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31 lines
757 B
Bash
31 lines
757 B
Bash
#!/bin/sh
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IFCONFIG="/sbin/ifconfig"
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IP="/sbin/ip"
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INTERFACES="/etc/network/interfaces"
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IFACE=$($IP -o link show | awk '{print $2,$9}' | grep "UP" | cut -d ":" -f 1)
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ADDRESS=$(hostname -I | cut -d ' ' -f 1)
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NETMASK=$($IFCONFIG | grep -w inet |grep -v 127.0.0.1| awk '{print $4}' | cut -d ":" -f 2)
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GATEWAY=$(route -n|grep "UG"|grep -v "UGH"|cut -f 10 -d " ")
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cat <<-IPCONFIG > "$INTERFACES"
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auto lo $IFACE
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iface lo inet loopback
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iface $IFACE inet static
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pre-up /sbin/ethtool -K $IFACE tso off
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pre-up /sbin/ethtool -K $IFACE gso off
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address $ADDRESS
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netmask $NETMASK
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gateway $GATEWAY
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# Exit and save: [CTRL+X] + [Y] + [ENTER]
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# Exit without saving: [CTRL+X]
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IPCONFIG
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exit 0
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