RHEL8 firewalld tftp problem 搞掉我一天的時間...

 

https://linuxhint.com/install_tftp_server_centos7/

搞了一整天，結果是OS bug...

簡單的來說 換了RHEL8之後tftp一直不能傳，看fw會有異常的unreachable - admin prohibited filter

disable firewalld就會好，但總不能一直這樣吧....

3.106310 wan1 -- 192.168.26.26.23814 -> 192.168..100.33.69: udp 26

3.114525 wan1 -- 192.168..100.33.43341 -> 192.168.26.26.23814: udp 4

3.114943 wan1 -- 192.168.26.26 -> 192.168..100.33: icmp: host 192.168.26.26 unreachable - admin prohibited filter

8.105289 wan1 -- 192.168.26.26.23814 -> 192.168..100.33.69: udp 26

8.113544 wan1 -- 192.168..100.33.43342 -> 192.168.26.26.23814: udp 4

8.113931 wan1 -- 192.168.26.26 -> 192.168..100.33: icmp: host 192.168.26.26 unreachable - admin prohibited filter

怎麼改規則，怎麼加port都沒有效的...

/bin/firewall-cmd --permanent --zone public --add-service tftp-client

firewall-cmd --reload

sudo firewall-cmd --permanent --add-port=69/udp

sudo firewall-cmd --zone=public --add-service=tftp --permanent

firewall-cmd --reload