How to secure Ubuntu Server

[Santy]

Hi,
To setup a server on Ubuntu based OS what are the options I can use to secure my server more. Usually Linux based OS are much more secure than any other. I had find and bit worked on public key cryptography which helps out to generate a public and private key.But other than this what more can be under under user account management and file system support.

[Milton.J]

Normally Ubuntu is a very secure platform. There is very less to do on it. But if you are specifically concern with the security then you can crate user accounts for the same. In many aspects user account management is the easier way to deal with the Ubuntu server security. Ubuntu is inherited with the Debian's User Administration model. So if you have worked on this before than that does be a hard job.

[Spyrus]

The OS do not enables the root or administrator by default. That needs a manual configuration. So this becomes the great security advantage for the server. The first users which you add during the installation is the first who lies in the place of admin group. He can use the Sudo command to perform administration task. You can then add more by the following command : $ sudo adduser username admin.

[Snake08]

It will be better practice if you use deluser in the place of add user to delete a user from group. And you must be also ware that sudo is just not a command for user accounts management but a advance tool that can also help you to handle permissions. Means the rights of user to execute any command or enjoy any extra privileges on the server.

[Zachary]

PSOX model is a type the model for files which are normally standardized across most of the Unix type OS. Here there are three types of modes are used to get an access to each file or directory which is owner, group & others. This is exactly similar to all the other Linux Distribution. This makes you server more secure by this modules of implementation.

[Big Fish]

You might have heard about the nodev option. It is a file mount option which help s to create or use a special device file. There are many types of file system that you can use and apply under Ubuntu platform. Your work will normally depend on the behavior of outer world. There is one more file system called as noexec which is flagged as noexec which does not allow any type of executable.

[Big Fish]

You might have heard about the nodev option. It is a file mount option which help s to create or use a special device file. There are many types of file system that you can use and apply under Ubuntu platform. Your work will normally depend on the behavior of outer world. There is one more file system called as noexec which is flagged as noexec which does not allow any type of executable.

[Tasha Faith]

In general, Ubuntu Server is a very secure platform. The Ubuntu Security Team, the team that produces all official security updates, has one of the best turnaround times in the industry. Ubuntu ships with a no open ports policy, meaning that after you install the machine -- be it an Ubuntu desktop or a server -- no applications will be accepting connections from the Internet by default. Like Ubuntu desktops, Ubuntu Server uses the sudo mechanism for system administration