Trivial File Transfer Protocol Daemon (TFTPD)

Features:
1. Fast, connectionless (UDP), file transfers
2. Often used to move files to and fro networked systems (VOIP Phones, PXE configurations, Router/Firewall/Switch configurations, etc.)

Note: Implemented as 2 components:
a. Client - tftp-*rpm
b. Server - tftp-server*

Tasks:
1. Install TFTP client
a. yum -y install tftp
2. Install TFTP server
a. yum -y install tftp-server
Note: this also install 'xinetd' dependency

3. Configure and start 'tftp' via 'xinetd'
a. /etc/xinetd.d/tftp - modify this file prior to starting 'TFTPD'
b. service xinetd start - to start XINETD
Note: TFTPD listens to UDP:69, by default
Note: use 'netstat -nulp | grep 69' to check if 'xinetd' is listening

4. Copy Cisco Router configuration to TFTP server
a. copy running-config tftp://192.168.75.199
b. setsebool -P tftpd_disable_trans=1 - disables SELinux for TFTPD
c. 'service xinetd restart' - restart XINETD
d. 'chmod 666 linuxcbtrouter1.config' - to permit TFTPD to write

5. Use 'tftp' client to download 'linuxcbtrouter1.config' file
a. tftp 192.168.75.199 -c get linuxcbtrouter1.config
b. tftp - enters interactive mode

Note: tftp client operates in both non-interactive and interactive modes