Hinet Adsl Broadband And "reverse Dns"

[Upcountry]

Hi folks,

Upcountry in Phitsanulok I'm enjoying my new ADSL broadband connection. As others have reported, it does go down from time to time, but it's pretty good, and fast.

My biggest complaint at the moment is a "reverse DNS" problem that has gotten my IP address blacklisted by spamcop. The IP address was assigned to my connection via DHCP.

I had the same problem when I used the T-net dial-up service.

For the first few days, everything was fine, I could send and receive via Eudora, but today I got the first rejection bounce from my US ISP, based on the blacklist.

As I investigated it via the spamcop website and related links, I came upon the following link (munged to remove my IP for this posting):

http://www.spamcop.net/sc?track=xxx.xxx.xxx.xxx

SpamCop v 1.351 © SpamCop.net, Inc. 1998-2004 All Rights Reserved

Parsing input: xxx.xxx.xxx.xxx

host xxx.xxx.xxx.xxx (getting name) no name

Reporting addresses:

[email protected]

I got ready to send an email to "[email protected]", but then I got the bright idea to search google for the email address (perhaps a bot?). Well, it comes up numerous times, with a real name attached to it in more than one case.

I apologize to the person behind this address for posting it here, but it is all over the place anyway. The address in one case is related to spam/abuse.

Before I send my email, I'm wondering if anyone else has had this problem, and has gone this far or further to solve it. If so, what steps did you have to take?

It must be obvious to CAT people that my IP address is Hinet based. I wonder if I've run into a policy to prevent the kind of mail posting I'm doing, and to not provide a reverse DNS lookup of some sort (tricky with DHCP?).

Any thoughts (besides "get a Thai ISP!"? ;-)

Upcountry

[huski]

Hi folks,

Upcountry in Phitsanulok I'm enjoying my new ADSL broadband connection. As others have reported, it does go down from time to time, but it's pretty good, and fast.

My biggest complaint at the moment is a "reverse DNS" problem that has gotten my IP address blacklisted by spamcop. The IP address was assigned to my connection via DHCP.

I had the same problem when I used the T-net dial-up service.

For the first few days, everything was fine, I could send and receive via Eudora, but today I got the first rejection bounce from my US ISP, based on the blacklist.

As I investigated it via the spamcop website and related links, I came upon the following link (munged to remove my IP for this posting):

http://www.spamcop.net/sc?track=xxx.xxx.xxx.xxx

SpamCop v 1.351 © SpamCop.net, Inc. 1998-2004 All Rights Reserved

Parsing input: xxx.xxx.xxx.xxx

host xxx.xxx.xxx.xxx (getting name) no name

Reporting addresses:

[email protected]

I got ready to send an email to "[email protected]", but then I got the bright idea to search google for the email address (perhaps a bot?). Well, it comes up numerous times, with a real name attached to it in more than one case.

I apologize to the person behind this address for posting it here, but it is all over the place anyway. The address in one case is related to spam/abuse.

Before I send my email, I'm wondering if anyone else has had this problem, and has gone this far or further to solve it. If so, what steps did you have to take?

It must be obvious to CAT people that my IP address is Hinet based. I wonder if I've run into a policy to prevent the kind of mail posting I'm doing, and to not provide a reverse DNS lookup of some sort (tricky with DHCP?).

Any thoughts (besides "get a Thai ISP!"? ;-)

Upcountry

your outgoing emails must be triggering a spam block as you may know...using two different ISPs proves that. check your machine's security carefully as it may be zombied as you discribed it was working for a few days. were/are you receiving undelivered messages from recipients you don't know?

here is contact information for your current dsl provider:

inetnum: 202.129.32.0 - 202.129.63.255

netname: CAT

descr: Communication Authority of Thailand,CAT

descr: International Telecommunications Service Provider

country: TH

admin-c: SA51-AP

tech-c: TK38-AP

mnt-by: APNIC-HM

mnt-lower: MAINT-TH-THIX-CAT

changed: [email protected] 20011122

status: ALLOCATED PORTABLE

source: APNIC

person: Suchok Ardhmad

address: Data Comm. Dept.(Internet)

address: CAT Bangkok 10501

address: Thailand

country: TH

phone: +66-2-2374300

fax-no: +66-2-6142270

e-mail: [email protected]

nic-hdl: SA51-AP

mnt-by: MAINT-TH-THIX-CAT

changed: [email protected] 20000818

source: APNIC

person: Tanussit Klaimongkol

address: Data Comm. Dept.(Internet)

address: CAT Bangkok 10501

address: Thailand

country: TH

phone: +66-2-2374300

fax-no: +66-2-5063186

e-mail: [email protected]

nic-hdl: TK38-AP

mnt-by: MAINT-TH-THIX-CAT

changed: [email protected] 20000215

source: APNIC

[Upcountry]

Huski,

Thanks for our suggestions.

I did a search for "how do I find out if my computer is a zombie" in google, and found the following useful URL:

http://www.quepublishing.com/articles/arti...=24374&seqNum=4

I verified that I don't have any zombied ports and so on. Fortunatey, my U.S. ISP "whitelisted" my current IP address, so I'm back in business for the time being.

I wonder how often Hinet will give me a new IP address, even if my modem/router is always on. It shouldn't change as long as I don't leave it off for an extended period of time. If it changed yesterday, I may have inherited an IP that had been misused or zombied by someone else's computer.

On a slightly different subject (perhaps I should start a new thread or go to a differnet forum), I bought a D-Link DSL-500G at a lower price than the router offered by TT&T. It proved tricky to set up, because I couldn't seem to put it on the same subnet as my internal four-port router. Even the helpful technicial for TT&T gave up.

After finally getting the setting info I needed I went home and fooled around until I could get the direct setup working, then plugged in the internal router. I can't ping like I'd like to, but at least it works.

Extra subnetting, etc., certainly doesn't help matters. but at least I have a hardware firewall in addition to software.

Upcountry

[rainman]

Complain to your ISP and tell them not to use SpamCop anymore. These guys are a total disaster. Trust me, i work in the IT industry and there are several things messed up with these guys. First of all, there is no way to get unlisted. Once you're on the blacklist, dont be expected to be removed in less than 1-2 years. Second, they're based in Russia and they don't have contact information.