Centos version command. How do I know which version of CentOS I'm using? How to find out which CentOS operating system is installed on the server

How to update the CentOS operating system

It is important to know if you are using the latest version or not and what updates are available for your version. Or bring both of them out together. Keeping the kernel update is necessary for bug fixes and security fixes. The kernel version in the above release is 32. The architecture is 64 bit.

It's always great to have complete information about the system.

• In the section you will find the panel version.
• In this example, version 30.
• Go to information → System information.

What is CentOS. Advantages and disadvantages

However, you can also offer separate 32-bit and 64-bit versions of the software. Some provide Additional information in addition to whether the system is 32-bit or 64-bit. The following information is printed on the screen in the following order: kernel name, network node host name, kernel version, kernel version, hardware name, processor type, hardware platform, operating system.

The hardware name indicates whether your system is 32-bit or 64-bit. Note that the processor type and hardware platform also indicate 32-bit or 64-bit. This displays only the name of the hardware and indicates, as stated above, whether your system is 32-bit or 64-bit.

You can also use the "file" command with a special argument to find out whether your system is 32-bit or 64-bit. The following output is displayed on the screen. The text in red indicates whether your system is 32-bit or 64-bit.

What operating system do I have?

The Details screen appears. If you don't know which operating system you are using, you can easily find the operating system and installed version. You can find out how to do this here. Therefore, it is not surprising that many users overlook the question and wonder what operating system is installed on their own computer in the first place. Especially when you want to buy or install a new one software, you are usually asked for the operating system and version for which you would like to obtain the corresponding program.

The most common operating systems can be quickly seen using screenshots. Among other things, you also see whether you are using. . Then press the Enter button. Beginning of the gallery. Then simply follow these steps.

• A small window will open.
• The version name appears at the top and the version below it.

• In the section you can see the panel version.
• This example is version 30.

The first thing you need to do is access a terminal to the computer you want to update. Here you can see the version you have installed on the server right now. However, some manufacturers have corrected previous versions, which are available for immediate update, so you should check that the version was compiled from April 7th. In this case, the version is quite old and, although it is safe to be even before the first version affected by the security bug, we will update it equally.

We explain how to do this on the most common distributions. To do this you need to follow these steps. It is very easy to update, you will only need to run this command and if everything goes well, it will update automatically.

Once complete, as with other systems, ensure that the library's compilation date is later than April 7th. You can add the appropriate repositories manually, although it will soon be available for any installation. In all cases, after installation you should check that everything went well. To do this, run the following command.

From words to deeds

You will see that the compilation date has changed and if all goes well it will be after April 7th. It only takes a few minutes and you will avoid any risk. Service and version discovery. People sometimes run different services on unexpected ports. This can help you determine which attacks may affect the server by knowing exact number server versions. Versions provide this information.

Of course, most services don't provide all of this information. Please take a few minutes to post this information to help everyone. Version detection is enabled and controlled by the following settings. Enables version detection as described previously.

Probes with low numbers act against a large number of common services, while those with higher numbers rarely use time. The intensity level indicates which probes should be used. The higher the number, the greater the likelihood of identifying the service.

However, high intensity sensing takes longer. This lightweight mode allows for faster version detection, but also reduces the likelihood of detection of some services. This option is automatically enabled as part of version detection if you select it. The most important parameters to configure are.

For educational use It's better to be functional and not activate safe mode. Show errors on the same pages if you have them. . Click links to go deeper into a subject. When you're done, you'll usually want to run a test at the end to check if everything works correctly - using a function.

In any case, the result should look like this. These commands can be run locally or on remote server, which you have access to. But it's especially useful for getting information about a remote web server. The desired result will appear in the middle of the list.

If you have curl installed, you can also use it to get the result. Use it to see only what's important. For security reasons, administrators usually hide this type of information from the public. For this reason, some servers may not make it available. Read more about this.

If you want to know everything about it, keep reading! On average, a new update is released every 6 months with latest version core software packages, binaries and libraries. This should be set up as follows. However, you may not have a network configuration to complete the installation.

How to find out which CentOS operating system is installed on the server

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The result will look like this. Serves the operating system to connect to itself and therefore has no special meaning. Remember, however, that you need to be connected to the Internet to download the package. But we see essentially what it is and what is happening. Not without some debate about how the phallah is passed down.

Now imagine that the blockage to traffic movement and communication with all these services could potentially be revealed to anyone who knows the error, and you will understand the enormity of the problem. Which web companies are interested? Service providers, social media, webmail, online banking are potentially interested. The advice remains to change the password after logging in. The guides will be divided into macro areas.

Know the operating system

Let's start with system management. Sometimes you need to be sure of the operating system version, the most classic of commands by far. It's easier here, just give the command.

Know your car's running time

Instead of checking the uptime, we might want to know the date of the last reboot. The command should return a list of the last reboots, but this is unreliable, for example, when installing new kernels this information is lost, and some distributions do not seem to save this list, only the last reboot.

Car name and options

To find out the name of the machine, we will use the command. First in time we saw that you can consult the time, if we want to know the date, we will give a command. But let's go beyond that, for example, if we want to know what our time will be for a particular melt, for example, we want to know what time it will be here when it's 9 a.m. next Thursday in Los Angeles, we'll give this command.

Very helpful for discrepancies, or don't miss the webinar! One of the most unknown teams, probably. Which will return the result with the current month's calendar and the current day. With a simple -3 option you will see the previous month and next month. All shells are written by the user before the shell, but in some situations you need to know who the user is running on that shell, in that case use the command.

In this first chapter, we saw how information about a system can be obtained. In the next article, we will see how to find information about the hardware that runs the operating system. And today we are starting the process by providing a clear governance model, increasing transparency and access.