mod_client_management: Allow revoking a specific client version Could be useful in case of a security issue affecting a particular version. Even if in that case, the more likely use case is revoking all older versions except the fixed one(s), this can be done with a loop or improved later.

This module lets you block connections to remote servers at the s2s
level.

``` {.lua}
modules_enabled = {
    -- other modules --
    "s2s_blacklist",

}
s2s_blacklist = {
    "proxy.eu.jabber.org",
}
```