How to install aclocal and libtoolize in CentOS

aclocal

Sometimes in building projects, we may meet an error seems as follow:

Can't exec "aclocal": No such file or directory ....

or

aclocal: Command Not found

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vsftpd: GnuTLS error -15: An unexpected TLS packet was received

TL;DR: Configuring vsftp is a difficult work and we always meet various of errors. In this post, I am going to introduce one possible solution of error "GnuTLS error -15: An unexpected TLS packet was received." when you are using vsftpd.

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A Quick Start of Scala II

TL;DR: In this post, I am going to continue having a quick introduction of using Scala. Please read the previous post first.

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A Quick Start of Scala I

TL;DR: In this post, I am going to have a quick introduction of using Scala.

Please read Programming in Scala for detail introduction, and this is just a quick start.

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Import gpg keys in Ubuntu 14 LTS

Installing deb repository requires gpg-keys some time. Recently, I am trying to add a mongo repository for Ubuntu 14, which requires to request some gpg keys first. Read more

Install Packages for LaTeX in CentOS 7

WP LaTeX is a excellent plugin helping us to use LaTeX in WordPress. In a new CentOS 7 machine, if I wish to activate this plugin with local library, I am supposed to use commands as follow: Read more

`ps` Command Not Found in Fedora Image in Docker

Docker is a lightweight virtual machine container. To minimize the image, most of the official distributions were erased most the unnecessary system tools. Read more