Transmission Control Protocol (TCP)

The Transmission Control Protocol (TCP) is one of the core protocols of the Internet protocol suite. TCP provides reliable, in-order delivery of a stream of bytes, making it suitable for applications like file transfer and e-mail. It is so important in the Internet protocol suite that sometimes the entire suite is referred to as "the TCP/IP protocol suite." TCP is the transport protocol that manages the individual conversations between web servers and web clients. TCP divides the HTTP messages into smaller pieces, called segments, to be sent to the destination client. It is also responsible for controlling the size and rate at which messages are exchanged between the server and the client.

Want a list of users on your FreeBSD?

If you ever want a list of users on your system, use this little script:

cat /etc/passwd | cut -d: -f1 | grep -v \#

The cut command selects portions of a file. Use ":" as the delimiting character. And we want only the first field. The grep eliminates lines with # in them, which normally appear at the start of the password file. Exercises for the interested and motivated:

• try the above command without the grep
• remove the \ before the #
• try -f5 instead of -f1.

Hope that helps.

Thank's to : The FreeBSD Diary

Sharing file using Samba on CentOS 4

Following I submit, way of using samba at CentOS. For other OS, usage of samba nor different far.

1. Install Centos 44 Don't forget when install there are option Firewall and selinux, please select;choose option “ no firewall” and Selinux chooses “ disable”.

Making Windows XP More Faster - Part 2

1. SPEEDUP FOLDER ACCESS - DISABLE LAST ACCESS UPDATE If you have a lot of folders and subdirectories on your computer, when you access a directory XP wastes a lot of time updating the time stamp showing the last access time for that directory and for ALL sub directories. To stop XP doing this you need to edit the registry. If you are uncomfortable doing this then please do not attempt.
   Read more... Add new comment

Making Windows XP More Faster - Part 1

Some of the working tweaks you can do to your Windows XP can really be a blessing to your system’s speed. So I thought about sharing with you the safe tweaks on how to have a faster Windows XP. As a disclaimer do the following tweaks at your own risk.

Disable CD Autorun on Windows XP

To Disable CD Autoplay in Windows XP Pro

1. Start/Run/GPEDIT.MSC
2. Computer Configuration/Administrative Templates/System.
3. Locate the entry for Turn Off Autoplay and modify.

Setting up a basic MikroTik hotspot

Mikrotik RouterOS includes an excellent hotspot solution. Read on for details on getting a basic hotspot going using RouterOS on any standard x86 PC hardware or a RouterBOARD. The RouterOS hotspot solution is very powerful and only the very basics of the solution are covered here; just enough to get you started.

Drop port scanners on Mikrotik

To protect the Router from port scanners, we can record the IPs of hackers who try to scan your box. Using this address list we can drop connection from those IP in :

Setting Up Atheros AR5BXB63 on Ubuntu 8.04

I have Atheros AR5BXB63 chipset for my wireless card in my Laptop, when i install Ubuntu 8.04, there was problem to detect my wireless card.
I have done the following and it works now:

How to Fighting against unknown worm from Linux

This worm infecting user, by disguise user with Microsoft Windows folder icon, to open executable file that contain worm. How to delete: (From Linux console)