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What is the best way to check for Internet connectivity using .NET?
...inues to respond to pings. On the other hand, I cannot image a world where www.google.com does not return some HTML :)
– Daniel Vassallo
Jan 9 '10 at 1:01
3
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CORS - What is the motivation behind introducing preflight requests?
...ty practices, the server has to protect its resources in the face of any incoming request -- servers can't trust clients to not do malicious things. This scenario doesn't benefit from the preflight mechanism: the preflight mechanism brings no additional security to a server that has properly protect...
When is localStorage cleared?
...ipt.info/localstorage
https://dev.opera.com/articles/web-storage/
http://www.quirksmode.org/html5/storage.html
http://www.ghacks.net/2015/02/05/how-to-clear-web-storage-in-your-browser-of-choice/
https://nakedsecurity.sophos.com/2014/11/05/how-to-clear-out-cookies-flash-cookies-and-local-storage...
“Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl
...
488
On Debian I needed the following packages to fix this
sudo apt install libcurl4-openssl-dev li...
Is there a way to stop Google Analytics counting development work as hits?
...ript
if (window.location.host==="mydomain.com" || window.location.host==="www.mydomain.com") {
if (document.cookie.indexOf("COOKIENAME=COOKIEVALUE") === -1) {
// Insert Analytics Code Here
}
}
PHP
if ($_SERVER['HTTP_HOST']==="mydomain.com" || $_SERVER['HTTP_HOST']==="www.mydomain.com...
URLs: Dash vs. Underscore [closed]
...er Central
Consider using punctuation in your
URLs. The URL
http://www.example.com/green-dress.html
is much more useful to us than
http://www.example.com/greendress.html.
We recommend that you use hyphens (-)
instead of underscores (_) in your
URLs.
...
Deleting folders in python recursively
...
lqslqs
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linux 通过bind下搭建DNS Server - 更多技术 - 清泛网 - 专注C/C++及内核技术
...3H ) ; minimum
@ NS ryan.com.
@ A 192.168.1.5
www A 192.168.1.5
* A 192.168.1.5
vim /var/named/ryan.com.arpa
#插入以下内容并保存
$TTL 1D
@ IN SOA ryan.com. root. (
0 ; serial
...
How to convert unix timestamp to calendar date moment.js
...sDanillo Leão Lopes
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How can one check to see if a remote file exists using PHP?
...TP HEAD method via CURLOPT_NOBODY.
More or less
$ch = curl_init("http://www.example.com/favicon.ico");
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_exec($ch);
$retcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
// $retcode >= 400 -> not found, $retcode = 200, found.
curl_close($ch);
Anyway...