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Recent content by BlitzCan
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Error Msg: Verifying Forwarding Address
Hi Everyone, I have a client that was using a hosted Exchange server, and just migrated them to an internal Exchange 2003 server. A new profile was added to each user's Outlook 2003. The users have were previously setup with Blackberry Desktop Redirector for their hosted Exchange accounts, and...- BlitzCan
- Thread
- Replies: 0
- Forum: Smartphones
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SMTP port-forwading on PIX 501
Well, now I know I'm not going crazy. I did a bit of testing today, and was able to get http port forwarding working (using the same code as for smtp, just modified for http). Further, I was even able to redirect the external port 91 (picked at random) to the server's port 25, and was then able...- BlitzCan
- Post #8
- Forum: Security, hacker detection & forensics
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SMTP port-forwading on PIX 501
Also, I just realized that I now can't connect to or ping any internal addresses when connected by VPN, which I used to be able to do. Any ideas? Do I need a default gateway for those connections?- BlitzCan
- Post #7
- Forum: Security, hacker detection & forensics
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SMTP port-forwading on PIX 501
Thanks for the affirmation that I'm actually doing this correctly. I've been banging my head on the wall for several days now over this. And yes, you're right, when I telnet to the exchange server from inside the lan, I get the proper ESMTP greeting. Unfortunately we're configured with a /30...- BlitzCan
- Post #6
- Forum: Security, hacker detection & forensics
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SMTP port-forwading on PIX 501
Okay, I'm posting the entire PIX config this time around (cleansed for public viewing, of course). Under this config, I am able to telnet into port 25 of the external IP from another location, but get no responses, and no key echoing. Eventually the connection drops after 30s-1m. Is it...- BlitzCan
- Post #4
- Forum: Security, hacker detection & forensics
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SMTP port-forwading on PIX 501
Although I didn't include it in the config info I posted, I do always turn fixup smtp off, as I know it causes problems with Exchange (and other ESMTP mail servers). On a side note, I've setup the NAT for the entire subnet (172.18.142.0/24), which includes the server's IP. Is it possible that...- BlitzCan
- Post #3
- Forum: Security, hacker detection & forensics
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SMTP port-forwading on PIX 501
Hi Everyone, I asked this question before, but got no replies, so here goes again... I need to configure a PIX 501 to allow inbound SMTP connections to an Exchange server. Simple enough, yes, and in fact I've done this before on a PIX 515E without problems. This pix is also setup to nat the...- BlitzCan
- Thread
- Replies: 8
- Forum: Security, hacker detection & forensics
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port forwarding on primary ip
I thought I should mention that when I try and telnet into the router on port 25 from an external connection, it isn't rejected. Instead, it appears to connect, but then the cursor just sits there, and key inputs dont echo. Eventually, the connection drops though. I'm familiar with the "200...- BlitzCan
- Post #5
- Forum: Security, hacker detection & forensics
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Port forwarding question
Ignore the above... accidentally posted into wrong thread. Sorry! -
Port forwarding question
I thought I should mention that when I try and telnet into the router on port 25 from an external connection, it isn't rejected. Instead, it appears to connect, but then the cursor just sits there, and key inputs dont echo. Eventually, the connection drops though. I'm familiar with the "200... -
Port forwarding question
Not sure how big your network is, but if it's feasible time-wise, you may want to change the internal addresses, preferably non-routable blocks like 192.168.x.x, 172.x.x.x or 10.x.x.x. Cheers! -
port forwarding on primary ip
I'm having a similar problem. I need to configure a PIX 501 to allow inbound SMTP connections to an Exchange server. Simple enough, yes, and I've done this before on a PIX 515E without problems, but can't seem to make it work this time. Here are the pertinent excepts from the config: global...- BlitzCan
- Post #4
- Forum: Security, hacker detection & forensics
