[K12OSN] Blocked net access
Nakashima
pnakashi at k12.hi.us
Sat Jan 13 23:56:42 UTC 2007
On Saturday, January 13, 2007, at 01:14 AM, Nakashima wrote:
>> John Lucas wrote:
>>> Yes. Unless changes are made, your LTSP server is not set up as a
>>> router and won't pass packets from the "inside" network to the
>>> "outside" network. The terminals run processes on the server, which
>>> has access to both networks, but non-terminals attached to the
>>> "inside" do not have access to the outside. To keep the PCs on the
>>> inside and allow them out, you need to make several changes:
>>> - turn on packet forwarding on the server (make it a router)
>>> - give the server's inside address as a router in the DHCP stanza
>>> for the PCs
>>> - make sure you don't have an IPTables rule preventing forwarding
>>> - make sure your perimeter router knows the route back to the
>>> inside network
>>> - make sure your perimeter firewall allows the inside network to
>>> forward
>>> This is all basic TCP/IP networking 101 and is not specific to LTSP.
>>
>> K12LTSP should come with a script to do all of this, though. Try
>> service nat on
>> to start it and
>> chkconfig nat on
>> to make it start automatically at boot up. Your other routers
>> shouldn't
>> need to know about the eth0 address range because outgoing packets
>> nat to the eth1 address. I thought this was normally set up during
>> a default install.
>>
>> --
>> Les Mikesell
>> lesmikesell at gmail.com
>
> Thanks John, Dan, and Les,
> I did the following in Terminal
>
> service nat start
> chkconfig nat on
>
> No luck.
> I can ping addresses on the outside from an OS X Mac, but can't get
> to the web with a browser.
> I'm not very technical, so any further help you can provide will be
> greatly appreciated.
> --Peter
I received a tip to check the DNS settings. I will be doing that on
Tuesday.
Thanks :-)
--Peter
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