Inaccessible Page

dlorde · May 22, 2010, 20:55:51

There is one web page that keeps giving me 'Page Not Available' errors when I browse to it:

http://confluence.jetbrains.net/display/IDEADEV/Maia+EAP

All the other web sites I use are fine, and this one used to be available not so long ago. Other people tell me they can access it, no problem.

Is it my setup or IDNET (i.e. can people here access it) ?

Tina · May 22, 2010, 20:57:58

I can access it just fine

Lance · May 22, 2010, 21:08:09

Works fine for me too. Have you cleared your history, flushed your DNS or tried a different brower. Also, are you using opendns or IDNet DNS?

dlorde · May 22, 2010, 21:32:21

I'm using IDNET DNS. I've tried a different browser, I haven't flushed my history (I want to keep it), and I haven't flushed my DNS (how?).

Ray · May 22, 2010, 21:38:43

Fine here as well.

Bill · May 22, 2010, 21:47:28

I can't reach it (or ping it) on IDNet DNS.

Bill · May 22, 2010, 21:53:06

Hmm, can't reach it with OpenDNS either

Lance · May 22, 2010, 21:59:22

It's odd. You've a IP address from a different block to dlorde so its not a simple IP address ban.

dlorde · May 22, 2010, 22:00:51

Curiouser and curiouser... at least it's not just me. I just tried via my Windows Home Server and couldn't get to it from there. Although I can reach it OK from my PC at work (over VPN).

Bill · May 22, 2010, 22:04:12

@Lance- what's the IP address of the site? If we can't reach it that way, something is very odd...

Steve · May 22, 2010, 22:21:17

There something odd I can access the site but I can't get a DNS lookup

Bill · May 22, 2010, 22:23:07

How about a ping, that should give it?

Steve · May 22, 2010, 22:27:35

I can't ping it Mac network utility cannot resolve it either,same with traceroute but I can access the website via IDNet and OpenDNS how odd.Thats why I tried a DNS lookup elsewhere with no result.

Bill · May 22, 2010, 22:30:03

Weird... one for the network support guys I suspect. I'm definitely out of my depth!!!

drummer · May 22, 2010, 23:11:05

Loaded fine for me and pings time out but managed to locate it as 184.73.234.255.

Bill · May 22, 2010, 23:15:04

Can't reach that either... strange or what?

edit- Domain Tools says: IP Location: United States Seattle Amazon.com Inc

DorsetBoy · May 23, 2010, 07:27:19

It is a Russian site on a Russian server. IP address is 89.163.94.178

At 07:20 today it is loading fast, Registration details and stats below.

QuoteRegistrant:
Dmitriev, Sergey
ATTN JETBRAINS.NET
care of Network Solutions
PO Box 459
Drums, PA. US 18222

Domain Name: JETBRAINS.NET

Administrative Contact, Technical Contact:
Dmitriev, Sergey
ATTN JETBRAINS.NET
care of Network Solutions
PO Box 459
Drums, PA 18222
US
570-708-8780

Record expires on 09-Nov-2019.
Record created on 09-Nov-2001.

Domain servers in listed order:

NS1.INTELLIJ.NET 213.182.181.98
NS3.INTELLIJ.NET 174.143.250.23
NS4.INTELLIJ.NET 89.163.94.178

Server Type:
nginx
IP Address:
89.163.94.178 Whois | Reverse-IP | Ping | DNS Lookup | Traceroute
IP Location:
- Saint Petersburg City - St. Petersburg - Webplus Ltd
Response Code:
200
Domain Status:
Registered And Active Website

IP Location:     Russian Federation St. Petersburg Webplus Ltd
Resolve Host:    mail2.intellij.net
IP Address:    89.163.94.178

inetnum: 89.163.94.0 - 89.163.94.255
netname: WEBPLUS-ADSL-94
descr: WEBPlus Ltd.
descr: St.Petersburg
descr: for abuse use
descr:
country: RU
admin-c: MICK-RIPE
tech-c: MICK-RIPE
tech-c: TAT-RIPE
status: ASSIGNED PA
mnt-by: AS6690-MNT
remarks: <INFRA-AW>
source: RIPE # Filtered

person: Michael V. Vasiliev
address: JSC Metrocom,29, Odoevskogo
address: 29, Odoevskogo
address: 199155, Saint-Petersburg
address: Russia
phone: +7 812 718-3211
fax-no: +7 812 718-3222
e-mail:
nic-hdl: MICK-RIPE
source: RIPE # Filtered

person: Tatiana A. Shumilova
address: ZAO Web Plus, Kolomenskaya, 29
address: Saint-Petersburs, 191119
phone: +7 812 3269020
fax-no: +7 812 3269029
e-mail:
mnt-by: AS6690-MNT
nic-hdl: TAT-RIPE
source: RIPE # Filtered

route: 89.163.0.0/17
descr: RU-WEBPLUS-20060216
origin: AS6690
mnt-by: As6690-MNT
source: RIPE # Filtered

