From: Daniel Kahn Gillmor Date: Mon, 4 Aug 2008 00:32:59 +0000 (-0400) Subject: adding a new bug about the interaction between HostKeyAlias and monkeysphere-ssh... X-Git-Tag: monkeysphere_0.7-1~5 X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=405fb7c3c93c4cef1f08a3edc9ea0d31c7a6df57;p=monkeysphere.git adding a new bug about the interaction between HostKeyAlias and monkeysphere-ssh-proxycommand --- diff --git a/website/bugs/hostkeyalias-confuses-monkeysphere.mdwn b/website/bugs/hostkeyalias-confuses-monkeysphere.mdwn new file mode 100644 index 0000000..4f7df66 --- /dev/null +++ b/website/bugs/hostkeyalias-confuses-monkeysphere.mdwn @@ -0,0 +1,28 @@ +Consider the following snippet in `~/.ssh/config`: + + Host foo + HostKeyAlias bar + +for a host which is *not* participating in the monkeysphere. + +For such a host, when using `monkeysphere-ssh-proxy-command`, the +public keyservers will be queried on each attempted ssh connection +(even after a successful connection). + +This appears to be because: + +* `ssh` itself will write a line to `~/.ssh/known_hosts`, but it will + be labeled with `bar` because of the `HostKeyAlias`. + +* `monkeysphere` won't be able to find any mention of it in the + keyring (it's not in the monkeysphere) + +* `monkeysphere-ssh-proxycommand` won't be able to find it in the + `known_hosts` file because it looks for `foo`, which is never + matched. + +excessive keyserver querying is bad behavior, because it causes delays +for the users, and puts excessive load on the public keyserver +infrastructure. + +How can we resolve this?