci-components.mediawiki-quickstart.eqiad1.wikimedia.cloud,ci-components,172.16.5.143,fe80::f816:3eff:fe0d:cafd ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBIjpqghutEhrZJDZrHXCyLoRkOyDIfSap7TU9BcNOVvY99HGduuzix/E0VA/TOW1GJrEsZeiAl7Uv7DUmk8ojoU=
ci-p1.ciperformance.eqiad1.wikimedia.cloud,ci-p1,172.16.17.108,2a02:ec80:a000:1::2a ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBA4lBgZunGYHIBvnoyOuK/gFDougDWgx13eC9dBik8HGKavNcKDkVsYFs4WAeVlHesjPiLl6t78uoT1hKc4wR1g=
+ci-p2.ciperformance.eqiad1.wikimedia.cloud,ci-p2,172.16.16.245,2a02:ec80:a000:1::14 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBHKbHkQPaeEchz1UWiMu9E2XRbx/SXNPHTStMCjLnwdkNNdZ91B62kaUB1QVN7efkTmv1I/Uh3iXsxIuUBSKhyU=
cirrus-integ4.search.eqiad1.wikimedia.cloud,cirrus-integ4,172.16.0.75,fe80::f816:3eff:fe6d:8b84 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBMpZcKEP+CQ1TAZzBe05C1TXBm0XL38AnqUV1BTGfAEkwYaVevIU6XgDdOh+yPsoiBi67MQwvJ+7tYUDtBqGKCI=
cirrussearch1068.eqiad.wmnet,cirrussearch1068,10.64.0.72,2620:0:861:101:10:64:0:72 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJMKM7PP+oV+pdGQsZMYzQnnfDHenrZrrakI/herP5+mh1G3z0XQ07A8IgKSa1x6bvbklCsl7va2QzyHGSa0uOs=
cirrussearch1069.eqiad.wmnet,cirrussearch1069,10.64.0.73,2620:0:861:101:10:64:0:73 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOExdn/414DqH/y6Lst5M9OH9ixfXYyw+0jKb84sWNgNr+mgnC6TaR2BLGwoEPbCfRZ8+UnsSJy3tBgfJpyf/9M=
@@ -1790,6 +1791,7 @@
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networktests-vxlan-ipv4only-fip.testlabs.eqiad1.wikimedia.cloud,networktests-vxlan-ipv4only-fip,172.16.11.7,fe80::f816:3eff:fe38:a227 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBNQNRhuhmL2Jhm+bGmuHmIvsPHsoDFD8KEUqauyK/7jc62WQe+CVlVhIBMvvrV5BVGSi1srYaBErCfz4hmoZzcA=
networktests-vxlan-ipv4only.testlabs.eqiad1.wikimedia.cloud,networktests-vxlan-ipv4only,172.16.10.110,fe80::f816:3eff:fe2a:2114 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFZ3ejHswKywiPjOuYaSbtnZ9f4M+HKZZtNJT3NN2L+qb+XuAqaItfnqqX6InSTQ/X7EzbgEJsLnWV+VgxVMh40=
+newbookworm.testlabs.eqiad1.wikimedia.cloud,newbookworm,172.16.19.135,2a02:ec80:a000:1::153 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBCvdWVKBkYFuWf5BI7jhwa2KPvsj5kzpw21Vz6qSClRdenu3ZBw8YjWe5lBIW6GC9S6wQw5WzdFg32w8beyOeYE=
newtrixie.testlabs.eqiad1.wikimedia.cloud,newtrixie,172.16.19.90,2a02:ec80:a000:1::439 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOUI3xmVENMxQWFIG27BgCtIq9yCaOoZnU1FkI/r9rAdkykIF7JMoZLXdc6o7OiBddJueamR0/eHUNwNCInJ58w=
nfs-client-2.testlabs.eqiad1.wikimedia.cloud,nfs-client-2,172.16.19.74,2a02:ec80:a000:1::199 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBIELJuiWNREB7YXnat8Hn3f4zonIh6i9zJwAKFmztlZjwVBiIPZACUK93lTNR2rXA0MnZSHrMG/sdrVXBddN2oY=
node1001.zuul3.eqiad1.wikimedia.cloud,node1001,172.16.5.183,fe80::f816:3eff:feb8:a298 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBEIMP/S9koZWmBT4ZLliEOrU6ORYNJzxb+ZDssdS7lH3TIyETVVDC9/NHdQWAVpfwmVnER7TZLSto+dogwGZjKs=