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Mitesh Shah

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How to Fix Ping Socket Address Family Not Supported by Protocol

4 minutes to read (467 words) ()

Overview

  • Recently I’d updated CentOS 7 box
  • This will updated iputils package from 20121221-7.el7 to 20160308-8.el7
  • After the update the ping command is no longer to ping any IPv4 address :(
$ ping google.com
ping: socket: Address family not supported by protocol

$ ping 127.0.0.1
ping: socket: Address family not supported by protocol

$ ping localhost
ping: socket: Address family not supported by protocol

$ ping google.com
ping: socket: Address family not supported by protocol

$ ping -6 localhost
PING localhost (::1) 56 bytes of data.
64 bytes from localhost (::1): icmp_seq=1 ttl=64 time=0.034 ms
64 bytes from localhost (::1): icmp_seq=2 ttl=64 time=0.024 ms

How to Fix

  • I’d tried to build latest version of iputils but not successfull :(
  • So I’d revert it back to the older version
$ yum remove iputils
$ wget ftp://bo.mirror.garr.it/1/slc/centos/7.2.1511/os/x86_64/Packages/iputils-20121221-7.el7.x86_64.rpm
$ yum localinstall iputils-20121221-7.el7.x86_64.rpm

Check For Updates

$  yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.fibergrid.in
 * epel: ftp.riken.jp
 * extras: mirror.fibergrid.in
 * updates: mirror.fibergrid.in
Resolving Dependencies
--> Running transaction check
---> Package iputils.x86_64 0:20121221-7.el7 will be updated
---> Package iputils.x86_64 0:20160308-8.el7 will be an update
--> Finished Dependency Resolution

Dependencies Resolved

=============================================================================================================================================================================
 Package                                 Arch                                   Version                                           Repository                            Size
=============================================================================================================================================================================
Updating:
 iputils                                 x86_64                                 20160308-8.el7                                    base                                 147 k

Transaction Summary
=============================================================================================================================================================================
Upgrade  1 Package

Total download size: 147 k

Blacklist iputils update

  • I don’t want iputils again updated next time
  • So I’d blacklist iputils package from yum update
# Update the file as follows using the exclude keyword
$ vim /etc/yum.repos.d/CentOS-Base.repo
[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
exclude=iputils
$ yum update
Loaded plugins: fastestmirror
base                                                                                                                                                  | 3.6 kB  00:00:00     
http://mirror.digistar.vn/centos/7.3.1611/extras/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://mirror.digistar.vn/centos/7.3.1611/extras/x86_64/repodata/repomd.xml: (28, 'Connection timed out after 30001 milliseconds')
Trying other mirror.
extras                                                                                                                                                | 3.4 kB  00:00:00     
updates                                                                                                                                               | 3.4 kB  00:00:00     
Loading mirror speeds from cached hostfile
 * base: mirror.fibergrid.in
 * epel: ftp.riken.jp
 * extras: mirror.fibergrid.in
 * updates: mirror.fibergrid.in
No packages marked for update




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