[Samba] ntlm_auth and high load fault

Vitaly Protsko villy at sft.ru
Thu Sep 1 11:40:56 GMT 2005


Here is situation:

1. We decide to switch on "Auto proxy config" in our network (you know,
wpad.example.com, etc.)
2. After that there are lot of robots (checking for new versions, upgrading,
esp. M$ upg) on client
   computers start trying to fetch resources, but w/o any authentication (or
I dont understand what is going on :).
3. Result is unxepected: alot of "requests in queue" to ntlm_auth, because
of this squid restarts every
    2 min when in morning computers are going up. :(

Tech info:

samba-3.0.20, no patches
krb5-1.3.1 (MIT)
ntlm_auth from samba pack

Joined to 2k3 AD.

My ideas about why this happens are exausted (all of them are unproductive
ANYBODY, please, if you have similar, or heard about this situation, please
let me know.
May be some ideas about fighting against it?

Thnx in advance.

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