Why `ssh -o MACs=algoname host` success after disable the MAC algorithm in sshd?

Solution Verified - Updated 2026-01-19T02:37:02+00:00 -

Issue

After disabling HMAC-SHA1 in sshd, ssh -o MACs=hmac-sha1 host successfully connects to the host. Is the configuration being ignored?
```
$ ssh -o MACs=hmac-sha1 host
```

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