I recently had to move from one machine to another about 50 GB of data, divided into hundreds of thousands of small files, and i had no additional space on the machine to make a zipped tar and then move it comfortably, I tried a scp, but after 45 minutes it had moved around 2 […]
You are root on your system, you do a rm of a file and get a “rm: can not remove` test ‘: Operation not permitted” is this possible? Yes, if there are any special extended attributes set on your filesystem. The “interesting” thing is that also some rootkit use these attribute after have changed some […]
After my previous article 7 Practical uses of Openssl I have received many comments and suggestions of other possible uses of this excellent program. With this article, i’ll show you other uses of the openssl command used from the command line.
In a previous article we saw the basics of encryption and asymmetric key used in the e-mail. On Linux the most used and popular programthat deals with security and encryption is OpenSSL . OpenSSL is an open source implementation of the SSL and TLS protocols. The core library (written in the C programming language) implements […]
Sometimes it happen to find in our file system files with strange names, with that i means files with non-alphanumeric characters or spaces between different words, maybe uploaded by users, or files produced by mistake by someone or some program, and unfortunately is often not trivial to do a mv < file > or rm […]