Best performance UNIX just for HOST Virtualization? Post: 303011914

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Top Forums UNIX for Beginners Questions & Answers Best performance UNIX just for HOST Virtualization? Post 303011914 by danallen on Thursday 25th of January 2018 11:54:58 AM

01-25-2018

Registered User

This is the old Chevy vs. Ford argument. Not to be rude, but really, this isn't the most constructive question. I can understand wanting some help picking your Linux, but the truth is there are many great distros to choose from, and there is no one that is the best for everyone using it for virtualizing servers or anything else.

There is a certain distro I am partial to, but when I read about why people prefer certain other distros, I always am impressed by the good reasons they have. I believe there is no correct answer to your question.

I think those disclaimers are important, but now I am going to tell you why I run Debian virtual machines. Debian came to me as rumor. same as God, Heaven, and Hell. People seemed to say Debian was really stable. I started with another distro and that is how I found out what people mean by "Debian is really stable." At first I thought I wanted something more cutting edge.

Let me tell you what I like most when it comes to my servers: forget about them I want then always on and running like electricity. Every second I have to put into making my server work is a second I could devote instead ti a task that makes me money. No one pays me to run my servers. They pay me to make the software I make on my servers.

You know how system updates have habit of breaking stuff? Debian doesn't do that. I really like it when my plans for a day are not cancelled because something gone wrong with my server that I have to deal with instead.

As far as I am concerned there is nothing Debian cannot do that any system can do. it always does it great. There is a big number of other distros that are based Debian. I think the way it works is they take Debian and do stuff to it then release it. I guess those other distros have features doesn't have, but I have no idea what they are.I have come to love stability and someone will correct me if I am wrong, but Debian is a gold standard for stability. Debian is the source.I don't really know, but I think Debian might be the best software ever. Debian is the only software I ever worked with that always impresses me and never disappoints. I only use Debian as VMs hosted on a computer available to me for hosting. The host does not matter Debian matters. I do not use Debian desktop software yet.

So there you have it, my dumb answer to your ____ question. I hope it helps.

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curlopt_resolve

CURLOPT_RESOLVE(3)					     curl_easy_setopt options						CURLOPT_RESOLVE(3)

NAME

       CURLOPT_RESOLVE - provide custom host name to IP address resolves

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESOLVE,
				 struct curl_slist *hosts);

DESCRIPTION

       Pass  a pointer to a linked list of strings with host name resolve information to use for requests with this handle. The linked list should
       be  a  fully  valid  list  of  struct  curl_slist  structs  properly  filled  in.  Use  curl_slist_append(3)  to  create   the	list   and
       curl_slist_free_all(3) to clean up an entire list.

       Each  single  name  resolve string should be written using the format HOST:PORT:ADDRESS where HOST is the name libcurl will try to resolve,
       PORT is the port number of the service where libcurl wants to connect to the HOST and ADDRESS is the numerical IP address.  If  libcurl	is
       built to support IPv6, ADDRESS can of course be either IPv4 or IPv6 style addressing.

       This option effectively pre-populates the DNS cache with entries for the host+port pair so redirects and everything that operations against
       the HOST+PORT will instead use your provided ADDRESS. Addresses set with CURLOPT_RESOLVE(3) will not time-out from the DNS cache like ordi-
       nary entries.

       The provided ADDRESS set by this option will be used even if CURLOPT_IPRESOLVE(3) is set to make libcurl use another IP version.

       Remove names from the DNS cache again, to stop providing these fake resolves, by including a string in the linked list that uses the format
       "-HOST:PORT". The host name must be prefixed with a dash, and the host name and port number must exactly match what was already added  pre-
       viously.

DEFAULT

       NULL

PROTOCOLS

       All

EXAMPLE

       CURL *curl;
       struct curl_slist *host = NULL;
       host = curl_slist_append(NULL, "example.com:80:127.0.0.1");

       curl = curl_easy_init();
       if(curl) {
	 curl_easy_setopt(curl, CURLOPT_RESOLVE, host);
	 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");

	 curl_easy_perform(curl);

	 /* always cleanup */
	 curl_easy_cleanup(curl);
       }

       curl_slist_free_all(host);

AVAILABILITY

       Added in 7.21.3. Removal support added in 7.42.0.

RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_IPRESOLVE(3), CURLOPT_DNS_CACHE_TIMEOUT(3), CURLOPT_CONNECT_TO(3),

libcurl 7.54.0							   May 17, 2016 						CURLOPT_RESOLVE(3)