38 lines
1.4 KiB
Bash
Executable File
38 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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# ask to set static ip address
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read -r -p "Set Static IP address? <y/N> " prompt
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if [[ "${prompt,,}" =~ ^(y|yes)$ ]] ; then
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read -r -p "Enter Static IP Address with subnet prefix: " staticip
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read -r -p "Enter Gateway IP Address: " gatewayip
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read -r -p "Enter Primary DNS IP Address: " dnsip1
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# get adapter name
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name=$(basename /sys/class/net/e*)
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# backup original interfaces file
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if [[ ! -f /etc/network/interfaces.bak ]] ; then
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cp /etc/network/interfaces /etc/network/interfaces.bak
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fi
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rm /etc/network/interfaces
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cp /etc/network/interfaces.bak /etc/network/interfaces
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# set static ip
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sed -i "s,^iface $name inet dhcp*,iface $name inet static," /etc/network/interfaces
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echo " address $staticip" >> /etc/network/interfaces
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echo " gateway $gatewayip" >> /etc/network/interfaces
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# backup resolv.conf file
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if [[ ! -f /etc/resolv.conf.bak ]] ; then
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cp /etc/resolv.conf /etc/resolv.conf.bak
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fi
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rm /etc/resolv.conf
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# set primary dns ip
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echo "nameserver $dnsip1" >> /etc/resolv.conf
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# ask for secondary dns ip
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read -r -p "Set Secondary DNS IP Address? <y/N> " prompt
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if [[ "${prompt,,}" =~ ^(y|yes)$ ]] ; then
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read -r -p "Enter Secondary DNS IP Address: " dnsip2
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echo "nameserver $dnsip2" >> /etc/resolv.conf
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fi
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# restart the interface
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ifdown $name
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ifup $name
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fi
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