host
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... server they are contacting. This functionality is desirable in
order to facilitate secure connections to servers that host
multiple 'virtual' servers at a single underlying network address ...
... to provide this information to facilitate secure connections to
servers that host multiple 'virtual' servers at a single underlying
network address ...
... NameType name_type;
select (name_type) {
case host_name: HostName;
} name;
} ServerName ...
...
enum {
host_name(0), (255)
} NameType;
...
...
If a single server hosts several domains, then clearly it is
necessary for the owners of each domain ...
... attacker might use the server to
indirectly attack another host that is vulnerable to some security
flaw. It also introduces the possibility of denial of service
attacks ...
... Note that the server may be behind a firewall or otherwise able to
access hosts that would not be directly accessible from the public
Internet. This could exacerbate the potential security and denial of
service ...
... security and denial of
service problems described above, as well as allow the existence of
internal hosts to be confirmed when they would otherwise be hidden.
The detailed security concerns ...