Differs between Lennox five, six and seven now, as you're going to learn, Lennox, and you understand
Lennox, you know that you will be upgrading your system from different versions.
And the reason companies are Linux distribution companies come up with different versions is because
they enhance their features, existing features, add new features and fix a lot of bugs.
So the reason I'm including this as part of the lesson, part of the training is because maybe you have
experience in RedHat or S.O.S five or six and now you.
It's time to move on to seven.
And of course, in my training is everything on seven.
So you should really know some of the differences, the primary differences between all these versions.
So S.O.S and Réal or RedHat, what are the major differences?
Well, as I mentioned a few times, S.O.S and Réal are both exactly the same.
The only and only difference is that is that RedHat provides support, technical support to the customers
and they also provide patches and break fixes, whereas S.O.S they do not it's a it's a free software
and you could get support on the community.
You just have to wait for someone to reply back when you post to answer your question.
So that's a primary difference.
Now, what are the total versions of S.O.S and Rel RedHat?
All the story from version zero through all the way to seven up to now, whereas S.O.S actually spun
off the off of RedHat when I had was at version two.
So again, the versions are the primary version that we will be discussing our version five, six and
seven.
I have a cheat sheet which I have also attached with this lesson.
I'm going to cover that cheat sheet which you which will enable you to go over it and find out what
exactly the differences are.
So let's open up my cheat sheet.
It's a PDF document and I'm going to cover really quickly the differences of RedHat five, six and seven.
And please don't be surprised by looking at, hey, this is only Readhead.
What happened to S.O.S?
As I mentioned, S.O.S and RedHat is exactly the same.
So let's start off with the first section right here.
SIS system basics.
So via subscription information in five head system ID six, no changes.
Seven, we have subscription manager, which is the newer command with identity configure subscription.
When you want to register your system with RedHat or RedHat Satellite, then you run the command.
Oricon Underscore Register five six, the same thing, then five and then at six they introduced subscription
manager as well along with Origin Register and in seven its subscription manager.
But now Rahni underscore register as someone deprecated uploading.
Going to find in a lot of system a new version, new system information, how to get support, Demidenko
hardware browsers.
Some of these commands we have already learned stays the same in six and seven.
The last command changes to H.W. Bush's list hardware to view the RedHat version information.
It is Etsi RedHat release.
It's the same across all the words.
Nothing has changed.
All you have to do is carry out this file and you will see the difference.
You will see the versions of your S.O.S or RedHat operating system.
So this is a robust system.
BASIX moving down the basic configuration then you configurator system.
There is a command in five and six system Dasch config and follow by second or third of the commands
attached to it.
You can look it up and you do s minus L on again.
You'll find these commands in seven.
They changed to Genom Control Center Configure Network.
We have done that system config network is a GUI based as well and AM CLIA is the new utility there.
You should get yourself a milliwatt run.
This command.
This will allow you to configure your network and then configure system languages, different commands
in six and seven configure time and date.
We have A.P. and all the words five and six and the newer one is cronie.
Chronic ah chronic.
D is the team.
And you can modify the sequence to compile the cover that already in and I believe module seven, then
configure keyboard a couple of different commands from five to six textbook configuration tool.
There are a few different differences, but the same across all versions.
Configure printers.
I'm sure you don't have to worry about it because a lot of times the next servers are not attached to
Linux, sorry to printers or fax machines, configure sambar, same commands, nothing changed.
Configure association, nothing changed.
Everything is in sync now.
And I'm talking about jobs and services.
There is configure.
Logging is is a system for file in five and in six.
They change to our Sasselov dot com file because R stands for remote.
So you could also get remote logs from remote servers.
So they enhanced it.
Added new features.
Réal same thing.
A system is completely gone now.
It's replaced with RSS long list of services you could do check config dash dash lifts.
This is to see what are the services that are enabled at boot time.
But in seven it has changed.
Everything is controlled by a system CTM.
Now if you want to see the list of all the services you could do System CTL, I believe based dash dash
list, it'll give you all the listing of services that are running or axios list running process service
dash status all in rul seven again is system ctl start and stop the Service Service Command Service
Command.
And here we have systems command system key element.
These are the type of service we learn in Module seven.
So pay close attention how they are changing.
So don't be surprised.
You should know both commands because if you are going into an environment where they have a RedHat
four or five or six and seven as well, so you should know which command can be used where there aren't
a lot of changes in the command, but some of these commands that will make a difference.
So that's why I want to make sure the code check config is a command that will enable service at boot
time and now System CTL.
