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How to ICMPs and traceroutes in Java


How to ICMPs and traceroutes in Java

By : user3864634
Date : January 10 2021, 01:47 PM
hope this fix your issue Here's what I wrote today to "implement" the trace route command in Java. I've only tested in windows but it should work in Linux as well although there are several traceroute tools available for Linux so most likely there need to be some checks for the existence of those programs.
code :


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A few related questions regarding traceroutes in c:

A few related questions regarding traceroutes in c:


By : user3721580
Date : March 29 2020, 07:55 AM
Traceroute: target doesn't acknowledge packet just from a specific host. Traceroutes from other hosts work fine. Ping wo

Traceroute: target doesn't acknowledge packet just from a specific host. Traceroutes from other hosts work fine. Ping wo


By : Beginner
Date : March 29 2020, 07:55 AM
it helps some times If you are using domain names (not IP), check that they are resolved properly. ISP dropping the packets would not be an issue since everything is on site.
Ping works, so I assume both machines see each other on the network. But is it should be the sending machine (linux) to send the Ping to be sure that the machine isn't blocked somewhere in the network.
NEO4J : ERROR: Unable to find java. (Cannot execute /usr/lib/jvm/java-7-oracle/jre/bin/java/bin/java)

NEO4J : ERROR: Unable to find java. (Cannot execute /usr/lib/jvm/java-7-oracle/jre/bin/java/bin/java)


By : N. Maas
Date : March 29 2020, 07:55 AM
it fixes the issue When you run it as 'sudo' you are running it as the root user, not your user. As a result your JAVA_HOME path (which is your user environment) won't apply.
Is it possible to send traceroutes from Linux Azure VM?

Is it possible to send traceroutes from Linux Azure VM?


By : hiren prajapati
Date : March 29 2020, 07:55 AM
wish of those help Because tracert and traceroute work in different ways.
In windows, tracert is based on ICMP, we can use tracert to test connection from Azure VM to the outside.
code :
root@ubuntu:~# traceroute -I 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
 1  * * *
 2  * * *
 3  * * *
 4  * * *
 5  * * *
 6  * * *
 7  * * *
 8  * * *
 9  * * *
10  * * *
11  google-public-dns-a.google.com (8.8.8.8)  1.599 ms  1.593 ms  1.783 ms
I am seeing the error: A message body writer for Java class java.util.ArrayList, and Java type java.util.List<java.la

I am seeing the error: A message body writer for Java class java.util.ArrayList, and Java type java.util.List<java.la


By : Jitendra Kumar
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I see the JSON providers in the error message, so it seems you have the jersey-json dependency. But it seems (from what I tested) that the internal Jersey providers don't know how to handle lists of scalar values. For that you would need to make sure that Jackson is enabled. You can do that simply configuring the POJOMappingFeature in your web.xml
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