dominic 已修改 2 days ago. 還原成這個修訂版本
1 file changed, 2 insertions, 1 deletion
update-ip.sh
| @@ -1,5 +1,6 @@ | |||
| 1 | - | #!/bin/bash | |
| 1 | + | #!/bin/sh | |
| 2 | 2 | # Created on 2025-12-07 12:22 UTC | |
| 3 | + | # Author: Dominic Reich (OE7DRT) <quick.hat4396@qtztsjosmprqmgtunjyf.com> | |
| 3 | 4 | # | |
| 4 | 5 | # Removed IPv6 as this way does not get the real IPv6 address (why?) | |
| 5 | 6 | # 2025-12-24 | |
dominic 已修改 2 days ago. 還原成這個修訂版本
1 file changed, 36 insertions, 32 deletions
update-ip.sh
| @@ -1,6 +1,8 @@ | |||
| 1 | - | #!/bin/sh | |
| 1 | + | #!/bin/bash | |
| 2 | 2 | # Created on 2025-12-07 12:22 UTC | |
| 3 | - | # Author: Dominic Reich (OE7DRT) <quick.hat4396@qtztsjosmprqmgtunjyf.com> | |
| 3 | + | # | |
| 4 | + | # Removed IPv6 as this way does not get the real IPv6 address (why?) | |
| 5 | + | # 2025-12-24 | |
| 4 | 6 | ||
| 5 | 7 | # Get my outgoing ipv4 address via ifconfig.me and compare it with the recent ip saved in ~/.my-ipv4 | |
| 6 | 8 | # Update dns with the actual ipv4 if it changed | |
| @@ -37,7 +39,7 @@ RR_COMMENT6="" | |||
| 37 | 39 | ||
| 38 | 40 | # remote ipv4 | |
| 39 | 41 | IPREMOTE4=$(curl -4 -sgkL https://ifconfig.me/ip 2>/dev/null) | |
| 40 | - | IPREMOTE6=$(curl -6 -sgkL https://ifconfig.me/ip 2>/dev/null) | |
| 42 | + | # IPREMOTE6=$(curl -6 -sgkL https://ifconfig.me/ip 2>/dev/null) | |
| 41 | 43 | # echo "DBG: got ip ${IPREMOTE4}" | |
| 42 | 44 | ||
| 43 | 45 | # check if remote ips contain valid data | |
| @@ -56,15 +58,15 @@ else | |||
| 56 | 58 | fi | |
| 57 | 59 | ||
| 58 | 60 | #check for IP6 | |
| 59 | - | if [ -w "${IPFILE6}" -a -f "${IPFILE6}" ] | |
| 60 | - | then | |
| 61 | - | SAVEDIP6=$(cat ${IPFILE6}) | |
| 62 | - | # echo "DBG: saved ip is ${SAVEDIP4}" | |
| 63 | - | else | |
| 64 | - | # no existing ipv4 file, create one and add new ipv4 into it | |
| 65 | - | /bin/echo -n "${IPREMOTE6}" > ${IPFILE6} | |
| 66 | - | # echo "DBG: saved ip ${IPREMOTE4} to file ${IPFILE4}" | |
| 67 | - | fi | |
| 61 | + | # if [ -w "${IPFILE6}" -a -f "${IPFILE6}" ] | |
| 62 | + | # then | |
| 63 | + | # SAVEDIP6=$(cat ${IPFILE6}) | |
| 64 | + | # # echo "DBG: saved ip is ${SAVEDIP4}" | |
| 65 | + | # else | |
| 66 | + | # # no existing ipv4 file, create one and add new ipv4 into it | |
| 67 | + | # /bin/echo -n "${IPREMOTE6}" > ${IPFILE6} | |
| 68 | + | # # echo "DBG: saved ip ${IPREMOTE4} to file ${IPFILE4}" | |
| 69 | + | # fi | |
| 68 | 70 | ||
| 69 | 71 | # check if remote ip is identical as locally saved ip | |
| 70 | 72 | if [ "${SAVEDIP4}x" = "${IPREMOTE4}x" ] | |
| @@ -73,6 +75,7 @@ then | |||
| 73 | 75 | # echo "DBG: do nothing, ips are equal" | |
