bm35ent strange problem
Moti Graf
>
>
> here is the situation:
>
> customer has several nw servers (4.11, 5.0 and 5.1)
> the customer is in a trend to upgrade all the servers to 5.1 e-dir with
> latest patches.
>
> one of the servers, is called BORDER with is a nw5.1 sp3 with ds7 with
> BM3.5 ENT with lastest patches (including field patches).
> the server also host DHCP and DNS services.
>
> the sevrer has 3 NIC's:
>
> 1 to local net, 1 to router and 1 to DMZ.
>
> about 1000 users use the BM to browse to the internet and the DMZ.
> the BM also host a VPN, so outsiders can access the local net via VPN.
>
> the BM is working fine most of the time.
>
> the problem is, that the TELNET feature is been disabled after a few
> hour/day, from the server bounce.
> when it happens, the users can still browse the internet and the DMZ,a nd
> also VPN (from out to in) is working, just TELNET is not (any port).
> the customer is using the telnet feature to connect to finance sites.
>
> when the telnet fails, if i take down the BM modules, ant try to telnet -
> no luck (from WS or from a telnet.nlm on the server)
> if i also take the filters down, browsing is still working, but telnet is
> not..
>
> if i bounce the server (even only down, w/o power off), the telnet returns
> for a few hours/day, and the cicle returns.
>
> i even took the server disks and put the on another machine with other lan
> cards (intel instead of 3com), but no luck.
>
> further, after i have applied nw51sp3 + post (tcpip and filesys), when i
> do a VPN to the server (from outside) the server makes an abend
> (recorded), but still continue to respone to browsing, telnet and vpn
> (like nothing happend). with nw51sp2a, this abend did not occured.
>
> we even change the behaviuor of the aclcheck, so it will check the NDS
> only when the the server bounce - no luck.
best regrads,
moti graf