Hi ,
I need to have a monitoring system also I wanna have E-Mail Notification .or SMS notification to be on touch with my System : ) ...
Regards
Adel (1 Reply)
my shell script is simple arithmetic process.my addtion,substract and divide all can be worked only except multiplication.please help me.the shell is following:
#!/usr/bin/sh
echo "enter a number1:"
read number1
echo "enter an operator:"
read operator
echo "enter a number2:"
read number2... (4 Replies)
Hi,
I am doing sftp from remote server1 to remote server2. This is done through a script.
This script was working fine. But if i am tranfer files of 120 MB only some part of the file gets transferred (around 9 MB).
Incase i put the same file manually it gets uploaded successfully.
Can... (1 Reply)
HI
I want to get an e-mail @ my yahoo address when the file system used space gets more than 89% ,
& the message contents must be the outputs of
df -g
errpt
netstat -i
??????? (3 Replies)
I have a file named email.html with this as the contents:
Content-type: text/html
ACHI,ACCRETIVE HEALTH ,7.15,<br>CPRT,Copart Inc.,36.14,<br>GEOB.MX,GEO-B,1.660,<br>GCO,Genesco Inc. Comm,73.58,<br>GMAN,Gordmans Stores, ,<br>GES,Guess? Inc. Comm,26.45,<br>KBR,KBR Inc. Common... (1 Reply)
I cannot solve the following error bellow.
Can someone help me on this please?
Mar 31 07:08:45 serverx sudo: fork
Mar 31 07:18:50 serverx sudo: fork
Mar 31 07:28:45 serverx sudo: fork
Mar 31 07:38:47 serverx sudo: fork
Mar 31 07:48:45 serverx sudo: fork
Mar 31 07:58:45 serverx... (1 Reply)
Anyone know of a way shorten a Cmnd_Alias when multiple similar commands are used? For example, I need to grant access to /usr/bin/systemctl start <service>, /usr/bin/systemctl stop <service>, /usr/bin/systemctl restart <service>, and /usr/bin/systemctl status <service>. I think there is a way to... (1 Reply)
Wondering if anyone can point me to an example of how to setup a bash script that executes cp mv and rsync commands and only sends an email if there were errors with any of those commands and what the errors are. In addition it should email if the cron event to execute the script fails, or in... (1 Reply)
Discussion started by: consultant
1 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)