C:\Users\ Ping -n 10 89.163.94.178

Pinging 89.163.94.178 with 32 bytes of data:
Reply from 89.163.94.178: bytes=32 time=50ms TTL=56
Reply from 89.163.94.178: bytes=32 time=50ms TTL=56
Reply from 89.163.94.178: bytes=32 time=53ms TTL=56
Reply from 89.163.94.178: bytes=32 time=51ms TTL=56
Reply from 89.163.94.178: bytes=32 time=50ms TTL=56
Reply from 89.163.94.178: bytes=32 time=51ms TTL=56
Reply from 89.163.94.178: bytes=32 time=51ms TTL=56
Reply from 89.163.94.178: bytes=32 time=52ms TTL=56
Reply from 89.163.94.178: bytes=32 time=52ms TTL=56
Reply from 89.163.94.178: bytes=32 time=51ms TTL=56

Ping statistics for 89.163.94.178:
Packets: Sent = 10, Received = 10, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 50ms, Maximum = 53ms, Average = 51ms

zappaDPJ · May 23, 2010, 07:31:16

It's working for me.

Gary · May 23, 2010, 07:42:06

I never trust Russian servers

Glenn · May 23, 2010, 08:15:52

Quote from: dlorde on May 22, 2010, 21:32:21
I'm using IDNET DNS. I've tried a different browser, I haven't flushed my history (I want to keep it), and I haven't flushed my DNS (how?).

1. On your local machine, open a command prompt.
2. Within the prompt, type ipconfig /flushdns

dlorde · May 23, 2010, 10:22:28

Quote from: Glenn on May 23, 2010, 08:15:52
1. On your local machine, open a command prompt.
2. Within the prompt, type ipconfig /flushdns

Thanks, but it made no difference.

The URL is of a safe site - it's the download page of the latest beta release (Early Access Program) for the JetBrains IntelliJ IDEA Java development environment - (JetBrain's IntelliJ is the leading commercial Java development environment).

For some odd reason it has become inaccessible to some people.

Rik · May 23, 2010, 10:53:15

Another 'fine here' I'm afraid.

Bill · May 23, 2010, 10:53:39

Quote from: DorsetBoy on May 23, 2010, 07:27:19
It is a Russian site on a Russian server. IP address is 89.163.94.178

At 07:20 today it is loading fast, Registration details and stats below.

Still not working here this morning.

Can't reach it on that IP either, but the address bar immediately shows http://confluence.jetbrains.net/ so RDNS working?

Rik · May 23, 2010, 10:55:13

Odd. It certainly doesn't appear to be directly related to IP address.

Bill · May 23, 2010, 11:02:17

I've put a request in on Free Chat to see who else can/can't reach it.

Gary · May 23, 2010, 11:02:37

It works fine here as well

Rik · May 23, 2010, 11:03:34

Thanks, Bill.

Gary · May 23, 2010, 11:08:19

Maybe the Russian mafia are now collecting IP addresses as we try to visit that page

Rik · May 23, 2010, 11:09:23

Proxy time!

Bill · May 23, 2010, 11:12:04

A few replies- OK on NTL Cable, EasyNet and Be, not on BT.

Looks like a routing problem?

Gary · May 23, 2010, 11:12:07

Quote from: Rik on May 23, 2010, 11:09:23
Proxy time!

a fine idea, although I didn't see the r when I first read that

Rik · May 23, 2010, 11:13:12

Bill · May 23, 2010, 11:13:22

OK on Plusnet and TalkTalk (That's a switch!)

Rik · May 23, 2010, 11:13:54

Quote from: Bill on May 23, 2010, 11:12:04
Looks like a routing problem?

I'd expect that to affect everyone, though, Bill.

Bill · May 23, 2010, 11:17:18

Quote from: Rik on May 23, 2010, 11:13:54
I'd expect that to affect everyone, though, Bill.

Sorry, I meant "A problem with a router", that only a few people are going through.

I don't know much about routing

Rik · May 23, 2010, 11:18:40

Me neither.

Rik · May 23, 2010, 11:58:49

I've alerted support to this thread.

Bill · May 23, 2010, 12:36:54

Thought I'd already posted this...

traceroute confluence.jetbrains.net
traceroute to confluence.jetbrains.net (184.73.234.255), 64 hops max, 52 byte packets
1 ec2-184-73-234-255.compute-1.amazonaws.com (184.73.234.255) 0.807 ms 0.342 ms 0.317 ms

Where did that IP come from, and what happened to the steps in the middle, eg my router?

