Communicate to the OS(linux) using front end.


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Communicate to the OS(linux) using front end.
# 1  
Communicate to the OS(linux) using front end.

Hi guys ,

I want to develop a web page which is capable of executing the command on os and show the output on the browser.(Which involves reading and writing too.)

I m using jsp language to develop the web page. How would i use it to communicate with my linux server?

Any help regarding this would be be highly appreciated.
# 2  
Usually, that's a Bad Idea™. If you have to do it, only allow a few fixed static commands, allowing no user input.

If you have to accept user input be very restrictive about it, and check it for disallowed commands. Since any command will run with the ID of the web server, one malicious user can destroy the whole website, or even the system itself (it takes only one "Bobby Tables").

Once you've checked everything, call Runtime.getruntime().exec()
# 3  
Quote:
Originally Posted by pludi
Usually, that's a Bad Idea™. If you have to do it, only allow a few fixed static commands, allowing no user input.

If you have to accept user input be very restrictive about it, and check it for disallowed commands. Since any command will run with the ID of the web server, one malicious user can destroy the whole website, or even the system itself (it takes only one "Bobby Tables").

Once you've checked everything, call Runtime.getruntime().exec()
What if i want to execute them with different user id.
# 4  
Configure sudo so that the ID of the webserver may run certain commands as a different user without a password. Again, be careful what commands to allow, and who they may be run as.
 

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #207
Difficulty: Easy
Open Shortest Path First (OSPF) is a routing protocol for Internet Protocol (IP) networks which uses a link state routing (LSR) algorithm.
True or False?

8 More Discussions You Might Find Interesting

1. Programming

Recommendation: gede - graphical gdb front-end

gede is a graphical debugger, a front-end for good ole uncle gdb. gede doesn't need a specialized gdb version. :b: Unfortunately its a qt app, nevertheless it fits well in a gtk desktop environment.:eek: Its author Johan Henriksson is a smart and nice guy always open for bug reports and... (2 Replies)
Discussion started by: dodona
2 Replies

2. What is on Your Mind?

Idea for a New Forum Front End Using Unity and SciFi Assets

Tonight I was looking into maybe creating a new front end using something like this (see video below) where the database stays the same but the user interaction happens in a virtual scifi world, such as 3D Scifi Base Vol 1 which is a 3D Models/Environments in Sci-Fi for Unity. lo1lFIIxrD8 ... (16 Replies)
Discussion started by: Neo
16 Replies

3. Programming

Publish notification via application front end

hi All I use tomcat server to publish war file. How to send an notification to users via the application screen and it should dismiss once user clicks X mark. Any suggestions ? (0 Replies)
Discussion started by: anil529
0 Replies

4. UNIX for Dummies Questions & Answers

Stripping double quotes from front and end of a line

I have a file and some records may contain double quotes at beginning and at end of line. So how do I strip them? For Example, file is somethings like this Field1;Field2;Field3 01;'Test';'Test Field3' "01;'This is 2nd field';This is 3rd field' " Desired Output is: ... (6 Replies)
Discussion started by: vx04
6 Replies

5. UNIX for Dummies Questions & Answers

Sed $ appending to front, not to the end

I keep trying to append some astrix to the end of a line, but it keeps overwriting at the front of the line. These are the originals Fred Fardbarkle:674-843-1385:20 Parak Lane, Duluth, MN 23850:4/12/23:780900 Fred Fardbarkle:674-843-1385:20 Parak Lane, Duluth, MN 23850:4/12/23:780900 ... (5 Replies)
Discussion started by: DrSammyD
5 Replies

6. Shell Programming and Scripting

remove space in front or end of each field

Hi, I have a txt file called a.txt which contain over 10,000 records and I would like to remove space before comma or after comma....like below: The input (for example two record 00001,00002): 00001,client,card limited ,02292,N ,162:41 , 192, ... (6 Replies)
Discussion started by: happyv
6 Replies

7. Programming

Running exe's from front end

Hi, I have created a tool which analyses and debugs cobol programs on Unix environment usin the C files. I now want to create a frontend for the tool in windows. For this i need to establish some kinda communication between the front the end and the back end. I know pipes in one way of... (0 Replies)
Discussion started by: Sinbad
0 Replies

8. UNIX for Advanced & Expert Users

Front end on Unix

Hi, I would like to develop a user interface on Solaris. Can anybody throw some light on currently available software utilities/ packages..? Thanks in Advance .. JS (4 Replies)
Discussion started by: shibz
4 Replies