AWS SES

Discussion in 'General discussions' started by BackOffice, Feb 24, 2019.

  1. BackOffice

    BackOffice New Member

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    Hello,

    Recently i have closed all open ports on my server except 80 and 443, can it somehow be linked with amazon giving me bellow error ?

    If yes, which ports do i need to open ?
     
  2. BackOffice

    BackOffice New Member

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    Found it,
    issue is linked with NTP server port 123, in case if anybody has the same problem:
    Code:
    sudo iptables -A OUTPUT -p udp -m udp -m multiport --dports 123 -m state --state NEW -j ACCEPT
    sudo iptables -A INPUT -m state --state NEW -p udp --dport 123 -j ACCEPT
    
     
    twisted1919 likes this.
  3. scottdmat

    scottdmat New Member

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    So to lock down the mailwizz server and run without issue, the only firewall ports you need open with AWS security groups is ports 80, 443, and 123? No other ports?
     
  4. twisted1919

    twisted1919 Administrator Staff Member

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    @scottdmat - 80 is http and 443 is https, but why would you need 123?
    You most likely need 22 for ssh as well.
     
  5. scottdmat

    scottdmat New Member

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    @twisted1919

    I am using AWS SES like @BackOffice and it looks like when he locked down his server he was getting an AWS SES error until he opened port 123. I was assuming I would be in the same situation and thought that I would have to do the same.

    So to get this correct, do I only need to open ports 80, 443, and ssh port?

    Or do I need to open port 123 as well since I am using AWS SES?
     

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