Determine Systeminfo in Linux

In windows:
 Systeminfo /s <ipaddress of the remote computer>

will display information about Windows system.
have read on how to do it in Linux, I found that : nmap -O command will do the same.

I am trying it on Centos, but does not work:
nmap
jskfanAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

slubekCommented:
You don't have nmap installed
Do:
# yum install nmap

Open in new window

0
Shiju JacobInfo Security ManagerCommented:
But nmap will only show the port related info

you can use couple of commands
cat /proc/cpuinfo
cat /proc/meminfo
cat /proc/version
cat /etc/*release*
uname -a
lspci
lsusb
 lsblk
dmidecode | less
0
slubekCommented:
@Shiju Jacob: jskfan asked about remote OS fingerprinting. Your commands give an information about local system. nmap -O is the proper tool in Linux.
It only has to be installed as it is not part of default CentOS installation.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Determine the Perfect Price for Your IT Services

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden with our free interactive tool and use it to determine the right price for your IT services. Download your free eBook now!

jskfanAuthor Commented:
Apparently the OS I installed does not know the command.
I have download and installed :CentOS-7.0-1406-x86_64-Everything.iso
I cannot install nmap.
yum
0
slubekCommented:
"Could not resolve host: ..." means that you have issues with your internet connection.
What is the output of:
/sbin/ifconfig
cat /etc/resolv.conf
ping www.google.com

Open in new window

0
jskfanAuthor Commented:
resolv.conf is empty
0
slubekCommented:
That's why your system cannot resolve host names.
Put:
nameserver 8.8.8.8

Open in new window

into resolv.conf

That will add Google nameserver.
0
jskfanAuthor Commented:
I have added this to resolv.conf, but still cannot get to internet
nameserver 8.8.8.8
0
slubekCommented:
Do you have an active internet connection?
What is the result of
ping -n 8.8.8.8

Open in new window

Does it return responses like:
$ ping -n 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_req=1 ttl=43 time=58.1 ms
64 bytes from 8.8.8.8: icmp_req=2 ttl=43 time=64.8 ms
64 bytes from 8.8.8.8: icmp_req=3 ttl=43 time=2328 ms
...

Open in new window

?
0
jskfanAuthor Commented:
it shows "Network is Unreachable"
0
slubekCommented:
So you have to configure network first. After all, you can't determine remote computer OS without being connected. :^)
Here you can find instructions.
0
jskfanAuthor Commented:
Oh yes.. I have internet connection on my PC, Linux is on Vnware workstation
0
jskfanAuthor Commented:
I tried on VM Settings:
host only, NAT, Bridge
still does not work
0
slubekCommented:
Sorry, I know nothing about VMware configuration, you'll have to ask another expert how to set it up.

Anyway, when you have connection, install nmap and nmap -O will work.
0
jskfanAuthor Commented:
I wonder  if  a moderator can jump in and adds  this Question to VMware area.
0
jskfanAuthor Commented:
I downloaded  CentOS-7.0-1406-x86_64-GnomeLive.iso
 It worked just perfect..
 Thanks

cat /etc/*release* , retrieved the OS version of local system.
I do not have remote Linux box now to test the : nmap -O
it should work though

Thank you again
0
jskfanAuthor Commented:
Thank you Guys!
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Linux

From novice to tech pro — start learning today.