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litespeed_wiki:licenses:failed-to-contact-license-server [2018/08/21 14:03] Eric Leu [Check your DNS server] |
litespeed_wiki:licenses:failed-to-contact-license-server [2018/08/21 16:09] Jackson Zhang [Check your DNS server and Disable IPv6 DNS server] |
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If you see the above, it means your server connected to the license server without any problem. Don't worry about "404 Not Found". It is normal. | If you see the above, it means your server connected to the license server without any problem. Don't worry about "404 Not Found". It is normal. | ||
- | ===== Check your DNS server ===== | + | ===== Check your DNS server and Disable IPv6 DNS server ===== |
- | If your server can connect to the license server without any problem but it still returns "failed to contact license server" | + | Check if there's any IPv6 DNS nameserver. Our license server does not like IPv6 mapped IPv4 addresses. |
<code>cat /etc/resolv.conf</code> | <code>cat /etc/resolv.conf</code> | ||
- | Check if there's any IPv6 nameserver, try commend out the IPv6 server record and try verify license again. | + | |
+ | nameserver 62.50.161.166 | ||
+ | nameserver 217.149.113.30 | ||
+ | nameserver 2620:0:ccc::2 | ||
+ | nameserver 2620:0:ccd::2 | ||
+ | nameserver 2001:4860:4860::8888 | ||
+ | |||
+ | If so, comment out the IPv6 server records and try to verify license again. | ||
+ | |||
+ | nameserver 62.50.161.166 | ||
+ | nameserver 217.149.113.30 | ||
+ | #nameserver 2620:0:ccc::2 | ||
+ | #nameserver 2620:0:ccd::2 | ||
+ | #nameserver 2001:4860:4860::8888 | ||