39 lines
1.6 KiB
Bash
Executable File
39 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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########################################################################
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# Author: Fred (support@qo-op.com)
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# Version: 0.3
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# License: AGPL-3.0 (https://choosealicense.com/licenses/agpl-3.0/)
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########################################################################
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{ # Full reading before execution !
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# echo '
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#
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# __ ___ _ ___
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# / |/ /_ __ ____ ____ _____ ___ ___ (_)___/__ \
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# / /|_/ / / / / / __ \/ __ `/ __ `__ \/ _ \ / / ___// _/
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# / / / / /_/ / / / / / /_/ / / / / / / __/ / (__ )/_/
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# /_/ /_/\__, / /_/ /_/\__,_/_/ /_/ /_/\___/ /_/____/(_)
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# /____/
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#
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# ' | lolcat
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MY_PATH="`dirname \"$0\"`" # relative
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MY_PATH="`( cd \"$MY_PATH\" && pwd )`" # absolutized and normalized
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ME="${0##*/}"
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# GNU DEBIAN Core install extension
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[[ ! $(which nslookup) ]] && sudo apt-get update && sudo apt-get install dnsutils -y
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# What I am doing:
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export myIP=$(hostname -I | awk '{print $1}')
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# Check if IP is from reserved LAN addresses
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export isLAN=$(echo $myIP | grep -E "/(^127\.)|(^192\.168\.)|(^10\.)|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(^::1$)|(^[fF][cCdD])/")
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# Find 1st route gateway
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export myRouter=$(sudo route -n | head -n 3 | tail -n 1 | awk '{print $2}')
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# Ask to the router its name (BOX DNS or system defined)
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[[ $isLAN ]] && export NODENAME=$(sudo nslookup $myIP $myRouter | head -n 1 | awk -F ' = ' '{print $2}' | sed 's/\.[^.]*$//') \
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|| export NODENAME=$(sudo nslookup $myIP | head -n 1 | awk -F ' = ' '{print $2}' | sed 's/\.[^.]*$//')
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# I can tell
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echo "$NODENAME"
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} # Full reading before execution !
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