Internet on windows but not ubuntu bad pfsense configuration?

[DaddyGo]

@Raffi_

just an idea
it would be worthwhile to look at and compare these:

Windows: https://docs.microsoft.com/en-us/previous-versions//cc977482(v=technet.10)?redirectedfrom=MSDN

Linux: /etc/resolv.conf

search domain.net
option timeout:1
nameserver 1.1.1.1
nameserver 2.2.2.2
nameserver 3.3.3.3

or something like that

[Farisse]

@Raffi_

I removed the localhost from the general setting and these are the results

@DaddyGo It was a good suggestion, but unfortunately /etc/resolv.conf is managed by systemd-resolved who is used by netplan /etc/netplan/*.yaml

[Raffi_]

Interesting, well the two DNS servers seem to be responding better now. That could also be because they are caching.

How is Ubuntu getting its interface settings? Is it statically assigned in Ubuntu or is it set to automatic (DHCP)? There were no leases in your DHCP list.

[Farisse]

I assigned static ip through /etc/netplan/01-network-manager-all.yaml

Everything seems good to me....

Edit, maybe an non relevant information, i can not ping the other vms in the dmz network. But my other vms can ping my ubuntu vm. Could it be something to do with routing ?

[Raffi_]

Try running a packet capture on the DMZ of pfSense.
Diagnostics/ Packet Capture
Select DMZ, then in Count enter a very high value such as 10000. You can enter 0 but don't forget to stop the capture manually otherwise it will run a continuous capture and it can become a problem.

Download the capture data to wireshark and check for DNS info.

Dumb question, but have you tried to ping 8.8.8.8 from ubuntu? Does that work or is that failing as well?

[Farisse]

@Raffi_ said in Internet on windows but not ubuntu bad pfsense configuration?:

Dumb question, but have you tried to ping 8.8.8.8 from ubuntu? Does that work or is that failing as well?

Nope doesn't work because its blocked by the school.

I'll try the packet in a few minutes

[Raffi_]

@Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

@Raffi_ said in Internet on windows but not ubuntu bad pfsense configuration?:

Dumb question, but have you tried to ping 8.8.8.8 from ubuntu? Does that work or is that failing as well?

Nope doesn't work because its blocked by the school.

I'll try the packet in a few minutes

ICMP is blocked or google DNS server specifically is blocked?

[Farisse]

ICMP I guess. I can ping outside the network but not 8.8.8.8 or 8.8.4.4 I wont recieve any result wit this commands i began the ping on ubuntu and then on the windows machine who got internet:

[Farisse]

@Raffi_ said in Internet on windows but not ubuntu bad pfsense configuration?:

Select DMZ, then in Count enter a very high value such as 10000. You can enter 0 but don't forget to stop the capture manually otherwise it will run a continuous capture and it can become a problem.
Download the capture data to wireshark and check for DNS info.

So apparently my ubuntu machine does not send any dns request :

[Raffi_]

@Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

So apparently my ubuntu machine does not send any dns request :

That's not good. Is it even able to talk to pfSense at all? Can you ping pfSense (192.168.1.1) from Ubuntu?

[Farisse]

Yup but not able to ping windows machine

[Raffi_]

@Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

Yup but not able to ping windows machine

It can't ping Windows because by default Windows does not respond to ping. That has to be manually enabled in Windows. It is responding to pfSense though. So at least there is some sign of life there.

[Farisse]

Damn forgot to disable fw on this windows machine. >.<"

So apparently I don't know why, I suddenly have internet on my ubuntu machine.

I did not change anything i've reset my ubuntu vm twice to be sure and it seems to work. What the hell is going on here :o i think i'm losing my mind

[Raffi_]

@Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

Damn forgot to disable fw on this windows machine. >.<"

So apparently I don't know why, I suddenly have internet on my ubuntu machine.

I did not change anything i've reset my ubuntu vm twice to be sure and it seems to work. What the hell is going on here :o i think i'm losing my mind

lol don't touch it. You have a number of things which don't make sense. Like for instance the ping to pfSense is taking on average 600ms. In reality it should be more like 6ms. You have two extra zeros of delay. That's not good.

[Farisse]

Haha i won't but hope it will work when i will need it ! :D
Apparently even this is fixed. :

192.168.1.1 is my gateway to pfsense and 192.168.0.50 is pfsense ip..

I really hope it will stay working as i need it crossfingers

Many thanks for your help guys!

[DaddyGo]

@Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

Damn forgot to disable fw on this windows machine. >.<"

you don’t have to disable it all, just use this

netsh advfirewall firewall add rule name="ICMP Allow incoming V4 echo request" protocol=icmpv4:8,any dir=in action=allow

[Farisse]

@DaddyGo

Oow Nice good to know !! I actually disabled the fw just for testing, after the test i would reanable the firewalls but very good to know for my other servers maybe !! Thank you !

[DaddyGo]

@Farisse

you welcome