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- Debian Server Network Setup
- twork configuration *Use ''sudo journalctl -xeu networking'' (''sudo systemctl status networking'') to check any errors on networking *This also brings up dhclient requests on... etwork dhcp *Use ''sudo journalctl -xeu systemd-networkd'' (''sudo systemctl status systemd-networkd'') *Use ''sudo journalctl -xeu NetworkManager'' (''sudo systemctl status NetworkManager'') (Linux desktops tend to use this) References: *[[https://wiki.debian.org/NetworkConfiguration|NetworkConfiguration]] see section on Bridging *[[https
- Router Miscellaneous
- onding]], [[https://help.ubuntu.com/community/KVM/Networking|KVM networking]], [[https://help.ubuntu.com/community/NetworkConnectionBridge|network bridging]] and [[https://help.ubuntu.com/community/BridgingNetworkInterfaces|bridging network interfaces]] *Linux.com [[https://www.linux.com/learn... questions/128439/good-detailed-explanation-of-etc-network-interfaces-syntax|Good detailed explanation of /etc/network/interfaces syntax?]] and [[https://unix.stackexch... nity/tutorials/how-to-configure-bind-as-a-private-network-dns-server-on-ubuntu-16-04|How To Configure BIND as a Private Network DNS Server on Ubuntu 16.04]] and [[https://www.di
- NFTables Configuration
- [https://wiki.kptree.net/doku.php?id=linux_router:network#ubuntu_network_-_interface_setup|network interface]].</color>++\\ <tab3>define <color red... [https://wiki.kptree.net/doku.php?id=linux_router:network#ubuntu_network_-_interface_setup|network interface]].</color>++\\ <tab3>define <color red... oopback-to-forwarded-public-ip-address-from-local-network-hairpin-nat|Loopback to forwarded Public IP address from local network - Hairpin NAT]] The following commands provide a... uter resources than snat This only affects local networks that use NAT which is basically mandatory for IP
- Router Configuration, Switch & Server Setup
- n IP address to interface eth0 Once the computer network has been manually assigned and network reset check that the network address and mask have been correctly set. If the assigned network mask is incorrect, that is in most cases not /24 ... <- linux_router:hardware|Prev page ^ linux_router:start|Start page ^ linux_router:network|Next page ->
- TC - Traffic Control
- ====TC - Traffic Control====== The Linux kernel's network stack has network traffic control and shaping features. The iproute... _enterprise_linux/8/html/configuring_and_managing_networking/linux-traffic-control_configuring-and-managing-networking#linux-traffic-control_configuring-and-managing... are Offloading]] *[[https://docs.gz.ro/tuning-network-cards-on-linux.html| Linux Networking: How to disable/enable offload features, RX/TX... ime.com/blog/post/2026-03-20-enable-gro-tso-linux-network/view| How to Enable Generic Receive Offload (GRO)
- Basic Netfilter Function Block Diagram
- T Table=== The ''nat'' table is used to implement network address translation rules. As packets enter the network stack, rules in this table will determine whether... re routed. This is often used to route packets to networks when direct access is not possible. ===The Mang... her lengthening or shortening the number of valid network hops the packet can sustain. Other IP headers can... r further processing in other tables and by other networking tools. This mark does not touch the actual pac
- ISP IPoE DHCP Setup Notes
- systemd/network/99-default.link Network File: /run/systemd/network/10-netplan-eno1.network Type: ether ... tion Model: I210 Gigabit Network Connection HW Address: 0c:c4:... Gateway: 202.7.254.1 (Juniper Networks) DNS: 8.8.8.8 ... Linux dhclient command]] *[[https://www.computernetworkingnotes.com/ccna-study-guide/how-dhcp-works-expla
- Router VM
- s not fully suitable for purpose. * A bridge network setup on the remaining 3 Ethernet ports as a LAN (Local Area Network). The bridge network setup has the following required features: * It allows connections of multiple ... e device, with the bridge effectively acting as a network switch for the connected physical ports. (On my ... ll these physical ports are connected to a common network bridge device. This seem to just work, and each p
- Router Hardware
- *Ethernet Ports: 2 x Marvell AQC113C-B1-C 10Gbps Network cards(via PCIe 3.0 x 2), 2 x Intel i226-v 2.5G network cards (via PCIe 3.0 x 1) *AQC113C-B1-C is a 6-Speed Commercial Temperature Grade, RoHS 6/6* network chipset *Storage: 2 x M.2 2242/2280 NVMe SSD, P... CP for DHCP * Wireguard for remote access to my network I would consider to try setting up a VM and Docke... N Port, allowing full remote KVM operation on the network. A downside of the IPMI is that it uses another 3
- IPTables Configuration
- ange the file permissions: ''sudo chown root /etc/network/if-pre-up.d/iptables'', and ''sudo chmod 755 /etc/network/if-pre-up.d/iptable''. Note that if /etc/network/if-pre-up.d/iptables is not complete the network may not start-up. This is desirable, as router connectiv
- Wireguard VPN access from WAN to LAN
- [https://wiki.kptree.net/doku.php?id=linux_router:network#ubuntu_network_-_interface_setup|network interface]].</color>++\\ <tab3>define <color red... + \\ <tab9><color blue> # bad tcp -> avoid network scanning: </color>\\ <tab9> tcp flags & (f
- DHCP / DNS Setup
- nity/tutorials/how-to-configure-bind-as-a-private-network-dns-server-on-debian-9|How To Configure BIND as a Private Network DNS Server on Debian 9]]\\ *[[https://computing... allow services provided by hosts on the internal network to be reached externally via NAT also to be reach... et declaration in your dhcpd.conf file for the network segment to which interface eno4 is attached. *... daemon for IPv6 Documentation=man:radvd(8) After=network.target ConditionPathExists=/etc/radvd.conf [Serv
- ISP PPPoE Network Setup
- au/blog/2021/internode-ipv6-on-linux-with-systemd-networkd/|Internode IPv6 on Linux with systemd-networkd]] ====Install Software==== Install the DNS, DHC... n mynetfone". If successful there should be a new network interface ppp1 <fs smaller>Some useful links: Ub... rward=1'' To see all system variables concerning network: ''sysctl -a | grep net'' <- linux_router:network|Prev page ^ linux_router:start|Start page ^ linux_rout
- Wifi Router / Access Points
- i/uhttpd.lua' option script_timeout '60' option network_timeout '30' option http_keepalive '20' option ... rt]] *[[https://openwrt.org/docs/guide-user/network/wifi/wifiextenders/bridgedap|Wi-Fi Extender/Repea... et]] *[[https://openwrt.org/docs/guide-user/network/wifi/routedap|Routed AP]] *[[https://openwr
- NFTables IP Control
- chain tcp_cek { # bad tcp -> avoid network scanning: tcp flags & (fin|syn) == (fin