I should mention too resolve.conf is mostly for DNS of your host machine.
If resolve.conf was screwed up. You wouldn't be able to type in google.com
into your browser, unless you typed out the server's ip address.
On Fri, Dec 7, 2018 at 8:28 PM Andrew McRobb <
andrewmcrobb@gmail.com> wrote:
> ping command won't mean anything sometimes. Some servers can have those
> ping protocols blocked for security/performance reasons. After running a
> quick netcat command to the port 143, I get data responded. Are you sure
> you configured Thunderbird correctly?
>
> https://www.xfinity.com/support/articles/setting-up-thunderbird
>
> Not sure, but 993 seems like it time out. At that point it maybe a them
> problem. -- Wouldn't hurt to call and ask.
>
> On Fri, Dec 7, 2018 at 7:44 PM Jim <jim.nantz15@comcast.net> wrote:
>
>> Today I noticed a problem when I use Thunderbird to check my email on my
>> Kubuntu 18.04 box. I got the following error in Thunderbird: Failed to
>> connect to imap.comcast.net However it will connect to
>> imap.comcast.net. I also couldn't ping imap.comcast.net.
>>
>> delboy@ladmo:~$ ping imap.comcast.net
>> ping: imap.comcast.net: Name or service not known
>> delboy@ladmo:~$
>>
>> In Network manager I have the following DNS servers in this order:
>> 192.168.1.4 192.168.1.1, 8.8.8.8 8.8.4.4. I found this in
>> /etc/resolv.conf
>>
>> # Generated by NetworkManager
>> nameserver 127.0.0.53
>>
>> If I change 127.0.0.53 to one of the DNS servers I have in Network
>> Manager, Thunderbird works again, but I'm not able to ping
>> imap.comcast.net. I get the same error I mentioned earlier. I really
>> don't care if I can ping it or not as long as Thunderbird can connect to
>> it. However when I reboot or restart Network Manager, resolv.conf goes
>> back to 127.0.0.3.
>>
>> Is there some bug with Network Manager or has comcast manged to screw up
>> something?
>>
>> thanks
>>
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