CentOS 6.3: Installing a TFTPD server for uploading configuration files

These days I’m reading Vyatta Core’s documentations as I’m planning to deploy virtual routers and firewalls on my OpenNebula cloud laboratory. I remember the days I worked with Cisco routers and how many times I had to use a tftp server to store configurations. You don’t need a tftp to store remotely your virtual router configurations (you can use ssh or ftp) but I feel nostalgic and I want to use that server in my CentOS machine.

yum install tftp-server
adduser tftpd
chown tftpd:tftpd /var/lib/tftpboot
# if you are running iptables and want to save your firewall rules
iptables -I INPUT -p udp --dport 69 -j ACCEPT
service iptables save
# if you want xinetd/tftpd start on boot
chkconfig xinetd on

I’ve created a tftpd user and added some parameters suggested in the /usr/share/doc/tftp-server-0.49/README.security. As I want to be able to upload files I need -c and -p arguments and I’ve set the umask for the new files 117 (read write permissions for tftpd user and group). These are the lines I’ve modified in the /etc/xinitd.d/tftpd :

• disable = no
• server_args = -c -p -u tftpd -U 117 -s /var/lib/tftpboot

Finally start the xinetd service:

• service xinetd start

Your TFTPD server will be running in the UDP 69 port.

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