Hi all! On Fri, 2019-12-20 at 17:39 -0700, Roy wrote: [...] > I created a new VM with Centos 8 and installed dovecot and postfix. > Postfix is working fine but dovecot rejects connections from anything > but the local machine. > > Locally > > Trying 10.10.100.157... > Connected to 10.10.100.157. > Escape character is '^]'. > * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE > IDLE STARTTLS AUTH=PLAIN] Dovecot ready. > > Machine on same subnet. Windows, Linux, etc. Doesn't seem to matter > > telnet 10.10.100.157 143 > Connecting To 10.10.100.157... > Could not open connection to the host, on port 143: Connect failed > > I made sure the iptables are empty so it doesn't seem to be a firewall issue
In the host or the VM? Is teh VM switchted or routed with the LAN interface? > I put some LOG statements in the iptables and it showed the connect > packet arriving and the response packet was ICMP type 3 code 13. Which make it pretty clear that it has nothing to do with dovecot as such as that's aresponse from the TCP/IP-stack ... > Any ideas? Duckduckgo-ing "icmp 3 13" delivers as the 1st link http://www.networksorcery.com/enp/protocol/icmp/msg3.htm and 13 seem to indicate "Communication Administratively Prohibited." Your turn;-) MfG, Bernd -- Bernd Petrovitsch Email : [email protected] LUGA : http://www.luga.at
