Hello
I tried the 'traceroute' command. It didn't work.
I mean the 'traceroute' should work.
What is the problem?

Your comments are deeply appreciated.


[root@c83-250-111-68 nissanka]# traceroute computerhope.com
bash: traceroute: command not found
[root@c83-250-111-68 nissanka]#

[root@c83-250-111-68 nissanka]# traceroute google.com
bash: traceroute: command not found
[root@c83-250-111-68 nissanka]#

[root@c83-250-111-68 nissanka]# traceroute www.google.com
bash: traceroute: command not found
[root@c83-250-111-68 nissanka]#

[Here I logged on as a root user. I tried it without logging on as a root user too.]

---------------------------------------------------------------------------------------

The 'ping' command worked fine.
PING google.com (64.233.187.99) 56(84) bytes of data.
64 bytes from 64.233.187.99: icmp_seq=1 ttl=236 time=152 ms
64 bytes from 64.233.187.99: icmp_seq=2 ttl=236 time=153 ms
64 bytes from 64.233.187.99: icmp_seq=3 ttl=236 time=152 ms
64 bytes from 64.233.187.99: icmp_seq=4 ttl=236 time=159 ms
64 bytes from 64.233.187.99: icmp_seq=5 ttl=236 time=151 ms
64 bytes from 64.233.187.99: icmp_seq=6 ttl=236 time=156 ms
64 bytes from 64.233.187.99: icmp_seq=7 ttl=236 time=151 ms
64 bytes from 64.233.187.99: icmp_seq=8 ttl=236 time=151 ms
64 bytes from 64.233.187.99: icmp_seq=9 ttl=236 time=209 ms
64 bytes from 64.233.187.99: icmp_seq=10 ttl=236 time=154 ms
64 bytes from 64.233.187.99: icmp_seq=11 ttl=236 time=152 ms
64 bytes from 64.233.187.99: icmp_seq=12 ttl=236 time=153 ms
64 bytes from 64.233.187.99: icmp_seq=13 ttl=236 time=157 ms
64 bytes from 64.233.187.99: icmp_seq=14 ttl=236 time=152 ms
64 bytes from 64.233.187.99: icmp_seq=15 ttl=236 time=151 ms
64 bytes from 64.233.187.99: icmp_seq=16 ttl=236 time=154 ms
64 bytes from 64.233.187.99: icmp_seq=17 ttl=236 time=152 ms
64 bytes from 64.233.187.99: icmp_seq=18 ttl=236 time=155 ms
64 bytes from 64.233.187.99: icmp_seq=19 ttl=236 time=152 ms
64 bytes from 64.233.187.99: icmp_seq=20 ttl=236 time=154 ms
64 bytes from 64.233.187.99: icmp_seq=21 ttl=236 time=151 ms
64 bytes from 64.233.187.99: icmp_seq=22 ttl=236 time=151 ms

Since the traceroute command is not found, I would make sure to check the traceroute rpm is installed.

rpm -qa | grep traceroute

If the traceroute program is installed, I would do a search for traceroute, and make sure its location is in yor PATH environment variable.

type
and it will tell you the absolute path of the binary. If you don't get any output then that means it is not installed on your system.

find / -name traceroute

command not found?

yum install traceroute

rpm -i traceroute

coreutils might also be checked.

if you add 2> /dev/null to the find command so it is:

you won't have to deal with all those annoying "Permission Denied" error messages. 2 stands for stderr so that extra bit is telling it to redirect the error messages to the bit bucket.

I thank everybody for the replies. As I have an examination on Friday, I am studying hard and have no time for addtional work. The test is on Data communication. I must know stuff like subnet calculations, Ethernet aspects, broadcast/collision domains, etc. I must concentrate the studies. As a matter of fact of this command was mentioned by my teacher and showed us on his Windows computer. I don't work with windows.

I will attend this later on; I mean after the examination.





The following are the results. It is obvious that I have to install some other stuff.
------------------------------------------------------------------------------

[nissanka@c83-250-106-249 ~]$ find / -name traceroute 2> /dev/null
[nissanka@c83-250-106-249 ~]$


--------------------------------------------------------------------------------


[nissanka@c83-250-106-249 ~]$ rpm -qa | grep traceroute
[nissanka@c83-250-106-249 ~]$
--------------------------------------------------------------------------------
[nissanka@c83-250-106-249 ~]$ whereis traceroute
traceroute:
[nissanka@c83-250-106-249 ~]$
---------------------------------------------------------------------------


[nissanka@c83-250-106-249 ~]$ find / -name traceroute
find: /lost+found: Permission denied
find: /etc/skel/tmp: Permission denied
find: /etc/default: Permission denied
find: /etc/cups/certs: Permission denied
find: /etc/cups/ssl: Permission denied
find: /etc/shorewall: Permission denied
find: /tmp/gconfd-root: Permission denied
find: /var/tmp/kdecache-root: Permission denied
find: /var/lib/xdm: Permission denied

[ There is a lot here. I don't want paste everything.]

It might not be traceroute. Looking on my Mandriva 2006 system, I don't have traceroute either, but I do have traceroute6 (under /usr/sbin). I think I would add a wildcard to that find command to see if you get anything back.

Hobbletoe

I got the following results. What does it means?

[nissanka@c83-250-111-195 ~]$ find / -name "traceroute*" 2> /dev/null
/usr/sbin/traceroute6
[nissanka@c83-250-111-195 ~]$

it means you have the command it is just named traceroute6. I don't know if there is any huge difference between traceroute and traceroute6. You can do this command as root

that will make a symbolic link to the traceroute6 so whenever you typed traceroute it will run that command. or you can make the link name something shorter if you want. do man ln for more info.

Like dr_zayus69 said, it appears to be traceroute, but under a different name. I'd definately do a man traceroute6 to see if it provides the same functionality as traceroute.

No it didn't work. The making of the link worked fine.
Not the command;Why is that?

[nissanka@c83-250-111-195 ~]$ su root
Password:
[root@c83-250-111-195 nissanka]# ln -s /usr/sbin/traceroute6 /usr/bin/traceroute



[root@c83-250-111-195 nissanka]# traceroute computerhope.com
traceroute: unknown host computerhope.com

[root@c83-250-111-195 nissanka]# traceroute google.com
traceroute: unknown host google.com

[root@c83-250-111-195 nissanka]# traceroute www.google.com
traceroute: unknown host www.google.com
[root@c83-250-111-195 nissanka]#

Well, it appears that for whatever reason, your DNS server isn't being hit, so it can not resolve a host to an IP. Can you ping one of those sites?

If so, then I would really start digging around into traceroute6 (Man page) to see if maybe you need another option set, which I don't think is the case. It really looks to me as if your computer is not talking to the DNS server.

A quick Google search told me that
traceroute6 is actually the IPv6 version of traceroute.

Since you're probably using IPv4, not v6, traceroute6 won't work.

After the examination, you should know the differences between the 2
My Data Communications courses are too long ago...

As
http://linuxreviews.org/man/traceroute6/
mentions, traceroute6 is part of the "iputils" package.
Maybe you can download a version for your distro and install it?

I am using IPV4. It is said that the IPV4 would be the standard until 2012 in this country. My teacher doesn't teach us IPV6; he thinks it is not necessary.

Then I suggest you go to
http://www.rpmfind.net
and download and install the "traceroute" package for your distro (Mandrake).
You may also want to grab the latest update of the "iputils" package and update the one
you have already installed.