Search found 133 matches

by wp.rauchholz
2021/02/27 13:18:44
Forum: CentOS 8 - Networking Support
Topic: nftables does not startup during server boot: Error: Interface does not exist nft[
Replies: 1
Views: 72

nftables does not startup during server boot: Error: Interface does not exist nft[

My home server is modem / router and as such has to NICs. I transitioned from iptables to nftables. When booting the server pp0 is not yet up and therefor nftables does not start. systemd[1]: Starting Netfilter Tables... nft[884]: /etc/sysconfig/nftables.conf:7:7-12: Error: Interface does not exist ...
by wp.rauchholz
2021/01/27 05:20:56
Forum: CentOS 8 - Networking Support
Topic: Monitoring network traffic
Replies: 2
Views: 192

Monitoring network traffic

I finally managed to setup my home server who acts as a modem/router. Mostly it works fine. But I experience trouble with some webpages and also some apps from my iphone. They don't seem to be able to connect to the remote servers. All ports required ports of internal/external z one are open. How ca...
by wp.rauchholz
2021/01/18 18:38:19
Forum: CentOS 7 - Networking Support
Topic: Problems setting uo a modem/router server.
Replies: 1
Views: 83

Problems setting uo a modem/router server.

Trying to setup me box as modem/router with iptables and network-scripts The server has two NICs: LAN=enp3s0 / WAN = ep5s0/ppp0 Package forwarding is set: net.ipv4.ip_forward = 1 Firewall is up and running: ….. ############################################################### ### OUTBOUND Rule: Allow ...
by wp.rauchholz
2021/01/16 13:10:31
Forum: CentOS 8 - Networking Support
Topic: Can't get LAN to work
Replies: 4
Views: 177

Re: Can't get LAN to work

I gave up on trying to use NetworkManager to setup my box as modem/router. I went back to network-scripts as thos worked under Centos 7. But here too, I ran into an issue I cannot solve and google does not help. Maybe I find a soluton here: I stopped/disbabled and removed NetworkManager. I installed...
by wp.rauchholz
2021/01/12 19:41:48
Forum: CentOS 8 - Networking Support
Topic: Can't get LAN to work
Replies: 4
Views: 177

Re: Can't get LAN to work

I might have found something...
https://gitlab.freedesktop.org/snippets/638
by wp.rauchholz
2021/01/12 19:27:58
Forum: CentOS 8 - Networking Support
Topic: Can't get LAN to work
Replies: 4
Views: 177

Re: Can't get LAN to work

Hi tunk,

thanks for the help. I think I will do the same.
I tried to get it work with NetworkManager and I believe I know now why it is not working; NetworkManager does not look in /etc/sysconfig/network-scripts for the ppp0 config but in /etc/NetworkManager.

Wolfgang
by wp.rauchholz
2021/01/12 12:53:42
Forum: CentOS 8 - Networking Support
Topic: Can't get LAN to work
Replies: 4
Views: 177

Can't get LAN to work

I am trying to setup my Centos 8 box as a modem/router. I had it running under Centos 7, no prob. I am using good old iptables becasue I fell more comfortable with. firewalld is disabled. I plan to move to nftables later. I configured enp3s0 (LAN) as static enp5s0 has BOOTPROTO 0f none. I setup pppo...
by wp.rauchholz
2021/01/05 12:23:56
Forum: CentOS 7 - Networking Support
Topic: iptables: redirecting MAC address to squid
Replies: 0
Views: 74

iptables: redirecting MAC address to squid

I want to capture through iptables traffic originating from certain MACs and force them through squid. I came up wit example underneath. I can implement it, but it does nto seem to do the job. What do I need to change that all traffic from this HWADDr goes through port 3128? This MAC address belongs...
by wp.rauchholz
2020/12/31 15:09:23
Forum: CentOS 7 - Networking Support
Topic: Squid > clients auto-detect proxy setting
Replies: 0
Views: 75

Squid > clients auto-detect proxy setting

I am trying to setup my squid proxy in such a way that when I am at home my devices autodetect squid and when I am travelling the devices ignore it So that is what I did: In dhcpd.con I added option wpad code 252 = text; (global section) option wpad "http://<mydomain>/wpad.dat"; I placed wpad.dat in...
by wp.rauchholz
2020/12/29 17:54:42
Forum: CentOS 7 - Networking Support
Topic: iptables firewall
Replies: 0
Views: 174

iptables firewall

Not sure I am asking too much now... Attached is the script of the firewall I am using on my home server which is modem/router and serves the LAN. Wanted to get an expert opinion whether this is good enough of a firewall. #!/bin/sh # ############################################################### ##...

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