| 74 | 76 | echo >&2 "IPv4 identical. Nothing to do" | |
| 75 | 77 | else | |
| 78 | + | echo >&2 "Setting IPv4 address to ${IPREMOTE4}" | |
| 76 | 79 | # ips differ, update dns ip with remote ip and save into local ip file | |
| 77 | 80 | curl -s -g -X POST -H "Authorization: Bearer ${AUTH_TOKEN}" \ | |
| 78 | 81 | -H "Content-Type: application/json" \ | |
| @@ -89,23 +92,24 @@ then | |||
| 89 | 92 | fi | |
| 90 | 93 | ||
| 91 | 94 | # and repeat for ipv6 | |
| 92 | - | if [ "${SAVEDIP6}x" = "${IPREMOTE6}x" ] | |
| 93 | - | then | |
| 94 | - | # if remote ip is equal as locally saved (old) ip | |
| 95 | - | # echo "DBG: do nothing, ips are equal" | |
| 96 | - | echo >&2 "IPv6 identical. Nothing to do" | |
| 97 | - | else | |
| 98 | - | # ips differ, update dns ip with remote ip and save into local ip file | |
| 99 | - | curl -s -g -X POST -H "Authorization: Bearer ${AUTH_TOKEN}" \ | |
| 100 | - | -H "Content-Type: application/json" \ | |
| 101 | - | -d '{"records":[{"value":"'${IPREMOTE6}'","comment":"'${RR_COMMENT6}'"}]}' \ | |
| 102 | - | "${API_URL}${ZONE_ID}/rrsets/${RR_NAME}/${RR_TYPE6}/actions/set_records" > /dev/null | |
| 103 | - | /bin/echo -n "${IPREMOTE6}" > ${IPFILE6} | |
| 104 | - | fi | |
| 105 | - | ||
| 106 | - | if [ "${CHECK}x" = "truex" ] | |
| 107 | - | then | |
| 108 | - | # also check for ipv6 | |
| 109 | - | curl -s -H "Authorization: Bearer ${AUTH_TOKEN}" \ | |
| 110 | - | "${API_URL}${ZONE_ID}/rrsets/${RR_NAME}/${RR_TYPE6}" | ${JQ} "[.[] | .records]" | |
| 111 | - | fi | |
| 95 | + | # if [ "${SAVEDIP6}x" = "${IPREMOTE6}x" ] | |
| 96 | + | # then | |
| 97 | + | # # if remote ip is equal as locally saved (old) ip | |
| 98 | + | # # echo "DBG: do nothing, ips are equal" | |
| 99 | + | # echo >&2 "IPv6 identical. Nothing to do" | |
| 100 | + | # else | |
| 101 | + | # echo >&2 "Setting IPv6 address to ${IPREMOTE6}" | |
| 102 | + | # # ips differ, update dns ip with remote ip and save into local ip file | |
| 103 | + | # curl -s -g -X POST -H "Authorization: Bearer ${AUTH_TOKEN}" \ | |
| 104 | + | # -H "Content-Type: application/json" \ | |
| 105 | + | # -d '{"records":[{"value":"'${IPREMOTE6}'","comment":"'${RR_COMMENT6}'"}]}' \ | |
| 106 | + | # "${API_URL}${ZONE_ID}/rrsets/${RR_NAME}/${RR_TYPE6}/actions/set_records" > /dev/null | |
| 107 | + | # /bin/echo -n "${IPREMOTE6}" > ${IPFILE6} | |
| 108 | + | # fi | |
| 109 | + | # | |
| 110 | + | # if [ "${CHECK}x" = "truex" ] | |
| 111 | + | # then | |
| 112 | + | # # also check for ipv6 | |
| 113 | + | # curl -s -H "Authorization: Bearer ${AUTH_TOKEN}" \ | |
| 114 | + | # "${API_URL}${ZONE_ID}/rrsets/${RR_NAME}/${RR_TYPE6}" | ${JQ} "[.[] | .records]" | |
| 115 | + | # fi | |
