[CentOS] ipforwarding between interfaces and firewall rules

Sat May 1 04:27:28 UTC 2021
R C <cjvijf at gmail.com>

from what I heard,

nftables doesn't support forward rules yet, until RHEL/Centos 8.5   at 
this time it can be "resolved" using iptables as the firewall backend, 
but not nftables (which is not ideal, but ...  ) .

Ron



On 4/30/21 10:19 PM, Anthony K wrote:
> On 1/5/21 2:15 pm, Anthony K wrote:
>> On 26/4/21 8:42 am, R C wrote:
>>> ...
>>> for example; if I do "ping www.google.com"  I get a "ping 
>>> www.google.com: Name or service not known"  If I use  an IP address 
>>> (from www.google.com), it just works.
>>
>> Sometimes seeing the traffic flow reveals what's really going on. To 
>> that end, run command below on the firewall box: tcpdump -i any port 
>> 53 or port 5353 Then on the client, query www.google.com
>>
> That didn't format well at all - one more try:
>
> On firewall: tcpdump -l -n -i any port 53 or port 5353 ---
>
> On client: query www.google.com
>
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos