21 lines
663 B
Bash
Executable File
21 lines
663 B
Bash
Executable File
#!/bin/bash
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#Simple script to use standard DNS if Unbound (behind Adguard) is unavailable for some reason
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if [[ -z $1 ]]; then
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SECONDS=0
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# ^ If nothing is specified, do not wait
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else
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SECONDS=$1
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# ^ If specified, wait however many seconds user specifies
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fi
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sleep $SECONDS
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if ! nc -vz localhost 53 >/dev/null 2>&1; then
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# ^ If you cannot connect to DNS port on local host
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sed -i -e 's/192.168.0.66/1.1.1.1/g' /etc/resolv.conf
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# ^ replace local address with 1.1.1.1 (Cloudflare DNS)
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else
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sed -i -e 's/1.1.1.1/192.168.0.66/g' /etc/resolv.conf
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# ^ If connection is established, use local DNS
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fi
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#Force update of DNS resolution
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/sbin/netconfig update -f
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