Ubuntu Servers :: Www-data Run Process As Different User?
Jun 23, 2010
forums so I'm not sure this is the right place for this topic.So, my question/topic thing is:I have a PHP script that runs on an apache2 web server (www-data).From this script, i want to launch a process that stays alive all the time,ut the parent script keeps on going. So I think I will need to run a command like 'at' to put the process on a queue, and the script can continue and finish, without waiting for the process to stop. But it seems like I will need to run the 'at' command as a different user, because www-data stops the 'atd' process. I'm not sure about that. Does anybody know how this could happen?
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Sep 1, 2011
set up BASH scripts on the server to automatically download and process data, and then upload it to my website. Is it even possible? Do servers allow website owners to place BASH scripts that can run automatically, or keep running indefinitely?
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Dec 14, 2010
I have installed mysql-server, but i have no access. I have set the password during installation process.
Used command:
mysql -u root -p
error message:
[code]....
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Jun 6, 2010
I currently have Zarafa and I am going to install MythWeb for MythTV.To solve the permission problem for installing amportal (FreePBX), I have to change Apache's user and group to Asterisk instead of this, which I've commented out:User ${APACHE_RUN_USER}Group ${APACHE_RUN_GROUP}Once FreePBX is installed completely, I checked to make sure FreePBX is working and it worked. I used the latest version of Asterisk from the SVN trunk, so I used ./install_amp --my-svn-is-correct.However, I want to use Zarafa AND FreePBX, I just don't like having to change the Apache User and Group to asterisk.Here is a couple of examples of instructions when installing FreePBX:Is there a workaround? I really want to change it back to what it was before while FreePBX can still access their own directories.
I did not know if this question has been asked, but I thought I'd ask here. I've added "zarafa" and "mythweb" to the tags list my thread.Update: I changed my apache configuration file back to www-data for User and Group and I do have /var/lib/asterisk/agi-bin and /var/www/asterisk (where FreePBX PHP pages are installed in /var/www/asterisk) owned by asterisk:asterisk. But I get this:
Code:
Retrieve conf failed to copy file(s) from a module's agi-bin dir: copy(/var/lib/asterisk/agi-bin/directory): failed to open stream: Permission denied
[co0de]...
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Jul 8, 2010
I've a big issue using unoconv to convert Office docs in PDF format from a PHP script.It works perfectly when I run the script or the unoconv commands as root, but it fails the second I do the same from web (through apache and www-data user) I have installed Ubuntu 10.04 Server 64bits, openoffice.org and unoconv packages have been installed via apt-get (re-installed today). I think openoffice is version 3.2. Here is a command line that is called by exec() PHP command :
Code:
/usr/bin/unoconv -f pdf /home/www/framework/files/volume_0/document/original/1278613446MWEwwT4k.ppt
[code]...
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Mar 16, 2010
After kernel upgrade to latest version I get a lot of failure messages in syslog and dmesg:
Code:
Mar 16 22:50:30 s6 kernel: [515925.148335] megasas: Failed to copy out to user sense data
Mar 16 23:07:57 s6 kernel: [516970.118242] megasas: Failed to copy out to user sense data
[code]....
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May 30, 2011
Take a physical user FRED. FRED is a linux user ( known by linux on his laptop ) FRED is a Samba user ( Known by samba on the samba pdc server ) When he logs locally (with username/password) on its standalone laptop (with no network), he is known as FRED:user. He access his data in /home/FRED/. When he logs through samba (with username/password) on the domain MY_DOM, he is known as MY_DOMFRED:MY_DOMdomain user. He access his data in /home/MY_DOM/FRED/. ) Is it possible that the human FRED has only one repository and have full access to its repository regardless of how it was connected. If yes, how to do it
2) If not, Is it possible that the human FRED has full access to /home/FRED/.............. and /home/MY_DOM/FRED/.
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Feb 19, 2011
We purchased a new database system at work last October, ditching the old system because of a lack of support from the vendor. This is a retail Point of Sale and Backoffice database system. I am not sure what system the new one runs on, but the system we replaced was a Firebird data base. The reason I am posting is because we are now in need of the information contained in the old database which was not completely imported into the new system.
Basically the problem is this: The database in on a Windows XP system and I found a copy of SQL Manager Lite 2008 on the system, which after quite a bit of studying, I figured out how to extract the database into a removable file. I have this file (178MB) on a USB stick in a file called Backoffice.fbd.
My studying suggests to me that I can get into this database with MySQL. I have never used this and have no clue how to do this. All I want to be able to do get into the database and create tab deliminated spreadsheet files for each of the database sections (Customers, Repairs, Sales History, stock files, etc.) Is it possible to do this with Ubuntu and MySQL and if so, can expert suggest one or two things to get me started. While a guided tutorial would be nice because I am not an expert, I am willing to learn on my own if someone could point me in the right direction.
