Introduction
In this tutorial we learn how to install c-ares on CentOS 8.
What is c-ares
c-ares is a C library that performs DNS requests and name resolves asynchronously. c-ares is a fork of the library named ‘ares’, written by Greg Hudson at MIT. c-ares 1.13.0 5.el8 x86_64 93 k c-ares-1.13.0-5.el8.src.rpm baseos A library that performs asynchronous DNS operations http MIT c-ares is a C library that performs DNS requests and name resolves asynchronously. c-ares is a fork of the library named ‘ares’, written by Greg Hudson at MIT.
We can use yum or dnf to install c-ares on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install c-ares.
Install c-ares on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install c-ares using dnf by running the following command:
sudo dnf -y install c-ares
Install c-ares on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install c-ares using yum by running the following command:
sudo yum -y install c-ares
How To Uninstall c-ares on CentOS 8
To uninstall only the c-ares package we can use the following command:
sudo dnf remove c-ares
c-ares Package Contents on CentOS 8
/usr/lib/.build-id
/usr/lib/.build-id/3f
/usr/lib/.build-id/3f/f78cbca73bccafdd09248a91d85e8463030624
/usr/lib64/libcares.so.2
/usr/lib64/libcares.so.2.2.0
/usr/share/doc/c-ares
/usr/share/doc/c-ares/CHANGES
/usr/share/doc/c-ares/LICENSE
/usr/share/doc/c-ares/NEWS
/usr/share/doc/c-ares/README.cares
/usr/lib/.build-id
/usr/lib/.build-id/64
/usr/lib/.build-id/64/7c972e1ceddb9eff9a84cc75f0c63cbed1d8e5
/usr/lib/libcares.so.2
/usr/lib/libcares.so.2.2.0
/usr/share/doc/c-ares
/usr/share/doc/c-ares/CHANGES
/usr/share/doc/c-ares/LICENSE
/usr/share/doc/c-ares/NEWS
/usr/share/doc/c-ares/README.cares
References
- [c-ares website](http://c-ares.haxx.se/
http://c-ares.haxx.se/)
Summary
In this tutorial we learn how to install c-ares on CentOS 8 using yum and dnf.
