CODEWITHSUNDEEP
docker
the_prole
the_prole

Reputation: 8985

How to use 'ping' on Fedora Docker

In container root / directory I type

ping

and get 

bash: ping: command not found

then I type

yum install iputils

then I type

ping

and I get

bash: /usr/bin/ping: Operation not permitted

then I do

sudo ping

and I get

bash: sudo: command not found

so I type

yum install sudo

and I type

sudo ping

and I get

sudo: unable to execute /bin/ping: Operation not permitted

and at this point I give up and throw my hands in the air ...

so how can I use ping util, and I also want to use other utils like hostname and ifconfig

Upvotes: 7

Views: 12048

Answers (2)

Supersharp
Supersharp

Reputation: 31199

After installing *iputils, you should set CAP_NET_RAW capabilities:

sudo setcap cap_net_raw+p /bin/ping

As per therealkenc's post:

mortals don't have CAP_NET_RAW by default.

Upvotes: 2

Sreenivasa Reddy
Sreenivasa Reddy

Reputation: 304

It works with latest fedora

$ docker run -it fedora /bin/bash
Unable to find image 'fedora:latest' locally
latest: Pulling from library/fedora
01eb078129a0: Pull complete
Digest: sha256:8ee55e140e8751492ab2cfa4513c82093cd2716df9311ea6f442f1f1259cbb3e
Status: Downloaded newer image for fedora:latest

[root@5eee4a163a0e /]# pwd
/

[root@5eee4a163a0e /]# ping
bash: ping: command not found

[root@5eee4a163a0e /]# yum install iputils
Fedora Modular 29 - x86_64                                                                                                                                                  349 kB/s | 1.5 MB     00:04
Fedora Modular 29 - x86_64 - Updates                                                                                                                                        291 kB/s | 2.1 MB     00:07
Fedora 29 - x86_64 - Updates                                                                                                                                                4.3 MB/s |  25 MB     00:05
Fedora 29 - x86_64                                                                                                                                                          5.0 MB/s |  62 MB     00:12
Dependencies resolved.
============================================================================================================================================================================================================
 Package                                        Architecture                                  Version                                                   Repository                                     Size
============================================================================================================================================================================================================
Installing:
 iputils                                        x86_64                                        20180629-2.fc29                                           fedora                                        130 k

Transaction Summary
============================================================================================================================================================================================================
Install  1 Package

Total download size: 130 k
Installed size: 334 k
Is this ok [y/N]: y
Downloading Packages:
iputils-20180629-2.fc29.x86_64.rpm                                                                                                                                           84 kB/s | 130 kB     00:01
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                                        45 kB/s | 130 kB     00:02
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                                    1/1
  Installing       : iputils-20180629-2.fc29.x86_64                                                                                                                                                     1/1
  Running scriptlet: iputils-20180629-2.fc29.x86_64                                                                                                                                                     1/1
  Verifying        : iputils-20180629-2.fc29.x86_64                                                                                                                                                     1/1

Installed:
  iputils-20180629-2.fc29.x86_64

Complete!

[root@5eee4a163a0e /]# ping
Usage: ping [-aAbBdDfhLnOqrRUvV64] [-c count] [-i interval] [-I interface]
            [-m mark] [-M pmtudisc_option] [-l preload] [-p pattern] [-Q tos]
            [-s packetsize] [-S sndbuf] [-t ttl] [-T timestamp_option]
            [-w deadline] [-W timeout] [hop1 ...] destination
Usage: ping -6 [-aAbBdDfhLnOqrRUvV] [-c count] [-i interval] [-I interface]
             [-l preload] [-m mark] [-M pmtudisc_option]
             [-N nodeinfo_option] [-p pattern] [-Q tclass] [-s packetsize]
             [-S sndbuf] [-t ttl] [-T timestamp_option] [-w deadline]
             [-W timeout] destination

[root@5eee4a163a0e /]#

Upvotes: 6

Related Questions