Does that service the same thing, check config, same thing.
We talk about the same thing.
Wrong levels.
Now run level is being controlled by system CTL as well.
That run that level can be changed by going to ETSI in a tab.
Now it is going through the command line.
You could change, you can make the changes to the one level by running these commands view logs, nothing
changes and warlord warlord.
But now there's a new command called Journal CTL which will provide you more information about the logging
configure system audit.
We do not have code that this is more of a system that are facing on the Internet or more vulnerable
to this hackers attack.
But most of the systems, most of the Linux machines are behind firewalls.
So there isn't much you have to know about this.
But it's good that you should know and nothing has changed.
That's the main thing.
So not to worry about what you need to know, what you don't at Pam Dot system part, if you remember,
we covered that in and in a lesson where I the lesson were we are doing all always hardening how to
harden or secure your system.
Moving on Quraan ajab everything is the same.
I'm not going to cover every detail here because all of them are same.
Nothing's changed.
Then we have Colonel Bhoot and hardware.
What has changed a single user rescue mode.
Some of these changes are what the configuration file changes shut down before we had shut down just
to command.
But now you run system CTO followed by the shutdown.
Same thing.
Everything is the same, same commands.
Except now you define systems command preceding the actual command.
The final change we talked about, this group for location has changed the rest of the same.
Nothing has changed then software management is yum.
Install Yum group, install everything.
The command itself.
Yum is the same except this part where they had Jume group install as one word.
Now they have added space between group and install.
Now someone would ask me a question, hey Emraan, why would they make these changes or why they.
Space, why they make up a commander.
Honestly, this just I don't know, that's the way the standard works.
It's just that, like, you could ask a question why Apple comes up with a different look of a different
icons.
They just want people to embrace newer features, new technology, new icon.
So that's what pretty much it.
Of course, I also think that, you know, looking at the same thing again and again, you get bored.
The change is always good.
That's why every window, every operating system provider to make changes like Microsoft and RedHat
Solaris anyway.
So on moving, let's move to the right side.
I'm going to go up all the way to the top.
And the task is user management.
Nothing change everything to create user delete, user change, password, everything is the same.
So you don't have to worry about user management, security and identity.
I'm glad nothing changed because security is something if you don't want to mess with.
If you make a mistake, it could make your system vulnerable or create a leak in your system anyway.
Nothing has changed.
Or you don't have to remember any new file systems.
Let's see file system volumes and disks.
There are a few things that have changed in real five and six.
We had file system three, four and seven.
We have Zeppos.
Every new version have a newer, faster file system now except this is a lot faster.
I covered that in module two or module three.
I covered by the files of what Paul system is.
Then some of the changes like part disk they added new utility coming down to Monifa system looks the
same.
We create creating value management.
Everything looks the same.
There's nothing changed on on mounting the PA system or dealing with file system.
Then we have no working IP tables is the command to enable firewall rules.
Now we change it to firewall that CMD firewall that config, which is a GUI.
This is something that we covered in module seven.
Then we have to configure DCP client.
A few of the configuration files changed at C resolved as he hostname.
Where did you find your hostname.
Same thing at C host at C resolved Horcoff.
But now they add a new utility, NMC, Alikhan and Odey.
I believe this command updates these files for you so you'd have to manually add them.
I never used it, but if you want to fight, go ahead and use it.
Configure hostname etsi sassed config network and now the newer utility is hostname ctl.
We covered that when we were changing the hostname.
I believe in module four.
IP is the new command.
We have IP configured and mostly we covered in our training.
Now the newer version of seven has IP command, so IP config has been deprecated.
You could have that command if you install net dash utility package that will allow you to run if config
but don't get used to it.
Just, you know, be ready to use a new command which is IP configure network interface.
The pack is the same.
Nothing's changed.
But now you could do update or add IPS or update your configuration files to the command and MCO like
the rest looks the same going to resource management.
All these commands are the same top PSR top, a few commands they probably added.
It looks like tuna, tuna.
I really don't know what it does, but I should look into it and you should too.
The new things.
It's definitely something with the resource management.
It tells you what other resources are available.
What are the areas of contention on the network side was distressed resources.
So anyway, you disconfirmation DFI Homestead, we both cover that and the rest of the commands are
all the same.
So these are the commands I wanted to cover.
So you should be familiar and be ready when you see new commands.
Don't be surprised.
Hey, I never heard that in in the training.
So it's there guys try these commands out and be ready to face the challenges and actually corporate
environment.