Tagged Questions

1
vote
0answers
53 views

How to interpret traceroute with success on some routes and failing on other similar routes?

I have traceroute paths from 3 unique source hosts, to a single destination host (173.254.24.18). The final results of these three routes are including similar elements, and yet the final failing ...
-1
votes
1answer
71 views

How to find out why website is not accessible? [closed]

I cannot access a certain website. There are two possible reasons: The block is on the ISP side. The block is at the website. Is there a technical way to figure out which of these are causing the ...
1
vote
0answers
22 views

Configuring klg looking glass on Ubuntu [closed]

I am trying to configure klg looking glass and followed the klg_README.txt file. I think this klg_README.txt file is sufficient for expert guys. I am new with this tool. I have tried and could not add ...
0
votes
1answer
85 views

Ping -r command [closed]

I was trying "ping -r" command, while my system(windows Vista) is at different level of routers connected in series, and it was failing after 2 levels, i.e. upto router3 router1->router2->router3 it ...
-2
votes
2answers
244 views

OSX cannot ping my server IP, however unix & windows can [closed]

We are having an issue with our Debian Server, we host several services on it each using several ports (all are open in iptables), all users can connect to these fine, except osx users. We have got ...
2
votes
3answers
784 views

What is the best server or Ip address to use for prolonged testing?

I usually run uptime/latency tests against (and from) two servers that we own at different sites and until recently I've used the google dns servers as a control group. However, I've realized there ...
4
votes
1answer
276 views

How can I use ping with a large packet size to troubleshoot network issues?

What types of network problems can be identified with ping of a large packet size?
3
votes
2answers
251 views

ping -R and traceroute mismatch

I am stuck at a very strange result after running the command ping -R in a unix environment. To be more specific, I am trying to follow the path to a server and back but there is quite a mismach ...
0
votes
1answer
226 views

What should I do after traceroute?

I have a problem that my server (CentOS 5) cannot connect twitter.com. I've used traceroute command like this: traceroute twitter.com -d -I and I got the following lines: traceroute to ...
2
votes
6answers
2k views

Intermittent high ping/latency problem

I have been working with my ISP (which is a WISP, actually Fixed Broadband Wireless) trying to figure out why I intermittently get high latency. The latency is detectable in online games and other ...
4
votes
1answer
530 views

What do the RTT numbers mean in a TraceRoute result?

I have this traceroute result, and I am wondering what EXACTLY do the 3 numbers mean at the end of each line? I assume they are ping times, but what exactly is the difference between each number? 1 ...
1
vote
3answers
2k views

Ping returns different results if asked ip address or hostname

Alright, I've got an irritating problem. When I ping one of the servers in my company with ping 192.168.1.62 I get my box ldmmit1 as the result. But when I use this line ping ldmmit1 I ...
5
votes
4answers
4k views

How does TCP Ping or Traceroute Work?

How does the tcp ping or traceroute work? Does it take in account just the time it takes to establis the TCP handshake? Also in ICMP ping you can specify the packet size, can this be achieved in TCP ...
0
votes
1answer
161 views

ISP filtering traffic through proxy? Can't connect to private proxy using an IP address accept list

I'm trying to figure out why this computer can't connect to these private proxies I have. These proxies work with an IP address accept list. So, I've looked up the IP address on the ...
0
votes
2answers
373 views

why does tracert only report one hop on failure

I've been having an issue with one host on my network not being able to ping or tracert machines on the internet while all other hosts can. When I run a tracert from the machine I get the following ...
1
vote
1answer
3k views

Can ping but cannot traceroute from Linux. Can do both from Windows. What gives?

So here's the issue. I have two different computers behind the same network. Both have the same gateway, IP address prefixes, etc. Computer 1: Windows XP IP 192.168.0.15 This computer can ping and ...
1
vote
2answers
114 views

How to access this server?

I have a server that I cannot access. At first I thought it was just some temporary failure with the server, but checking from other IP addresses reveals that it is working just fine. It's only my IP ...
2
votes
2answers
208 views

Client can't reach my production webserver. It's their ISP's fault, but now what?

I have a customer in Michigan who can't access my production SaaS webserver that is hosted on Slicehost. All other companies across the US/Canada/Europe have no problem reaching the site. This ...
1
vote
5answers
563 views

Ping / Trace Route

More and more I see programmers developing web based applications that are based on what I call "ping-then-do" mentality. An example would be the application that pings the mail server before sending ...
0
votes
3answers
221 views

remote telnet and email

This issue has been occupying my work for the last few days and I will be understating when I say its driven me up the blasted walls. Essentially, I can ping and tracert the domain jnrcs.org and the ...
5
votes
6answers
2k views

Why does traceroute take much longer than ping?

How to explain this? C:\Documents and Settings\Administrator>tracert google.com Tracing route to google.com [64.233.189.104] over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms ...