If your site respond to urls that contain uppercase and lowercase characters (the same page responds to urls: yourdomain.com/my-Url, yourdomain.com/my-url), taking into account SEO parameters that is not good since the search engines are case-sensitive so you'd have more than one page indexed with the same content. A trick you can use is to convert all urls to lowercase, so:
Convert url to lower case using Apache HTTP Read More »
One of the easiest and safest ways to find duplicate files on GNU / Linux files is using the tool fdupes, fdupes find duplicate files comparing the file sizes, making a check MD5 followed by a byte to byte comparison.
Find duplicated files in GNU/Linux Read More »
According to Wikipedia:
LibreOffice is a free office suite compatible with Microsoft Windows, Mac and GNU/Linux. It has a text processor (Writer), a spreadsheet (Calc), a presentations creator (Impress), a databases manager (Base), a vector graphics editor (Draw) , and an editor of mathematical formulas (Math).
To the previous definition, I would add that it is also compatible with BSD OS (FreeBSD, OpenBSD, NetBSD).
LibreOffice covers a wide range of office needs and therefore can replace proprietary suites such as: Microsoft Office.
Install LibreOffice in Debian GNU/Linux Read More »
I have made changes to the configuration of Sendmail but when I run: m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf I get the following error:
m4:/etc/mail/sendmail.mc:10: cannot open /usr/share/sendmail-cf/m4/cf.m4: No such file or directorySolve cannot open /usr/share/sendmail-cf/m4/cf.m4 Read More »
If you are rewriting urls using mod_rewrite module and you think that all your rules and regular expressions are OK but do not work then you must take a look the following directives:
Debugging rewriting urls with mod_rewrite Read More »
sendEmail is a tool developed in Perl without dependencies of external modules, which allows you to send emails from the command line, it is easy to use and rich in features.
Send email from the command line Read More »
To know the files contained in an installed package, run the dpkg command in Debian/Ubuntu and derivatives and rpm command in CentOS/Fedora/RHEL
Listing files contained in an installed package Read More »
P. The default Eclipse keybinding comes into conflict with XFCE default keybinding, Eclipse use CTRL + ALT + ↑ and CTRL + ALT + ↓ to duplicate and copy text lines respectively, while XFCE used them to change from a higher to a lower workspace or vice versa. How to change this behavior?
R. To resolve the situation above you can follow one of the following procedures
Change keybinding
Windows->Preferences->General->Keys[caption id="attachment_1261" align="alignleft" width="630"]
Eclipse, change the keybinding for copy and paste actions[/caption]
Eclipse, change the keybinding for duplicate and copy actions
[caption id="attachment_1262" align="alignleft" width="630"]
Eclipse, change the keybinding for copy and paste actions[/caption]
Xfce Menu->Settings->Windows manager[caption id="attachment_1260" align="alignleft" width="630"]
XFCE keybinding settings[/caption]
How to resolve keybinding conflict between Eclipse and XFCE Read More »
fuseiso is an utility that allows you to mount ISO, BIN and NRG images in the userspace file system then you can browse them with any file manager such as any directory can be inspected.
Debian/Ubuntu and derivatives
$ sudo apt-get install fuseiso
CentOS/RHEL
Enable rpmforge
# yum install fuse-iso
$ fuseiso -p my.iso access-point
access-point = DIR where you will mount the image
– See 7-Zip – An excellent archive compressor / decompressor
– man fuseiso
Mount ISO, BIN and NRG images Read More »
7-zip is a file compressor with a high ratio of compression. The main features are:
7-Zip – An excellent archive compressor / decompressor Read More »