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Detecting 'stealth' web-crawlers
...nd will generate false positives when someone like me finds an interesting site that he wants to read all of, so he opens up all the links in tabs to load in the background while he reads the first one.
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Difference between the Apache HTTP Server and Apache Tomcat? [closed]
...omcat's web server is quite good, able to handle most small and medium web site needs. With support for Java NIO and 64-bit memory, even some larger scale web sites may be served well by Tomcat's Catalina module. For various reasons, some folks choose to ignore Catalina and instead use Tomcat's Serv...
How does RewriteBase work in .htaccess
...ases where mod_rewrite is running in a .htaccess file not at the root of a site and it guesses the wrong web path (as opposed to filesystem path) for the folder it is running in. So if you have a RewriteRule in a .htaccess in a folder that maps to http://example.com/myfolder you can use:
RewriteBas...
“There was an error while performing this operation”
I have a website in IIS for which I cannot open any of the settings like Authentication, Handler Mappings, Authorization Rules etc. It just shows the error message "There was an error while performing this operation", with no more details and points to web.config.
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App Inventor 2 列表代码块 · App Inventor 2 中文网
...异常、报错。
如果给定列表是一个二维列表，如 [["abc","123"],["xyz","456"]] ，则返回的列表项也是一个列表对象，如 ["abc","123"]。
求对象在列表中的位置
返回指定对象在列表中的位置，从 1 开始，如果不在列...
Painless way to install a new version of R?
...If you want to automate this further, you can specify this in the Rprofile.site file, which you find in the /etc/ directory of your R build. Then it will load automatically every time R loads, and you don't have to worry about that any more. You can just install and load packages from the specified ...
FB OpenGraph og:image not pulling images (possibly https?)
...n into the same problem and reported it as a bug on the Facebook developer site. It seems pretty clear that og:image URIs using HTTP work just fine and URIs using HTTPS do not. They have now acknowledged that they are "looking into this."
Update: As of 2020, the bug is no longer visible in Facebook...
Are default enum values in C the same for all compilers?
...tion:
Value of jan will be 0,feb will be 1,mar will be 2.
enum months{jan=123,feb=999,mar}
Explanation:
Value of jan will be 123,feb will be 999,mar will be 1000.
enum months{jan='a',feb='s',mar}
Explanation:
Value of jan will be 'a',feb will be 's',mar will be 't'.
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How to install plugin for Eclipse from .zip
...install Eclipse plugin from .zip? I have installed plugins by choosing the site and then check but never from .zip. Can anybody help?
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Do login forms need tokens against CSRF attacks?
...cure your login forms from CSRF attacks just as any other.
Otherwise your site is vulnerable to a sort of "trusted domain phishing" attack. In short, a CSRF-vulnerable login page enables an attacker to share a user account with the victim.
The vulnerability plays out like this:
The attacker crea...