Created
November 20, 2011 01:45
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update your dynamic IP, for freedns.afraid.org; place under cron
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| #!/bin/sh | |
| cacheip="/etc/ip.cache" | |
| checkurl='http://freedns.afraid.org/dynamic/check.php' | |
| updateurl='http://freedns.afraid.org/dynamic/update.php?xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' | |
| [ -r "${cacheip}" ] && read -r _date _time _oldip <<< "$(tail -1 "${cacheip}")" | |
| _newip="$(wget "$checkurl" -o /dev/null -O /dev/stdout | sed -n 's/^Detected.*: \(.\+\)/\1/p')" | |
| [ "${_newip}" == "${_oldip}" ] && printf "IP has not changed: %s\n" "${_newip}" && exit 0 | |
| if wget -q --waitretry=5 --tries=4 "$updateurl" -o /dev/null -O /dev/stdout; then | |
| printf "%s %s\n" "$(date +"%F %R")" "${_newip}" >> "${cacheip}" | |
| printf "IP updated: %s\n" "${_newip}" | |
| else | |
| printf "%s %s\n" "$(date +"%F %R")" "failed" >> "${cacheip}" | |
| fi | |
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replace
updateurlwith yours and place under/etc/cron.hourly