Fedora-21 firewall advice?
Ed Greshko
ed.greshko at greshko.com
Sun Jan 18 21:56:09 UTC 2015
On 01/19/15 05:32, Gordon Messmer wrote:
> On 01/18/2015 04:44 AM, Heinz Diehl wrote:
>> Opposed to what is written in this article, firewalld leaves the
>> system open even after upgrading with "--product=nonproduct", which I
>> verified some minutes ago on a laptop upgraded from F20 to F21
>> yesterday evening.
>
> Use 'iptables -L -n -v'. You are probably mistaking the allow-all-on-lo rule for an entirely open rule. Firewalld's default is not "open"
Yes. It is certainly *NOT OPEN* as has been suggested....
Trying to connect to sendmail on a newly minted F21 system from a F20 system....
[egreshko at meimei ~]$ telnet 192.168.1.222 25
Trying 192.168.1.222...
telnet: connect to address 192.168.1.222: No route to host
Then opening up the port...
[egreshko at meimei ~]$ telnet 192.168.1.222 25
Trying 192.168.1.222...
telnet: connect to address 192.168.1.222: Connection refused
Since sendmail isn't listening on the port.
--
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