Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning RHEL Networking

You're reading from   Learning RHEL Networking Gain Linux administration skills by learning new networking concepts in Red Hat Enterprise Linux 7

Arrow left icon
Product type Paperback
Published in Jun 2015
Publisher
ISBN-13 9781785287831
Length 216 pages
Edition 1st Edition
Arrow right icon
Toc

Table of Contents (13) Chapters Close

Preface 1. Introducing Enterprise Linux 7 FREE CHAPTER 2. Configuring Network Settings 3. Configuring Key Network Services 4. Implementing iSCSI SANs 5. Implementing btrfs 6. File Sharing with NFS 7. Implementing Windows Shares with Samba 4 8. Integrating RHEL 7 into Microsoft Active Directory Domains 9. Deploying the Apache HTTPD Server 10. Securing the System with SELinux 11. Network Security with firewalld Index

Masquerading and Network Address Translation

If your firewalld server is your network router running RHEL 7, you may wish to provide access to the Internet to your internal hosts on a private network. If this is the case, we can enable masquerading. This is also known as NAT (Network Address Translation), where the server's public IP address is used by internal clients. To establish this, we can make use of the built-in internal and external zones and configure masquerading on the external zone. The internal NIC should be assigned to the internal zone and the external NIC should be assigned to the external zone.

To establish masquerading on the external zone, we can use the following command:

# firewall-cmd --zone=external --add-masquerade

Masquerading is removed using the --remove-masquerade option. We may also query the status of masquerading in a zone using the --query-masquerade option. In the following screenshot, we can see masquerading being enabled and then queried with the resulting...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at ₹800/month. Cancel anytime