Hier werden die Unterschiede zwischen zwei Versionen gezeigt.
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admin_grundlagen:network-basics [2020/09/08 06:48] (aktuell) ingo_wichmann angelegt |
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+ | ====== Begriffe ====== | ||
+ | ===== Betriebssystem ===== | ||
+ | * Treiber | ||
+ | * Devicename | ||
+ | |||
+ | ===== Layer 2: Ethernet, WLAN, ... ===== | ||
+ | |||
+ | * MacAdresse | ||
+ | * Switch | ||
+ | * Link-Speed | ||
+ | * MTU | ||
+ | * ESSID | ||
+ | * Host-zu-Host | ||
+ | |||
+ | ===== ARP ===== | ||
+ | * Neighbour Discovery | ||
+ | |||
+ | ===== Layer 3: IPv4 IPv6 ===== | ||
+ | * IP Adresse | ||
+ | * Subnetz | ||
+ | * Router | ||
+ | * Host-zu-Host | ||
+ | |||
+ | ===== Layer 4: TCP, UDP ===== | ||
+ | * Port | ||
+ | * Prozess-zu-Prozess | ||
+ | * Verbindung | ||
+ | |||
+ | ====== Befehle ====== | ||
+ | ===== Betriebssystem ===== | ||
+ | * lspci -s 01:00.1 -k | ||
+ | * depmod -a | ||
+ | * modprobe | ||
+ | * modprobe -r | ||
+ | * dmesg | ||
+ | * lsmod | ||
+ | * modinfo | ||
+ | * udevadm | ||
+ | * sysctl | ||
+ | * rfkill | ||
+ | * ls /sys/class/net | ||
+ | |||
+ | ===== Layer 2: Ethernet, WLAN, ... ===== | ||
+ | * ip -s link show | ||
+ | * ethtool enp1s25 | ||
+ | * ip link set up dev wlp2s0 | ||
+ | * iw dev wlp2s0 scan | ||
+ | |||
+ | ===== ARP ===== | ||
+ | * ip neighbor | ||
+ | |||
+ | ===== Layer 3: IPv4 IPv6 ===== | ||
+ | * ip addr add 172.27.0.5/16 dev enp1s25 | ||
+ | * ip route add default via 172.27.0.1 | ||
+ | * ping -f -s 1472 172.27.0.1 | ||
+ | |||
+ | ===== Layer 4: TCP, UDP ===== | ||
+ | * lsof -ac sshd -i | ||
+ | * ss -tua | ||