FreeBSD Tutorials and HowTos

Here you will find tutorial about FreeBSD unix operating system such as – configuration of network, PF firewall/packet filtering, NTA, FreeBSD kernel, building and installing packages, storage, networking services, including HTTP/HTTPS, FTP, NFS, SMB, SMTP, SSH, and NTP ( rss/feed ).

What is the correct format for a TZ (time zone) environment variable for use with the Linux or UNIX operating system?

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I’ve downloaded a file called file.tar.lzma tar ball from the Internet but I am not able to open tar ball. How do I open or extract a .lzma file under Linux or UNIX like operating systems using command line options?

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I have installed FreeBSD 8.x on my Laptop with Windows 7 in dual boot mode. But I’m unable to connect to the LAN or Internet using Atheros AR8132 card. How do I configure this card under FreeBSD?

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I know how to turn off console beep under Gnome Linux desktop. How do I stop console beep under FreeBSD operating systems?

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I‘m going to upgrade my FreeBSD 7.x server hard disks and going to send back the original 73GB hard disk to my vendor. I wanted to make sure that no one should able to use my personal data from old hard disk, especially files stored in /home/you/projects directory. I know how to use sDelete under MS-Windows to delete a file permanently. How do I permanently erase files under FreeBSD operating systems?

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I‘m using KVM to run multiple virtual machines under Redhat Enterprise Linux server 5.5. I’ve installed FreeBSD 7.x 64 bit as guest operating systems. How do I redirect the FreeBSD version 6, 7 or 8 virtual machine console to a serial port using virsh console command for management purpose from host itself?

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I get lots of e-bills (utility, telephone, Internet, mobile, cable and so on) in a PDF format for my small business and I need to forward those to my accountant. However, all PDFs files are password protected. I don’t want to share my account password with anyone to just open my bills. Evince is a PDF document viewer capable of displaying password protected files but it cannot remove the password. How do I remove a password from all PDFs under Ubuntu or any other Linux distribution in a batch mode?

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