How To Install libcurl3-nss on Debian 9

In this tutorial we learn how to install libcurl3-nss on Debian 9. libcurl3-nss is easy-to-use client-side URL transfer library (NSS flavour)

Introduction

In this tutorial we learn how to install libcurl3-nss on Debian 9.

What is libcurl3-nss

libcurl3-nss is:

libcurl is an easy-to-use client-side URL transfer library, supporting DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, TELNET and TFTP.

libcurl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies, user+password authentication (Basic, Digest, NTLM, Negotiate, Kerberos), file transfer resume, http proxy tunneling and more!

libcurl is free, thread-safe, IPv6 compatible, feature rich, well supported, fast, thoroughly documented and is already used by many known, big and successful companies and numerous applications.

SSL support is provided by NSS.

There are three methods to install libcurl3-nss on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install libcurl3-nss Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install libcurl3-nss using apt-get by running the following command:

sudo apt-get -y install libcurl3-nss

Install libcurl3-nss Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libcurl3-nss using apt by running the following command:

sudo apt -y install libcurl3-nss

Install libcurl3-nss Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install libcurl3-nss using aptitude by running the following command:

sudo aptitude -y install libcurl3-nss

How To Uninstall libcurl3-nss on Debian 9

To uninstall only the libcurl3-nss package we can use the following command:

sudo apt-get remove libcurl3-nss

Uninstall libcurl3-nss And Its Dependencies

To uninstall libcurl3-nss and its dependencies that are no longer needed by Debian 9, we can use the command below:

sudo apt-get -y autoremove libcurl3-nss

Remove libcurl3-nss Configurations and Data

To remove libcurl3-nss configuration and data from Debian 9 we can use the following command:

sudo apt-get -y purge libcurl3-nss

Remove libcurl3-nss configuration, data, and all of its dependencies

We can use the following command to remove libcurl3-nss configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libcurl3-nss

Dependencies

libcurl3-nss have the following dependencies:

References

Summary

In this tutorial we learn how to install libcurl3-nss package on Debian 9 using different package management tools: apt, apt-get and aptitude.