Hi,
I have successfully copied a file from one server to another using following command.
user1@server1# scp test.jsp user2@server2:/home/
Now i want to delete that copied file(test.jsp) from "server2" by running some command from server1.
Please help... (1 Reply)
Hi,
I have successfully copied a file from one server to another using following command.
user1@server1# scp test.jsp user2@server2:/home/
Now i want to delete that copied file(test.jsp) from "server2" by running some command from server1.
Please help... (2 Replies)
All, I need to write an unix shell script which inserts some records into a file located in remote servers.
* Get the input from the user and insert according the first row. It should be in ascending order.
123451,XA,ABA
123452,XB,ABB
123453,XC,ABC
123455,XE,ABE
123456,XF,ABF
123458,XG,ABG... (2 Replies)
Hello,
I have about 90 servers that I need to update snmp configs. I am trying to write a script that will echo 4 new lines of text into the snmpd.conf file. I have tested it locally and it works when the server ssh into itself but when I try to run the script to ssh into a remote server it logs... (5 Replies)
Hi All,
I have one file that sits on 4 diffrent servers, those servers are diffrent region based and they are authentication protected and that file has a diff port numbers, so when run the script it must ask my login details,region of server and port no for that file once it took from me... (1 Reply)
Hi All,
I have a file that sits on 4 diffrent servers, those servers are diffrent region based and they are authentication protected and that file has a diff port numbers, so when run the script it must ask my login details,region of server and port no for that file once it took from me it... (1 Reply)
Hi,
Want to append the text to a new file,
echo "set `sqlplus -S abc/xyz123@localdb<<EOS" >> chk_test_append.sh
echo "EOS`" >> chk_test_append.shbut getting the below error :
what wrong is written ?
With Regards (4 Replies)
So, is there way of automating this ?
My ultimate goal is to run some cmd script in windows and it should connect to a remote unix host and run a script x.sh located on the remote unix host.
I was wanting to achieve this by using WinSCP and Putty only. If possible let me know how and if not... (25 Replies)
Hello,
I have text files to append and am able to do with cat.
cat file1 file2 >file3
and file3 works fine in UNIX (checked with vi and it looks fine) but when i open the same file in windows I see 2nd file appended as a single-line. In other words, all the lines of 2nd file appended to... (2 Replies)
Hi,
We are using one unix script which is using sftp command and connect to remote server and get some file form remote server.
some time after running this script we are not getting any file .
Could you please tell us detailed validation that is there any problem with... (6 Replies)
Discussion started by: maheshkumar93@g
6 Replies
LEARN ABOUT LINUX
sudo_root
sudo_root(8) System Manager's Manual sudo_root(8)NAME
sudo_root - How to run administrative commands
SYNOPSIS
sudo command
sudo -i
INTRODUCTION
By default, the password for the user "root" (the system administrator) is locked. This means you cannot login as root or use su. Instead,
the installer will set up sudo to allow the user that is created during install to run all administrative commands.
This means that in the terminal you can use sudo for commands that require root privileges. All programs in the menu will use a graphical
sudo to prompt for a password. When sudo asks for a password, it needs your password, this means that a root password is not needed.
To run a command which requires root privileges in a terminal, simply prepend sudo in front of it. To get an interactive root shell, use
sudo -i.
ALLOWING OTHER USERS TO RUN SUDO
By default, only the user who installed the system is permitted to run sudo. To add more administrators, i. e. users who can run sudo, you
have to add these users to the group 'admin' by doing one of the following steps:
* In a shell, do
sudo adduser username admin
* Use the graphical "Users & Groups" program in the "System settings" menu to add the new user to the admin group.
BENEFITS OF USING SUDO
The benefits of leaving root disabled by default include the following:
* Users do not have to remember an extra password, which they are likely to forget.
* The installer is able to ask fewer questions.
* It avoids the "I can do anything" interactive login by default - you will be prompted for a password before major changes can happen,
which should make you think about the consequences of what you are doing.
* Sudo adds a log entry of the command(s) run (in /var/log/auth.log).
* Every attacker trying to brute-force their way into your box will know it has an account named root and will try that first. What they do
not know is what the usernames of your other users are.
* Allows easy transfer for admin rights, in a short term or long term period, by adding and removing users from the admin group, while not
compromising the root account.
* sudo can be set up with a much more fine-grained security policy.
* On systems with more than one administrator using sudo avoids sharing a password amongst them.
DOWNSIDES OF USING SUDO
Although for desktops the benefits of using sudo are great, there are possible issues which need to be noted:
* Redirecting the output of commands run with sudo can be confusing at first. For instance consider
sudo ls > /root/somefile
will not work since it is the shell that tries to write to that file. You can use
ls | sudo tee /root/somefile
to get the behaviour you want.
* In a lot of office environments the ONLY local user on a system is root. All other users are imported using NSS techniques such as
nss-ldap. To setup a workstation, or fix it, in the case of a network failure where nss-ldap is broken, root is required. This tends to
leave the system unusable. An extra local user, or an enabled root password is needed here.
GOING BACK TO A TRADITIONAL ROOT ACCOUNT
This is not recommended!
To enable the root account (i.e. set a password) use:
sudo passwd root
Afterwards, edit the sudo configuration with sudo visudo and comment out the line
%admin ALL=(ALL) ALL
to disable sudo access to members of the admin group.
SEE ALSO sudo(8), https://wiki.ubuntu.com/RootSudo
February 8, 2006 sudo_root(8)