dominic 已修改 2 weeks ago. 還原成這個修訂版本
1 file changed, 111 insertions
update-ip.sh(檔案已創建)
| @@ -0,0 +1,111 @@ | |||
| 1 | + | #!/bin/sh | |
| 2 | + | # Created on 2025-12-07 12:22 UTC | |
| 3 | + | # Author: Dominic Reich (OE7DRT) <quick.hat4396@qtztsjosmprqmgtunjyf.com> | |
| 4 | + | ||
| 5 | + | # Get my outgoing ipv4 address via ifconfig.me and compare it with the recent ip saved in ~/.my-ipv4 | |
| 6 | + | # Update dns with the actual ipv4 if it changed | |
| 7 | + | ||
| 8 | + | # set default value for CHECK | |
| 9 | + | # override this when starting the script like `CHECK=true update-ip.sh` | |
| 10 | + | : "${CHECK:=false}" | |
| 11 | + | ||
| 12 | + | if [ "${CHECK}x" = "truex" ] | |
| 13 | + | then | |
| 14 | + | # currently abort if jq is not installed | |
| 15 | + | # might enter another routine to still display the record at the end | |
| 16 | + | command -v jq > /dev/null 2>&1 || { echo >&2 "jq not found"; exit 1; } | |
| 17 | + | ||
| 18 | + | # jq may be placed somewhere in /usr/local so first get the real path | |
| 19 | + | JQ=$(command -v jq) | |
| 20 | + | fi | |
| 21 | + | ||
| 22 | + | # specify file names | |
| 23 | + | IPFILE4="${HOME}/.my-ipv4" | |
| 24 | + | IPFILE6="${HOME}/.my-ipv6" | |
| 25 | + | ||
| 26 | + | # Auth token (Hetzner new dns console as of Dec 2025) | |
| 27 | + | API_URL="https://api.hetzner.cloud/v1/zones/" | |
| 28 | + | AUTH_TOKEN="" | |
| 29 | + | ||
| 30 | + | # Domain settings (zone id, rrset name, rrset type) | |
| 31 | + | ZONE_ID="domain.local" | |
| 32 | + | RR_NAME="@" | |
| 33 | + | RR_TYPE4="A" | |
| 34 | + | RR_TYPE6="AAAA" | |
| 35 | + | RR_COMMENT4="" | |
| 36 | + | RR_COMMENT6="" | |
| 37 | + | ||
| 38 | + | # remote ipv4 | |
| 39 | + | IPREMOTE4=$(curl -4 -sgkL https://ifconfig.me/ip 2>/dev/null) | |
| 40 | + | IPREMOTE6=$(curl -6 -sgkL https://ifconfig.me/ip 2>/dev/null) | |
| 41 | + | # echo "DBG: got ip ${IPREMOTE4}" | |
| 42 | + | ||
| 43 | + | # check if remote ips contain valid data | |
| 44 | + | # TODO: | |
| 45 | + | # get info about useful regex on ipv4 and ipv6 addresses | |
| 46 | + | ||
| 47 | + | # check if old IP4 is saved in file | |
| 48 | + | if [ -w "${IPFILE4}" -a -f "${IPFILE4}" ] | |
| 49 | + | then | |
| 50 | + | SAVEDIP4=$(cat ${IPFILE4}) | |
| 51 | + | # echo "DBG: saved ip is ${SAVEDIP4}" | |
| 52 | + | else | |
| 53 | + | # no existing ipv4 file, create one and add new ipv4 into it | |
| 54 | + | /bin/echo -n "${IPREMOTE4}" > ${IPFILE4} | |
| 55 | + | # echo "DBG: saved ip ${IPREMOTE4} to file ${IPFILE4}" | |
| 56 | + | fi | |
| 57 | + | ||
| 58 | + | #check for IP6 | |
| 59 | + | if [ -w "${IPFILE6}" -a -f "${IPFILE6}" ] | |
| 60 | + | then | |