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Oct 6, 2010
Where apart from ~/.kde4/share/apps/kmail does kmail keep account data, such as login data/names of pop/smtp servers? I wanted to install an entirely clean version of kmail, so I uninstalled/re-installed kmail via YAST. I manually deleted ~/.kde4/share/apps/kmail. After installing kmail I found that the account data of my Yahoo account were still listed in the kmail configuration panel. Shall I delete the Yahoo account within kmail prior to uninstalling the kmail package?
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May 18, 2011
Sometimes I notice that there is high upload speeds for 10 minutes or so. At the time of the screenshot I was sitting in a public wireless place, only chromium was open and I don't see any reason why there should be sustained upload speeds.Is there a GUI or CLI so I can find out which process uses the internet?
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Jul 10, 2011
There is text based game in the Ubuntu repos called gomoku (just 5 in a row) it comes with the package bsdgames. The manual page [URL] lists an option (-b) to run it in the background. I want to try that and if I know how it works create a simple graphical front-end. When I start the program with:
Code:
gomoku -b
it starts and remains active, the terminal does not return to prompt which is OK as the command is not finished. The manual says the program reads from stdin, and this might sound stupid but how to get anything there?
I've tried to pipe an echo command to gomoku which works but ends the program after is receives input.
Code:
echo "black" | gomoku -b
just finishes. After that when you type another command like:
Code:
echo "justsometext" | gomoku -b
gomoku tells it expects either black or white as input. So it forgot the previous "black" because it is a new instance.
How do I pass text to an already running gomoku?
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Nov 22, 2010
I would like to send struct data from process A to process B but I dont known what is the best way. I have read about IPC, but there are a lot of ways to do it.
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Feb 16, 2011
I am trying to automate some directory naming when we're manually running some scripts and are using tee to direct the output to a file (log). Right now this is what we do
Code:
./some_script.sh 2>&1 | tee /home/user/some_dir/logs/manual/some_script_20110216_1628.log
As a matter of laziness and keeping the log files consistently named, I'd like to create a function to pipe it to so that it's doing all the naming How I envision the command running
Code:
./some_script.sh 2>&1 | myfunc
And what the logfile name should look like (and in the right directory)
Code:
some_script_20110216-1628.log
I was thinking of adding a function to our profile to handle this. Just in testing I was trying to stream line right on the command line, but I'm having some difficulty in getting the name of the script that is pushing data over the pipe. Here is what I've tried
Code:
./some_script.sh 2>&1 | tee $(cd ../logs/manual; pwd)/$0_$(date +%Y%m%d)-$(date +%H%M).log
but that created a file named
"bash_20110216-1628.log"
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Jan 22, 2010
resuming the any running process like yes a,vim a,copying data etc) via any terminalkill fg,bg at some instances kill -STOP pid,kill -CONT pid .
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Oct 28, 2009
Is It possible to change a process running in root-user to non-root-user by setting suid / uid / euid / gid etc... I so please instruct how, when and wat to set in order to change a process running in root-user to non-root user
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Apr 2, 2010
I have this JSON encoded data, which I want to efficiently parse (i.e. fast, with minimal system resources). I don't want to use a/the shell any more than necessary.
Here's a snippet of what the raw serial data looks like:
Code:
[{"num":1,"name":"1","visible":false,"focused":false,"rect":{"x":0,"y":0,"width":1680,"height":1050},...blah blah..
So that's fine. I currently have at least two ways of parsing it:
This Perl method (which I don't much care for because I'm not much into Perl, and because the output is not much more useful than the raw form, and imho even more cryptic):
Code:
sasha@reactor: <produce data> | perl -MData::Dumper -MJSON::XS -E 'say Dumper(decode_json <>)'
$VAR1 = [
{
code....
# Which means: at x=1680, draw a 20x20px grey block, then back up -10px and draw a "1" on the block.I figure that the two awk's I've used can be combined into one -- but I began having problems with removing the single quotes if I did it within the awk, which is why I stuck a `tr` in the middle.
I know this sucks. So, if someone has some ideas or thoughts on something else to do with this JSON data, that's less convoluted that where I'm currently going, I'll be happy to hear about it.
PS - I know this whole post is possibly hard to understand -- if you need more info (you mean you're interested in this mess?? )
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Oct 29, 2010
Im trying to limit the diskspace users on the system may consume, and i found quotas (im a total linux noob). But when i try to set it, no matter what i set it to the maximus is 2 GB. Now... i need quite a lot more than that. One user should be able to use 1900 GB and the other 600 GB. How can i fix this? Im using ubuntu server 10.04.
