Hello, everybody. I have the following issue with my miab:
I just do not know why, friday morning my laptop just changed the local ip, switching from 192.168.1.100 to 192.168.1.86. After I realised that (it took me a while, jeje) I remapped the ports needed on my router.
Yet I still cannot receive mail.
Just checked with the namecheap support team, they told me that on their part, the nameservers everything is ok, pointing out to my public IP, and I should do something on my part (which I do not know how to do it. their answer: The additional step you need to perform is to go to your hosting side, the side - Pastebin.com)
; <<>> DiG 9.11.3-1ubuntu1.16-Ubuntu <<>> @126.96.36.199 ns mydomain.com ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 45795 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;mydomain.com. IN NS ;; Query time: 1049 msec ;; SERVER: 188.8.131.52#53(184.108.40.206) ;; WHEN: Sun Dec 19 11:53:30 CET 2021 ;; MSG SIZE rcvd: 40).
Also, the nmap -F 192.168.1.96 throws me this: (22/tcp open ssh
25/tcp open smtp 53/tcp open domain 80/tcp open http 139/tcp open netbios-ssn 443/tcp open https 445/tcp open microsoft-ds 465/tcp open smtps 587/tcp open submission 993/tcp open imaps 995/tcp open pop3s).
So, please, could anyone help me understand what is wrong with my miab instance, and how could I fix it? Should I open any port with udp protocole or not? I feel so lost…
Please, could you help me out?
I can send mail, but I cannot receive. I don’t know what am I missing here…
By th way, I set a static ip using the netplan command. So, locally, it should never change from 192.168.1.86.
Thanks in advance, and please, excuse the long explanation…