...
# settings for all hosts HostkeyAlgorithms +ssh-dss
KexAlgorithms +diffie-hellman-group1-sha1
# host specific settings Host cs1k HostName 10.10.10.5 KexAlgorithms +diffie-hellman-group1-sha1 User admin2
...
...
# settings for all hosts HostkeyAlgorithms +ssh-dss
KexAlgorithms +diffie-hellman-group1-sha1
# host specific settings Host cs1k HostName 10.10.10.5 KexAlgorithms +diffie-hellman-group1-sha1 User admin2
...