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Diffstat (limited to 'docs/libcurl/curl_easy_setopt.3')
| -rw-r--r-- | docs/libcurl/curl_easy_setopt.3 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/libcurl/curl_easy_setopt.3 b/docs/libcurl/curl_easy_setopt.3 index 92056b589..f389f98b4 100644 --- a/docs/libcurl/curl_easy_setopt.3 +++ b/docs/libcurl/curl_easy_setopt.3 @@ -505,6 +505,12 @@ Pass a long, this sets the timeout in seconds. Name resolves will be kept in memory for this number of seconds. Set to zero (0) to completely disable caching, or set to -1 to make the cached entries remain forever. By default, libcurl caches this info for 60 seconds. + +NOTE: the name resolve functions of various libc implementations don't re-read +name server information unless explicitly told so (by for example calling +\fIres_init(3)\fP. This may cause libcurl to keep using the older server even +if DHCP has updated the server info, and this may look like a DNS cache issue +to the casual libcurl-app user. .IP CURLOPT_DNS_USE_GLOBAL_CACHE Pass a long. If the value is non-zero, it tells curl to use a global DNS cache that will survive between easy handle creations and deletions. This is not |