Zettel 202109140245: Setting Up a TFTP Server for RHEL/CentOS7/8/Fedora
To set up a tftp server in RHEL/CentOS7/8/Fedora, do the following:
# dnf install tftp-server
Last metadata expiration check: 0:13:11 ago on Tue 14 Sep 2021 08:31:55 PM CDT.
Dependencies resolved.
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Package Architecture Version Repository Size
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Installing:
tftp-server x86_64 5.2-32.fc34 fedora 40 k
Transaction Summary
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Install 1 Package
Total download size: 40 k
Installed size: 64 k
Is this ok [y/N]: y
Downloading Packages:
tftp-server-5.2-32.fc34.x86_64.rpm 73 kB/s | 40 kB 00:00
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Total 26 kB/s | 40 kB 00:01
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : tftp-server-5.2-32.fc34.x86_64 1/1
Running scriptlet: tftp-server-5.2-32.fc34.x86_64 1/1
Verifying : tftp-server-5.2-32.fc34.x86_64 1/1
Installed:
tftp-server-5.2-32.fc34.x86_64
Complete!Next, start and enable the service:
# systemctl --now enable tftp.service
Created symlink /etc/systemd/system/sockets.target.wants/tftp.socket → /usr/lib/systemd/system/tftp.socket.
# systemctl status tftp.service
● tftp.service - Tftp Server
Loaded: loaded (/usr/lib/systemd/system/tftp.service; indirect; vendor preset: disabled)
Active: active (running) since Tue 2021-09-14 20:52:48 CDT; 8s ago
TriggeredBy: ● tftp.socket
Docs: man:in.tftpd
Main PID: 2893775 (in.tftpd)
Tasks: 1 (limit: 4525)
Memory: 188.0K
CPU: 3ms
CGroup: /system.slice/tftp.service
└─2893775 /usr/sbin/in.tftpd -s /var/lib/tftpboot
Sep 14 20:52:48 localhost systemd[1]: Started Tftp Server.I get stumped by the fact that you install tftp-server but you start tftp.service. I’d like some consistency with the naming, here. Oh well . . .
Notice your default home directory is /var/lib/tftpboot. Place the files that you want to serve with tftp in that directory.
If you’re running firewalld, you’ll need to allow the service:
# firewall-cmd --zone=public --add-service=tftp --permanent
successAll done. If you’re still having problems after these steps, check for the following:
- Did you forget to install tftp on the client device?
- Is a firewall running on the client device?
- Is a network firewall or router preventing the server and client from talking over port 69 UDP?
- Remember, TCPDUMP is your friend.
September 14, 2021 unlinked cli