01-05-2016
We have a bank of static IPs we purchased from Comcast, and we have been dealing with loss of access for a long time and applying all sorts of bandaids, from new routers to having a tech come in to resetting equipment. Access is a problem with all protocols -- http, https, ssh, sftp, tcp -- and the failure is a timeout. There is apparently some routing algorithm being used that gets lost somehow, through all configurations of equipment we have. All eight servers are affected. Just those IPs, and just internally, and just intermittently. Aggravating. So until it gets solved, we need to have a workaround for, in this particular case, http, since we have a workaround for ssh/sftp.
---------- Post updated at 03:14 PM ---------- Previous update was at 03:10 PM ----------
We use both IPs and the domain/URL. All are affected. The machines attempting to access it are Mac OS X, Windows and Linux, several of each, and they all encounter the same timeout. The "hairpin" through the other server works fine for ssh and sftp, but not http for our graphic apps.
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LEARN ABOUT MOJAVE
curlopt_proxytype
CURLOPT_PROXYTYPE(3) curl_easy_setopt options CURLOPT_PROXYTYPE(3)
NAME
CURLOPT_PROXYTYPE - proxy protocol type
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXYTYPE, long type);
DESCRIPTION
Pass one of the values below to set the type of the proxy.
CURLPROXY_HTTP
HTTP Proxy. Default.
CURLPROXY_HTTPS
HTTPS Proxy. (Added in 7.52.0 for OpenSSL, GnuTLS and NSS)
CURLPROXY_HTTP_1_0
HTTP 1.0 Proxy. This is very similar to CURLPROXY_HTTP except it uses HTTP/1.0 for any CONNECT tunnelling. It does not change
the HTTP version of the actual HTTP requests, controlled by CURLOPT_HTTP_VERSION(3).
CURLPROXY_SOCKS4
SOCKS4 Proxy.
CURLPROXY_SOCKS4A
SOCKS4a Proxy. Proxy resolves URL hostname.
CURLPROXY_SOCKS5
SOCKS5 Proxy.
CURLPROXY_SOCKS5_HOSTNAME
SOCKS5 Proxy. Proxy resolves URL hostname.
Often it is more convenient to specify the proxy type with the scheme part of the CURLOPT_PROXY(3) string.
DEFAULT
CURLPROXY_HTTP
PROTOCOLS
Most
EXAMPLE
TODO
AVAILABILITY
Always
RETURN VALUE
Returns CURLE_OK
SEE ALSO
CURLOPT_PROXY(3), CURLOPT_PROXYPORT(3),
libcurl 7.54.0 February 06, 2017 CURLOPT_PROXYTYPE(3)