Hi,
I have a first shell script (/bin/sh) that receives some paremeters. This is only an example (there are more parameters in fact and this one is among them):
-header "This is a test"
This script calls a secund shell script (/bin/sh) with the same parameters. But, quotes disappear as I would... (0 Replies)
hi,
I have a script abc in a machine xyz. which i can access by sudo su - user. that is i can login to xyz using my id and then switch to user and run the script.
Now what i need to do is run the script from another script in machine xyz1. From xyz1 i can ssh to xyz using my id. Some one... (1 Reply)
Hi all,
I have set up a cron job which calls another shell script shell script which in turn calls a Java process. The cron tab looks so.
0,30 7-18 * * 1-5 /u01/home/weblogic/brp/bin/checkstatus.sh >> /u01/home/weblogic/logs/checkstatus.log
The checkstatus.sh scripts looks like this.
... (4 Replies)
Hi,
I am logging into sun solaris unix box as asood user.Then sudo su_appssu
and scheduled my cron jobs.The user appssu is there In the /etc/cron.d/cron.allow . I do not understand why the jobs are not kicking by cron. Do I need to enter directly as appssu ?
Regards
Megh (10 Replies)
I am learning how to write shell scripts and have come across an issue. I'm trying to write a script that looks for a directory called public_html, and if it finds one, to print the number of lines that contain applet tags (containing '<applet') in all files that end in either .html or .htm that... (7 Replies)
I use csh a lot but I don't really write csh scripts. Now I have a need to implement a security check (written in perl; verify an user input security code) into a csh script. Here is the senario:
#csh
1. call the perl script
2. if the perl script returns 'true', pass on;
if the perl... (1 Reply)
hello; Got a problem running monitoring scripts using sudo ssh.. Mgmt decided to take away root sudoers access.. so most of the scripts ran as:
sudo ssh $BOX ...
Now I need to run them as:
echo $my_pw | sudo -S -l my_user_id $BOX ...
I tried this but not working..
Any wisdom/tricks... (3 Replies)
I have to write a shell script in my current linux server and I have to connect to a different server then do sudo login and finally run some scripts residing in a particular directory and get results back. I am starting to write my shell script as below but after I do ssh login it prompts for... (2 Replies)
I am trying to run a command. This is one of my attempts:
for i in fileservera; do ssh -t $i 'sudo ls /';doneThis works, and I see the directories. However, what I want to do now is start a process on the remote server such as /usr/bin/connectproc -standalonesudo /usr/bin/connectproc... (1 Reply)
I have 2 scripts. test.sh, which calls submit2.sh. One of the parameters contains space and is quoted.
((((./submit2.sh Group_1_2_AMS_DAILY_CORE_GRP03 AMS AMS_D 'DAILY REPORT PROCEDURES'; echo $?>&3) | tee 1.log >&4)3>&1) | (read xs; exit $xs)) 4>&1
echo parm 1 = $1
echo parm 2 = $2... (1 Reply)
Discussion started by: andyclam
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)