10-21-2003 04:45 PM - edited 02-20-2020 11:03 PM
Ok, so the alias command was working for about 40 minutes, now it doesn't work anymore. I haven't made any changes.
Now when I ping the FQDN, it times out, and when I try to access the site via browser using FQDN, I get a DNS error. Rebooting the PC and reloading the PIX worked once, but not anymore.
Anyone seen this before?
10-21-2003 07:49 PM
If nothing has changed then it is a wonder why alias command is not working. Would you please confirm with nslookup, what and where is your default DNS server? and what IP address is it giving you for that FQDN.
Thanks
Nadeem
10-21-2003 09:52 PM
My DNS server is outside my LAN on our ISP's LAN.
When I ping http://www.mysite.net, it will sometimes return with the internal IP address. Now, sometimes it works, sometimes it doesn't. Here's an example of it worked for the first ping and then not for each sucessive ping:
C:\>ping http://www.mysite.net
Pinging mysite.net [192.168.1.10] with 32 bytes of data:
Reply from 192.168.1.10: bytes=32 time<1ms TTL=128
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.1.10:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
The server is up and running fine. I get a couple of connections a day, hardly enough to choke it.
Just now, I was able to navigate the site just fine with my browser using the FQDN. Here's my ping results:
C:\>ping www.mysite.net
Pinging mysite.net [192.168.1.10] with 32 bytes of data:
Reply from 192.168.1.10: bytes=32 time<1ms TTL=128
Reply from 192.168.1.10: bytes=32 time<1ms TTL=128
Reply from 192.168.1.10: bytes=32 time<1ms TTL=128
Reply from 192.168.1.10: bytes=32 time<1ms TTL=128
It's like it works a couple of times and then stops. What's up with that?
10-21-2003 09:58 PM
We need to first segregate it from alias issue.
Can u try to do this test with nslookup. and try to find out the result of www.mysite.net. If it always gives you the private IP address, then it is something else we are facing.
10-21-2003 10:16 PM
Here is the nslookup results:
C:\>nslookup http://www.mysite.net
Server: hudson.concentric.net
Address: 207.155.183.72
Non-authoritative answer:
Name: mysite.net
Address: 192.168.1.10
Aliases: http://www.mysite.net
PS: my domain name isn't really mysite.net. By segregate from the alias issue, does this mean the alias is working and it's something else?
10-22-2003 01:50 AM
I tried using the [DNS] option in the static command (via PDM)like this:
static (inside,outside) tcp interface www 192.168.1.10 www dns
But that didn't work. I think I'm using the command wrong. I can't find a link on CCO that explains the [DNS] option very well. LMK if you know one.
thanks!
10-22-2003 02:20 PM
Hi,
If nslookup is giving you the same address every time, then alias is working as it is suppose to.
We need to check other things.
Thanks
Nadeem
10-22-2003 04:35 PM
Ok, what other things?
10-22-2003 09:01 PM
Is it only happening with this server? Ping by FQDN give intermittent problems? Ping by IP always works?
Thanks
Nadeem
10-22-2003 11:51 PM
Yes. Pinging by FQDN usually works (and shows translation to internal IP), but sometimes doesn't.
Ping by internal IP always works. At least I can't remember a time when it didn't work. Ping via internal IP works even when ping by FQDN doesn't work.
Thanks for hanging in there, Nadeem!
10-23-2003 09:17 PM
Ok, so ocassionaly ping by FQDN doesnot work, but at the same time you said that nslookup always gives out private IP address. These two are conflicting information. And we still can't conclude that alias is malfunctioning. In case this is an alias issue then all I can say is that this is a bug in the code. Try running a different code.
Thanks
Nadeem
10-24-2003 01:02 AM
Ok, maybe my PIX is buggy. This should work, huh? I'll try to download a new copy of the OS. Thanks for your help.
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