https://wiki.kptree.net/ 2026-09-19T11:50:14+00:00 https://wiki.kptree.net/ https://wiki.kptree.net/_media/wiki:dokuwiki.svg text/html 2024-12-15T03:35:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/linux_router:dns_dhcp?rev=1734233746&do=diff linux router dns dhcp bind ip ipv6 radvd host dig nslookup DHCP / DNS Setup Outdated I have moved my DNS and DHCP servers to Docker, Docker-DNS Server. I am still using ISC_Bind9, but am now using ISC_Kea for DHCP as ISC_Bind is no longer supported as of 2022. tl;dr; Further to this I am not looking at backups for both these services on my local area network. Whilst these services worked reliably well, when ever I shutdown the the router with text/html 2026-06-21T00:26:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/linux_router:hardware?rev=1782001578&do=diff linux router hardware Router Hardware ikoolcore-r2-max (Dec 2024) The Supermicro SYS-E200-9B has stopped working. It posts bios, but will not boot further. I suspect hardware failure of some sort. The BMC failed a few years ago. I have ordered a replacement ikoolcore-r2-max. The replacement comes with 2.5Gb/s and 10GB/s NICs and a more modern and faster 8 core text/html 2025-11-30T10:55:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/linux_router:network?rev=1764500119&do=diff linux debian ubuntu router network netplan interface vlan ipv6 ip Debian Server Network Setup Debian Network - Server Interface Setup As of Debian 10 (Buster) Debian still by default uses this interface Setup. It can be setup to use netplan inface. Ubuntu (as of version 14.04) defaults to Predictable Network Interface Names, also see Systemd Docs. I have no problem with this. In any case, you should always check dev names and not assume names, such as text/html 2025-01-04T10:36:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/linux_router:ipoe?rev=1735987016&do=diff linux router bridged modem isp ipoe mtu dns dhcp ISP IPoE DHCP Setup Notes Notes on Setting up a Linux router for IPoE DHCP. old, tldr; After a few years of reasonable successful use of bridged VDSL modem with Linux Router running pppoe and nftables my ISP informed me that they do not use authentication on the connection with username and password. In fact they mention they used dhcp IPoE as well as PPPoE. I set up my spare modem as they described and it worked straight way. When I tried my… text/html 2025-05-22T08:07:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/linux_router:ubuntu?rev=1747901253&do=diff linux router router_configuration setup debian ubuntu snap snaps switch network Router Configuration, Switch & Server Setup Router Configuration [DRAFT] A router performs the following key features: * A gateway between different network areas * Restrict network traffic * Forward Network traffic * Track network traffic, allows traffic incoming only if response to out going (one way traffic) This is primary firewall action and primary security action! This is often confused with NAT… text/html 2022-01-16T03:37:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/linux_router:nftables_control?rev=1642304220&do=diff linux nft nftables nmap NFTables IP Control I primarily set this feature up to act as a form of parental control on my home internet access. Disable Range of IP addresses, with count-down timer The DHCP assigned addresses in the range 100 - 254 were to be disabled (dropped) in the evening. The addresses below 100 were assigned a specific IP address in the DHCP based upon MAC. text/html 2024-12-15T02:31:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/linux_router:iptables?rev=1734229861&do=diff linux router firewall iptables IPTables Configuration Having delved into IPtables and NFtables about the same time, my feelings are that NFTables is generally superior in just about every way, I can not be bothered explaining this, this is just my experience and feeling. I would preferentially use NFTables over IPtables where I have a choice. Unfortunately some software still uses IPtables, e.g. Docker. So it is good to be able to be sufficiently fluent and be able to work in both at this … text/html 2026-01-31T11:03:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/linux_router:wifi?rev=1769857432&do=diff linux router wifi wifi_router access_point Wifi Router / Access Points I prefer to run higher quality wifi access points (AP) than the all in one type routers. My current router is X86 based running Linux Nftables on bare metal and Bind9 and Kea as well as some other services in Docker on a VM. text/html 2024-06-23T01:11:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/linux_router:netfilter?rev=1719105097&do=diff linux router mtu netfilter Basic Netfilter Function Block Diagram Both NFTables and IPTables use the Netfilter framework provided in the Linux kernal. NFtables was implemented to supersede IPTables, which due to the widespread use of IPTables, will probably take a long time. The following is a basic block diagram of the Netfilter Filter and NAT (Network Address Translation) functions, which are the basic requirements for router. Incoming Packets | ┌────────────…