[SOLVED] No internet access

[tbrasser]

My unRAID server can't access the internet. I've searched the forums & checked my network but I can't find anything wrong. 

 

Pinging google / github / etc from console doesn't work.

 

I run a physical pfSense router, which runs a DNS (I use dnsmasq blocking, but have that disabled to rule out that that was the problem, backend DNS is 1.1.1.1 )

Pfsense box: 10.0.10.1

LAN: 10.0.10.0/24

DHCP pool: 10.0.10.64-127

unRAID server: 10.0.10.10

docker network: 10.0.10.128/25

 

This started happening after I updated my pfsense firmware, but no other devices on my network seem to have any issues. 

 

 

Diagnostics are attached if anyone wants to take a look, hopefully it's something simple I've overlooked. 

server-diagnostics-20180805-1511.zip

Edited August 6, 2018 by tbrasser

[John_M]

The first and most obvious question is can you ping your router?

 

Second question: why does your docker network have a 25-bit netmask while everything else has 24 bits?

 

What is the output of

traceroute 1.1.1.1

typed at the unRAID command line?

[Frank1940]

Fill in the blanks for a DNS server addresses.  You can use    8.8.8.8     and     8.8.4.4      as they are Google's DNS servers and they work anywhere in the world.  

[tbrasser]

17 hours ago, John_M said:

The first and most obvious question is can you ping your router?

 

Second question: why does your docker network have a 25-bit netmask while everything else has 24 bits?

 

What is the output of

traceroute 1.1.1.1

typed at the unRAID command line?

 

1. Pinging my router works fine:

root@Server:~# ping 10.0.10.1
PING 10.0.10.1 (10.0.10.1) 56(84) bytes of data.
64 bytes from 10.0.10.1: icmp_seq=1 ttl=64 time=0.255 ms
64 bytes from 10.0.10.1: icmp_seq=2 ttl=64 time=0.294 ms
64 bytes from 10.0.10.1: icmp_seq=3 ttl=64 time=0.143 ms
64 bytes from 10.0.10.1: icmp_seq=4 ttl=64 time=0.202 ms
^C
--- 10.0.10.1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3095ms
rtt min/avg/max/mdev = 0.143/0.223/0.294/0.058 ms

2. Oh yeah, it's still on a /24 subnet, the /25 is the DHCP pool for the br0 docker network:

Subnet: 10.0.10.0/24 Gateway: 10.0.10.1 DHCP pool: 10.0.10.128/25  (128 hosts)

 

 

17 hours ago, Frank1940 said:

Fill in the blanks for a DNS server addresses.  You can use    8.8.8.8     and     8.8.4.4      as they are Google's DNS servers and they work anywhere in the world.  

Can't ping google's DNS servers either.

 

 

However while typing this comment I took a look at my pfsense config again, and found that the only thing different between the unraid server and the laptop I'm typing this comment on now is that I've had my laptop configured to go through an openVPN interface,   I just tried to add the unraid server to that alias list and now it's connecting again. weird.

 

So it's safe to say that the problem is not at the server, it's in my router config.   Thanks for the reactions anyway, I'll be reconfiguring my router/firewall now to tackle the problem.

[mgutt]

I had the same problem (no ping to 8.8.8.8 possible, but local access works). Finally I found out that the Tips and Tweaks Plugin killed my network settings. I do not know why, but after removing the "eth0" of the list and rebooting the machine, the internet was accessible again:

 

I think the plugin is overwriting my settings on boot causing this error. I will post this in the plugin's thread, too.

 

EDIT: Sometimes even the local network did not work. If this happens it helped to login through the server itself (IPMI or physical) and after log in with "root" and my password, I used this command to re-apply the network settings:

/etc/rc.d/rc.inet1 restart

After that I was able to open the webclient again.

 

Edited September 16, 2020 by mgutt

[Frank1940]

Please do NOT post to this thread saying you have the same problem.  Start a new thread.  (Attempting to service multiple queries leads to confusion!!!)

Edited September 10, 2020 by Frank1940