How To Install ngrep on Rocky Linux 8

In this tutorial we learn how to install ngrep on Rocky Linux 8. ngrep is Network layer grep tool

Introduction

In this tutorial we learn how to install ngrep on Rocky Linux 8.

What is ngrep

ngrep strives to provide most of GNU grep’s common features, applying them to the network layer. ngrep is a pcap-aware tool that will allow you to specify extended regular or hexadecimal expressions to match against data payloads of packets. It currently recognizes TCP, UDP, ICMP, IGMP and Raw protocols across Ethernet, PPP, SLIP, FDDI, Token Ring, 802.11 and null interfaces, and understands bpf filter logic in the same fashion as more common packet sniffing tools, such as tcpdump and snoop.

We can use yum or dnf to install ngrep on Rocky Linux 8. In this tutorial we discuss both methods but you only need to choose one of method to install ngrep.

Install ngrep on Rocky Linux 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

After updating yum database, We can install ngrep using dnf by running the following command:

sudo dnf -y install ngrep

Install ngrep on Rocky Linux 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

After updating yum database, We can install ngrep using yum by running the following command:

sudo yum -y install ngrep

How To Uninstall ngrep on Rocky Linux 8

To uninstall only the ngrep package we can use the following command:

sudo dnf remove ngrep

ngrep Package Contents on Rocky Linux 8

/usr/lib/.build-id
/usr/lib/.build-id/23
/usr/lib/.build-id/23/c71df214bdf23c28f6658138c7037608ecbc68
/usr/sbin/ngrep
/usr/share/doc/ngrep
/usr/share/doc/ngrep/CHANGES
/usr/share/doc/ngrep/CREDITS
/usr/share/doc/ngrep/EXAMPLES.md
/usr/share/doc/ngrep/README.md
/usr/share/licenses/ngrep
/usr/share/licenses/ngrep/LICENSE
/usr/share/man/man8/ngrep.8.gz

References

Summary

In this tutorial we learn how to install ngrep on Rocky Linux 8 using yum and dnf.