If I use the IP given earlier (that resolves correctly in the address bar):

traceroute 89.163.94.178
traceroute to 89.163.94.178 (89.163.94.178), 64 hops max, 52 byte packets
1 (192.168.1.1) 0.764 ms 0.321 ms 0.244 ms
2 telehouse-gw4-lo2.idnet.net (212.69.63.99) 27.013 ms 26.675 ms 26.785 ms
3 telehouse-gw3-g0-1-400.idnet.net (212.69.63.243) 175.559 ms 153.491 ms 53.871 ms
4 te312-1188.brc4.spb.obit.ru (79.142.92.100) 64.995 ms 65.759 ms 66.351 ms
5 gw-cust-webplus.obit.ru (217.79.3.74) 70.707 ms 64.618 ms 65.336 ms
6 195.131.253.3 (195.131.253.3) 65.516 ms 65.093 ms 65.039 ms
7 gw.intellij.net (195.5.138.42) 66.450 ms 65.791 ms 66.252 ms
8 * * *

Rik · May 23, 2010, 12:40:27

I get this, Bill:

tracert 89.163.94.178

Tracing route to mail2.intellij.net [89.163.94.178]
over a maximum of 30 hops:

1 2 ms <1 ms 1 ms 192.168.1.254
2 14 ms 15 ms 14 ms telehouse-gw4-lo2.idnet.net [212.69.63.99]
3 13 ms 11 ms 13 ms telehouse-gw3-g0-1-400.idnet.net [212.69.63.243]

4 53 ms 53 ms 51 ms te312-1188.BRC4.spb.obit.ru [79.142.92.100]
5 51 ms 51 ms 51 ms gw-cust-webplus.obit.ru [217.79.3.74]
6 52 ms 51 ms 51 ms 195.131.253.3
7 53 ms 53 ms 52 ms gw.intellij.net [195.5.138.42]
8 55 ms 55 ms 53 ms mail2.intellij.net [89.163.94.178]

Trace complete.

DorsetBoy · May 23, 2010, 13:08:10

Robtex makes interesting reading for this site >> http://www.robtex.com/dns/confluence.jetbrains.net.html#summary

Rik · May 23, 2010, 13:19:01

Weirder and weirder.

DorsetBoy · May 23, 2010, 13:26:29

Quote from: Rik on May 23, 2010, 13:19:01
Weirder and weirder.

Especially as the analysis shows zero errors. I can access the site from either IP (Russia or USA). The ping/tracert timing out is no issue as they have probably disallowed them to prevent DDOS issues. The Amazon AWS server is used for dns and is working correctly.

Why some people cannot access it is very odd.

Bill · May 23, 2010, 13:34:00

Quote from: DorsetBoy on May 23, 2010, 13:26:29
Why some people cannot access it is very odd.

Still a few replies coming in on tbb; seems to be the same for various ISPs, not just IDNet.

dlorde · Jun 20, 2010, 11:52:01

Have there been any developments with this strange problem?

I've tried numerous DNS servers and can't access the site from here through IDNet, although I've had no problem from work (different ISP).

If it helps, the main site, www.jetbrains.net is accessible, but www.jetbrains.net/confluence redirects to http://confluence.jetbrains.net, and it seems to be this that is inaccessible.

Should I raise it as a support issue?

Rik · Jun 20, 2010, 11:54:17

Well, all three work for me, so I'd wonder about local issues, eg firewall.

DorsetBoy · Jun 20, 2010, 12:07:05

Which browser are you using?

www.jetbrains.net/confluence redirects to http://confluence.jetbrains.net

1) They are using an http address, not a www. and 2) the redirect is to a sub domain ,so they have probably moved the pages to a new folder.

Your browser settings or firewall may be preventing access to http addresses.

Glenn · Jun 20, 2010, 12:09:02

Works ok here too

[attachment deleted by admin]

pctech · Jun 20, 2010, 12:41:59

Could be that IPs have been spoofed and added to a block list on the server.

dlorde · Jun 20, 2010, 16:59:27

Well, I've tried with Chrome, Internet Explorer, and Firefox, and I've tried turning off security and disabling the firewall and changing the DNS, but no joy yet.

Thanks for the responses though.

Rik · Jun 20, 2010, 17:00:44

Try going through:

http://www.hidemyass.com/

If it works, your IP address would seem to be blocked.

dlorde · Jun 20, 2010, 17:17:36

Hey thanks Rik - that worked a treat!

Looks like my IP address is blocked... but why only that site?

Oh well, I only need it occasionally, so going indirect is no great inconvenience.

Rik · Jun 20, 2010, 17:27:13

Ask the site owners to unblock you, or at least tell you why they are blocking you.