Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.
Use the DNF tool to add repo for zeek tool:
[root@fedora home]# dnf config-manager --add-repo https://download.opensuse.org/repositories/security:zeek/Fedora_36/security:zeek.repo
Adding repo from: https://download.opensuse.org/repositories/security:zeek/Fedora_36/security:zeek.repo
Use DNF tool to install
[root@fedora home]# dnf install zeek-lts
The Zeek Network Security Monitor. (Fedora_36) 18 kB/s | 77 kB 00:04
Last metadata expiration check: 0:00:02 ago on Sat 11 Jun 2022 12:33:29 AM EEST.
Dependencies resolved.
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Package Arch Version Repository Size
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Installing:
zeek-lts x86_64 4.0.7-1.1 security_zeek 7.9 k
Installing dependencies:
libbroker-lts-devel x86_64 4.0.7-1.1 security_zeek 1.3 M
libpcap-devel x86_64 14:1.10.1-3.fc36 fedora 141 k
python3-GitPython noarch 3.1.26-1.fc36 fedora 275 k
python3-gitdb noarch 4.0.9-2.fc36 fedora 107 k
python3-semantic_version noarch 2.8.4-9.fc36 fedora 39 k
python3-smmap noarch 5.0.0-1.fc36 fedora 46 k
zeek-lts-btest x86_64 4.0.7-1.1 security_zeek 326 k
zeek-lts-core x86_64 4.0.7-1.1 security_zeek 4.8 M
zeek-lts-devel x86_64 4.0.7-1.1 security_zeek 957 k
zeek-lts-libcaf-devel x86_64 4.0.7-1.1 security_zeek 1.6 M
zeek-lts-zkg x86_64 4.0.7-1.1 security_zeek 50 k
zeekctl-lts x86_64 4.0.7-1.1 security_zeek 1.8 M
Transaction Summary
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Install 13 Packages
Total download size: 11 M
Installed size: 57 M
Is this ok [y/N]:y
Downloading Packages:
(1/13): python3-gitdb-4.0.9-2.fc36.noarch.rpm 232 kB/s | 107 kB 00:00
Complete!
Create a script file named main.zeek:
event zeek_init()
{
print "Hello, World!";
}
event zeek_done()
{
print "Goodbye, World!";
}
... and run this file:
[mythcat@fedora ~]$ /opt/zeek/bin/zeek main.zeek
Hello, World!
Goodbye, World!