| 61 | + | SAVEDIP6=$(cat ${IPFILE6}) | |
| 62 | + | # echo "DBG: saved ip is ${SAVEDIP4}" | |
| 63 | + | else | |
| 64 | + | # no existing ipv4 file, create one and add new ipv4 into it | |
| 65 | + | /bin/echo -n "${IPREMOTE6}" > ${IPFILE6} | |
| 66 | + | # echo "DBG: saved ip ${IPREMOTE4} to file ${IPFILE4}" | |
| 67 | + | fi | |
| 68 | + | ||
| 69 | + | # check if remote ip is identical as locally saved ip | |
| 70 | + | if [ "${SAVEDIP4}x" = "${IPREMOTE4}x" ] | |
| 71 | + | then | |
| 72 | + | # if remote ip is equal as locally saved (old) ip | |
| 73 | + | # echo "DBG: do nothing, ips are equal" | |
| 74 | + | echo >&2 "IPv4 identical. Nothing to do" | |
| 75 | + | else | |
| 76 | + | # ips differ, update dns ip with remote ip and save into local ip file | |
| 77 | + | curl -s -g -X POST -H "Authorization: Bearer ${AUTH_TOKEN}" \ | |
| 78 | + | -H "Content-Type: application/json" \ | |
| 79 | + | -d '{"records":[{"value":"'${IPREMOTE4}'","comment":"'${RR_COMMENT4}'"}]}' \ | |
| 80 | + | "${API_URL}${ZONE_ID}/rrsets/${RR_NAME}/${RR_TYPE4}/actions/set_records" > /dev/null | |
| 81 | + | /bin/echo -n "${IPREMOTE4}" > ${IPFILE4} | |
| 82 | + | fi | |
| 83 | + | ||
| 84 | + | if [ "${CHECK}x" = "truex" ] | |
| 85 | + | then | |
| 86 | + | # finally check (output actual json record saved on dns server) remote ip | |
| 87 | + | curl -s -H "Authorization: Bearer ${AUTH_TOKEN}" \ | |
| 88 | + | "${API_URL}${ZONE_ID}/rrsets/${RR_NAME}/${RR_TYPE4}" | ${JQ} "[.[] | .records]" | |
| 89 | + | fi | |
| 90 | + | ||
| 91 | + | # and repeat for ipv6 | |
| 92 | + | if [ "${SAVEDIP6}x" = "${IPREMOTE6}x" ] | |
| 93 | + | then | |
| 94 | + | # if remote ip is equal as locally saved (old) ip | |
| 95 | + | # echo "DBG: do nothing, ips are equal" | |
| 96 | + | echo >&2 "IPv6 identical. Nothing to do" | |
| 97 | + | else | |
| 98 | + | # ips differ, update dns ip with remote ip and save into local ip file | |
| 99 | + | curl -s -g -X POST -H "Authorization: Bearer ${AUTH_TOKEN}" \ | |
| 100 | + | -H "Content-Type: application/json" \ | |
| 101 | + | -d '{"records":[{"value":"'${IPREMOTE6}'","comment":"'${RR_COMMENT6}'"}]}' \ | |
| 102 | + | "${API_URL}${ZONE_ID}/rrsets/${RR_NAME}/${RR_TYPE6}/actions/set_records" > /dev/null | |
| 103 | + | /bin/echo -n "${IPREMOTE6}" > ${IPFILE6} | |
| 104 | + | fi | |
| 105 | + | ||
| 106 | + | if [ "${CHECK}x" = "truex" ] | |
| 107 | + | then | |
| 108 | + | # also check for ipv6 | |
| 109 | + | curl -s -H "Authorization: Bearer ${AUTH_TOKEN}" \ | |
| 110 | + | "${API_URL}${ZONE_ID}/rrsets/${RR_NAME}/${RR_TYPE6}" | ${JQ} "[.[] | .records]" | |
| 111 | + | fi | |
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