Questions tagged [mtr]

The MTR tool is a combination of traceroute and ping. It is a network diagnostic tool.

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What does the --filename option of mtr actually do?

I was looking for a tool to display the continuous ping loss to multiple hosts, and I looked at mtr as it already has the display I was thinking about. I saw that it has this option which sounded ...
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How do I specify an ipv6 address as a target with mtr?

ping6 <address> works as expected. mtr -6 <address> returns mtr: udp socket connect failed: Invalid argument mtr -6 '<address>' returns mtr: udp socket connect failed: Invalid ...
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why the ping value different from the mtr?

Why the ping command's output value is different from the mtr command ? I am curious。 ping: about 0.5ms mtr: about 2.3ms
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Periods of high packet loss, two ethernet cables plugged into TWC modem

A small business for which I am the system administrator has been experiencing intermittent internet dropouts. There seems to be no pattern to the dropouts — sometimes there is nothing for a week, and ...
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568 views

MTR Report Analysis

We have two different routes to a server. One has this latency of 20000+ ms latency. The other does not have it. The latency happens exactly in the same route and in the same node. The users ...
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243 views

Debugging ETIMEDOUT errors

I'm trying to debug frequent ETIMEDOUT errors to api.facebook.com (31.13.95.8) when doing HTTP GET requests from our Linux Servers. To figure out whether it is an issue on our server or on Facebook ...
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587 views

MTR doesn't recognize IPs of hops

I am building an integrated network operations portal that ties together information from a number of resources. One thing I would like to understand is the topology of the network, and I am trying ...
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328 views

Running a MTR in Screen through SSH

I recently was introduced to a command that will ssh in our proxy server, then ssh into a network: ssh myname@proxy -t "host $IP" I tried modifying the command as follows to run MTR against our SIP ...
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1answer
704 views

Why this server is so slow?

I hired a VPS in DigitalOcean, it's hosted in Amsterdam, I'm in Turkey. But server is responding slowly and page is freezing/lagging even at ajax POST-GET request.(there is a basic browser game in ...
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241 views

Troubleshoot packet loss and slow transfers on some sites

I need some help troubleshooting a network problem. Home ISP says its the server's network to blame, and host says there's problem on ISP side. With little knowledge, its hard to see where the problem ...
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Connection problema to specific IP

Sometimes, like twice a year a have problems of connectivity from my server to an api server. And only to that api server. Other third party services we use were working fine. I am not so good on the ...
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why mtr is much faster than traceroute?

In the mtr man pages, it reads: mtr combines the functionality of the traceroute and ping programs in a single network diagnostic tool I use mtr a lot, and find that it's way much faster than ...
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What is the “right way” to monitor network?

My production servers are kept at US east coast and some of the supporting apps are kept at Amsterdam in Europe. There is a Nagios instance running at US east coast as well which does a few port ...
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Results of MTR on STDOUT?

I am trying out mtr (My traceroute) for educational purposes. However it is quite disturbing that I can't manage it to print results to stdout directly. Per default it opens a GTK-Window where it ...
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6k views

How to monitor a specific interface with mtr

So, I have two interfaces from different ISP's and I'm trying to monitor my connection using mtr. This is the command I'm currently trying to use: mtr --no-dns --address $MY_REAL_IP_HERE $...
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How does mtr work / interpreting pain points using mtr

I have been recently trying out mtr to get network congestion pain points. Following are sample mtr requests Example 1 $ mtr --report -c 10 my.example.com HOST: ansh0l-Lenovo Loss% ...
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2k views

What is the format of mtr raw output?

I use mtr to count number of hops to a host and pass that number to a script. I discovered -l (or --raw) option which produces an output ready for parsing. However, I'd like to know where to find this ...
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Test a server using MTR through TCP

Is it possible to use MTR over TCP? If not is there an alternative? I have done some research and I am not finding any way to do such a thing, so I'm wondering if anyone has had any experience with ...
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Why there are always 10% of loss when testing with mtr command?

For example, if I run this command against example.com, with mtr command, I always get 10% of loss, no matter how many time I run, why exactly is 10%? mtr --report 192.0.43.10 HOST: localhost Loss% ...
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How to interpret traceroute / output of MTR?

I have been running MTR to/from one of my servers and noticed something that looks odd to me. Because I am not really into this I will give you three outputs: This is from the server to my home ...
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High percentage of lost packets - TCP, ICMP - mtr - Complain to ISP?

Problem I'm having high packet loss, according to mtr, when sending packets over the Internet. Should I complain to my ISP? Story I am reading the OReilly Linux Networking Cookbook and the chapter ...
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6k views

Firewall rules for using mtr/traceroute from LAN

I have a LAN of Linux computers that get access to the Internet over NAT. The gateway runs a restrictive firewall. I have ICMP echo requests and replies allowed to pass through the firewall on the ...
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Why is network stack ignoring icmp replies from non-default interface?

I have following situation: eth0 - default gateway ( ip: 172.28.183.100, gw: 172.28.183.1 ) eth0 - secondary network connection ( ip: 172.28.171.2, gw: 172.28.171.2). routing looks like this: ...