It's great that Debian has support for multiarchitectures. Suppose some application works only on 32-two bit systems, and a 64-bit one is installed on the server. Simply install the necessary libraries for the i386 architecture and continue to work with the application.
It is done this way: (more ...)
OpenVPN is a software package that allows you to protect user traffic from “interception” by providing encrypted data transmission from the client’s device to the server with OpenVPN installed. Great for using public wifi access points where information can be intercepted by third parties. Or in the case when your ip is blocked on a certain site and you need to safely bypass this restriction.
Some CMS for sites may open pages with a slash at the end, and without it, if the engine does not redirect itself. For example, the page http://example.net/page and http://example.net/page/ from the point of view of the visitor will be one. But for search engines, these are two different pages, and slash is to blame for everything. So duplicate content is bad.
Create a self-signed certificate with two commands. It may be useful to administer the site via https, for example.
1. Create a key.
# openssl genrsa -out server.key 2048
2. Create a certificate. The domain example.com should be replaced with yours.
# openssl req -new -x509 -key server.key -out server.crt -days 3650 -subj /CN=example.com
Firefox browser returns to Debian instead of Iceweasel.
To install the latest version of Mozilla Firefox you will need to perform several steps The first is to add the following lines to the /etc/apt/sources.list.d/firefox.list file:
# echo -n "deb http://mozilla.debian.net/ jessie-backports firefox-release"> /etc/apt/sources.list.d/firefox.list
When using iceweasel, I found a very unpleasant moment: if you click on the scroll wheel on a mouse in an arbitrary place on the page of any site, then instead of displaying the scroll icon, a page is opened in a new tab.
This problem is solved as follows. You need to open the about: config page in your browser, find the general.AutoScroll parameter and set it to true .
Today I looked into the access-log of one site for WordPress and found many requests of this kind:
1.234.83.77 - - [05 / Sep / 2014: 12: 07: 01 +0600] "POST /xmlrpc.php HTTP / 1.1" 200 441 "-" "Mozilla / 4.0 (compatible; MSIE 9.0; Windows NT 6.1; 125LA ; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022) " 1.234.83.77 - - [05 / Sep / 2014: 12: 07: 01 +0600] "POST /xmlrpc.php HTTP / 1.1" 200 441 "-" "Mozilla / 4.0 (compatible; MSIE 9.0; Windows NT 6.1; 125LA ; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022) " 1.234.83.77 - - [05 / Sep / 2014: 12: 07: 02 +0600] "POST /xmlrpc.php HTTP / 1.1" 200 441 "-" "Mozilla / 4.0 (compatible; MSIE 9.0; Windows NT 6.1; 125LA ; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022) " 1.234.83.77 - - [05 / Sep / 2014: 12: 07: 02 +0600] "POST /xmlrpc.php HTTP / 1.1" 200 441 "-" "Mozilla / 4.0 (compatible; MSIE 9.0; Windows NT 6.1; 125LA ; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022) "
Judging by the results of Google, there is some kind of exploit related to this file - xmlrpc.php. In one article in English it was said, as I understood, relying on my poor knowledge of the given language :), about the possibility of organizing the password selection. True, so far I have not noticed the consequences, but it is better to take action in advance. :)
xCache is a php bytecode caching program to speed up script execution. Like, for example, eAccelerator or PHP-APC.
If you have servers to which you connect via VNC, then you definitely need a client to connect. There are several such clients in the Debian repositories. I will describe a couple I liked. ;)
With authentication by a key on ssh, being connected with Windows, understood. What about the use of the same key, only for authentication when connecting from a computer running Linux? PuttyAgent for Linux is not, and Linux does not understand the .ppk format.