sysctl -w net.ipv4.ip_default_ttl=128 # TTL temp. setzen 128 = Windows default ping 192.168.1.1 # Dauerping ping -c 4 192.168.1.1 # 4 Pings netstat -npl # offene Ports auflisten netstat -tulpn # offene Ports auflisten ss -tulpn # offene Ports auflisten lsof -i | grep -e LISTEN # offene Ports auflisten cat < /dev/tcp/127.0.0.1/22 # Teste Ports mit cat
/etc/network/interfaces.d
/etc/network/interfaces
sudo systemctl restart networking.service
# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug ens192 iface ens192 inet static address 192.168.2.236 netmask 255.255.255.0 gateway 192.168.2.254 dns-domain sweet.home dns-nameservers 192.168.2.254 1.1.1.1 8.8.8.8
sudo ip addr add 123.222.111.123 dev ens192 #temporär 2. IP hinzufügen (bis reboot)
# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug ens192 iface ens192 inet dhcp
| Pfad | Verantwortlich für |
|---|---|
/etc/udev/rules.d/70-persistent-net.rules | |
/etc/sysconfig/network/ifcfg-eth0 | Beinhaltet die Netzwerkkonfiguration für das Interface “eth0” |
/etc/sysconfig/network/routes | |
/etc/resolve.conf | |
/etc/HOSTNAME | |
/etc/hosts |
/etc/sysconfig/network/routes
Beispiel
default 192.168.63.1 - -
/etc/udev/rules.d/70-persistent-net.rules
Allgemein
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC-Adresse>", ATTR{type}=="1", KERNEL=="eth*", NAME="<ADAPTERNAME>"
Beispiel
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:50:56:85:54:00", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
/etc/sysconfig/network/ifcfg-eth0
Beispiel DHCP
BOOTPROTO='dhcp' #or static BROADCAST='' ETHTOOL_OPTIONS='' IPADDR='' #assigned if static e.g. 10.6.7.203 MTU='' NAME='AMD PCnet - Fast 79C971' NETMASK='' NETWORK='' REMOTE_IPADDR='' STARTMODE='auto' UNIQUE='rBUF.weGuQ9ywYPF' USERCONTROL='no' _nm_name='bus-pci-0000:02:01.0'
Beispiel Statische IP
BOOTPROTO='static' BROADCAST='' ETHTOOL_OPTIONS='' IPADDR='10.6.7.203' MTU='' NAME='AMD PCnet - Fast 79C971' NETMASK='255.255.255.0' NETWORK='' REMOTE_IPADDR='' STARTMODE='auto' UNIQUE='rBUF.weGuQ9ywYPF' USERCONTROL='no' _nm_name='bus-pci-0000:02:01.0'
/etc/HOSTNAME
Allgemein
<Computername>.<Domain>
/etc/resolve.conf
Allgemein
domain <Domain> nameserver <IP_des_Servers> nameserver <Ggf_IP_des_2._Servers>
Beispiel
domain site nameserver 10.0.0.1 nameserver 10.0.0.2
/etc/hosts → vergleichbar wie in Windows
Allgemein
127.0.0.1 localhost <lokale IP> <Computername>.<Domain> <Computername>
Beispiel
127.0.0.1 localhost 10.0.0.202 srstef.site srstef