适用于dynv6的DDNS脚本

萝卜大侠

折腾了一下第三方的IPV6 ddns,脚本如下，如果有人喜欢后续给大家做个ipk

1. #!/bin/sh -e
   
2. hostname=$1
   
3. device=$2
   
4. file=$HOME/.dynv6.addr6
   
5. [ -e $file ] && old=`cat $file`
   
6. 
   
7. if [ -z "$hostname" -o -z "$token" ]; then
   
8.   echo "Usage: token=<your-authentication-token> [netmask=64] $0 your-name.dynv6.net [device]"
   
9.   exit 1
   
10. fi
    
11. 
    
12. if [ -z "$netmask" ]; then
    
13.   netmask=128
    
14. fi
    
15. 
    
16. if [ -n "$device" ]; then
    
17.   device="dev $device"
    
18. fi
    
19. address=$(ip -6 addr list scope global $device | grep -v " fd" | sed -n 's/.*inet6 \([0-9a-f:]\+\).*/\1/p' | head -n 1)
    
20. 
    
21. if [ -e /usr/bin/curl ]; then
    
22.   bin="curl -fsS"
    
23. elif [ -e /usr/bin/wget ]; then
    
24.   bin="wget -O-"
    
25. else
    
26.   echo "neither curl nor wget found"
    
27.   exit 1
    
28. fi
    
29. 
    
30. if [ -z "$address" ]; then
    
31.   echo "no IPv6 address found"
    
32.   exit 1
    
33. fi
    
34. 
    
35. # address with netmask
    
36. current=$address/$netmask
    
37. 
    
38. if [ "$old" = "$current" ]; then
    
39.   echo "IPv6 address unchanged"
    
40.   exit
    
41. fi
    
42. 
    
43. # send addresses to dynv6
    
44. $bin "http://dynv6.com/api/update?hostname=$hostname&ipv6=$current&token=$token"
    
45. $bin "http://ipv4.dynv6.com/api/update?hostname=$hostname&ipv4=auto&token=$token"
    
46. 
    
47. # save current address
    
48. echo $current > $file

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使用方法

1. token=oUuMMyaHUgsboqGEijvf_L-eiFSyRM ./dynv6.sh luochongjun.dynv6.net usb0

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token请从自己的账户下获取，luochongjun.dynv6.net 是我的域名 usb0是我这里具备IPV6公网地址的接口，请自己根据实际情况替换
以上命令每次执行更新一次IP，可以自己写个定时任务来自动更新
可以使用nslookup命令来检查DDNS是否生效

junexx4437492

确实需要，第三方的DDNS总是有问题