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Mar 15, 2010
I can't seem to find how to export a variable to all processes I run under my user? I have an application that needs this variable, and currently I have to manually export this variable (typing "export VAR=... in terminal) every time before I run the application.
Which profile file I have to put the export expression into? I want all processes to inherit this variable, not just the shell/terminal. I.e. a true environment variable...
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Feb 27, 2011
i am using Ubuntu 10.04.1 LTS. i only ever contact my ubuntu machine through SSH. everytime i login, i do:
~/downloads/.dropbox-dist/dropboxd &
this launches the dropbox process and all is great. except when i log back into the ubuntu machine via ssh after a few hours, the process no longer exists. how can i get the process to run indefinitely?
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Jun 9, 2011
Does anybody know a way to log traffic on a single interface/IP by process? Specifically what I want to record is traffic usage by user, but I can match PIDs against user to product stats and the user would also be in the full command line of the process.
There is a nice tool called nethogs that I often use to monitor traffic this way in realtime, but I would like to log the accumulated traffic rather than just monitor it.
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Jan 12, 2010
I list the process with
Code:
ps -ef | grep java
and I got:
Code:
user1 24041 ....
Here the user1 should the process name.
My question: Is this name the same as the user name?
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May 29, 2010
How can I obtain the user that owns the process from /proc/process_id? Is it the Uid in /proc/process_id/status ? If so why are there 4 values there?
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Feb 24, 2010
I've three user in my machine ,and i want to make sure that the process created by the user1 can be killed by other user and vice-versa ,is there any way i can do that without using root password or sudo
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Sep 13, 2010
$ uptime
09:55:00 up 7 days, 6 min, 2 users, load average: 0.00, 0.00, 0.00
..but I'm the only user logged in!
$ who -a
system boot 2010-09-06 09:48
run-level 2 2010-09-06 09:48 last=
[code]....
looks as though this is the culprit, but...
$ kill 5485
-bash: kill: (5485) - No such process
This process doesn't exist in the /proc folder or the output of ps. Does anyone know how this happened, and how to remove this ghost user from my system without a complete reboot? I think I have seen a similar thing on a RedHat machine ages ago but I have never figured out how to log out these ghost users.
$ uname -a
Linux ubuntu 2.6.24-28-server #1 SMP Wed Aug 25 16:07:16 UTC 2010 i686 GNU/Linux
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Apr 23, 2010
I was wondering if there is a program or just a simple copy and paste from somewhere that will allow me to move my favorites and other data from my opera on xp.
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Jul 8, 2010
How can I transfer data from one user account to the other? I wish to delete one of the accounts but before that I want to transfer all the data in that account to the other account so that my data is saved.
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Nov 2, 2010
I would like to give a non-root user (nicollet) the ability to detect and send a signal to processes started by Apache2 (those processes are FastCGI scripts and the signal tells them to empty their cache). The processes are owned by the web user (www-data), and I'm running on Debian unstable.
I can't find any way to have the nicollet user see those processes.
The processes are running and can see by both root and www-data:
root@linux-01:~# ps -Af | grep baryton
www-data 17649 17648 0 10:27 ? 00:00:00 baryton
www-data 28145 1 0 Nov01 ? 00:00:12 baryton --bot
root 18701 18700 0 10:46 pts/0 00:00:00 grep baryton
root@linux-01:~#
[Code]....
The most surprising is that the grep process is indeed run by www-data (because it's started from a setuid executable) and is visible, but the baryton process isn't.
What's going on here? Why can ps run by www-data show those processes, but ps run by a setuid executable running as www-data cannot, when it's started by nicollet?
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Sep 30, 2010
I want to write the sequence of operation of a user interactive process (Question asked by the process and answers user entered) in to a log file.
I used tee command, Precess1 | tee -a FileName
This write only the Question asked by the process. Does anybody know how to write the user inputs also to the same file, synchronized?
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Nov 23, 2009
I am trying to set the umask for a process(orkaudio) which is running as the root user.This program creates dir and files and I need the umask to be 022. I have edited my /etc/bashrc -- and when i type in umask i get 0022 --- Not sure how to go about getting this resolved...
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Dec 22, 2010
I have ubuntu server 10.10 with apache2.I want to know who run the process on my server . for example:I have 4 users Bob, Spongbob, Bubblebob, www they have their webspace in public_html folder in their home folder. And if they run some long php script I want know who from them run it.So I just know that apache2 is running under deafult secure account www-data but who ask to run apache2 ?
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