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coova / coova-chilli

CoovaChilli is an open-source software access controller for captive portal hotspots.
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coovachilli not working any more #442

Closed mfaroukg closed 6 years ago

mfaroukg commented 6 years ago

I am using coovachilli almost now for 4 years, suddenly my customers can't access the login page any more and the users who are authorized by MAC address are not able to brows the server.

I have done lots of debugging and the reason is not clear.

I have tried 1.3.0 and 1.4.0 on both ubuntu 14 and ubuntu 16 and same results were found.

I created isc-dhcp-server along with customized iptables filters and apache2 redirect but they are working fine as I used simple configurations.

I think there was an unattended upgrade on ubuntu messed up the function of the coovachilli, any one facing the same issue ? and how to solve it?

mfaroukg commented 6 years ago

I found the issue, it was in the kernel version 4.4.0-130, when i revert back to 4.4.0-127 it works again. $ dpkg -l | grep linux $ apt install linux-image-extra-4.4.0-127-generic linux-image-4.4.0-127-generic linux-headers-4.4.0-127 linux-headers-4.4.0-127-generic $ apt remove linux-image-extra-4.4.0-130-generic linux-image-4.4.0-130-generic linux-headers-4.4.0-130 linux-headers-4.4.0-130-generic $ apt-mark hold linux-image-generic linux-headers-generic

please check what is the issue in the new linux kernel!!!

sjbeskur commented 6 years ago

@mfaroukg good find. We too have experienced this same issue and have duplicated this in our lab. Your fix works well but it would be good to know what has caused this. Did you build coova with this Kernel or upgrade the Kernel after coova was built?

meyerj commented 6 years ago

I had the same issue running Coova 1.4 on Ubuntu Trusty Witz the latest -lts-xenial kernel (4.4.0-130). Downgrading to 127 as suggested by @mfaroukg solved the problem.

I did some debugging with tcpdump and it seems like ARP replies sent by Coova are not received by the clients, although visible when sniffing the subscriber interface on the same machine that is running Coova. DHCP works, but clients cannot reach the gateway after they got an IP.

imtase commented 6 years ago

same issue, solved by recompile and reinstall coova

mfaroukg commented 6 years ago

@sjbeskur found in all cases related to affected kernel

heruan commented 6 years ago

I'm experiencing the same on Ubuntu 18.04 Server (kernel 4.15.0-3). I think this should be reopened, since it is not fixed (and downgrading is a workaround, not a solution).

@mfaroukg Are you able to run CoovaChilli on the latest kernels?

mfaroukg commented 5 years ago

it is working on Ubuntu 16.04 linux-headers-4.4.0-128-generic

today i am trying the Ubuntu 18.04 but is seems that it has some issue in building the package on the rassberry Pi 2