Assign Group Permission To Newly Created Files

I have been using an old computer to download my torrents and this has been my usual routine:

1. Press the power button.
2. Connect to the computer through Putty
3. Log in
4. Gain su privileges

Startup Commands:
Code:

/etc/init.d/transmission-daemon stop
apt-get update
mount -t ext4 /dev/vgTransmission/lvTransmission /mnt/transmissionVault
/etc/init.d/transmission-daemon start

Shutdown Commands:
Code:

/etc/init.d/transmission-daemon stop
umount /dev/vgTransmission/lvTransmission
shutdown -h now

I was wondering if there is a way to configure a computer to automatically mount a logical volume “before” the transmission-daemon starts at boot up (note my first Startup Command).

I think the instructions here are related to what I want to do, but I want to get some advice before I attempt to do anything dangerous:
http://tille.garrels.be/training/tld...#sect_04_02_04


My perfect scenario would be:

Startup Routine:
1. Send WakeOnLan magic packet to computer to turn it on.
2. Computer boots up, mounts the transmissionVault logical volume
3. Wait 10 seconds to ensure that the logical volume has finished mounting
4. Start transmission-daemon

Shutdown Routine:
Send WakeOnLan magic packet to turn off computer, i.e.: Execute “shutdown -h now”
The shutdown command should include:
1. Stop transmission-daemon
2. Wait 10 seconds to ensure that transmission-daemon has finished shutting down
3. Umount transmissionVault logical volume




Recently the Ethernet port of my transmission box has stopped working, so I went ahead and swapped the motherboard with another old motherboard, added a few hard drives, installed a fresh copy of Debian, and re-created the LVM logical volume for transmissionVault. I pretty much have a fairly stock system running at the moment.

Running a headless 3.2.0-4-amd64

hello all,

I have questions

How to specify Transmission Time and Transmission Rate in ns2 ????

I have a directory structure and files I wish to change permissions on, but I don't want to change permissions on every file/subfolder along the way. Example: I want to chown all files in dir4 where my directory struture is:
/dir1/dir2/dir3/dir4/*
However, both dir3 and dir4 are owned by root:root so I need to change the ownership on those directories as well. But, if I do:
chown -R user:group /dir1/dir2/dir3/dir4/
...it will indeed make dir4 and it's files accessible, but it doesn't change dir3 - so folks still can't get to the files they need. I thought about doing:
chown -R user:group /dir1/dir2/dir3*
... but that will give users access not only to dir4 and it's files, but any other files under dir3 which I don't want.

My work around has been to do a chown on /dir1/dir2/dir3 and then a second chown on /dir1/dir2/dir3/dir4/, but I am thinking there has to be a way to do what I want in a single chown command - right?

I tried adding two users in apache group and given 775 permission to Document root but user is not able to write into files in DocumentRoot

Tried adding user and DocumentRoot Folder in sudo file but not able to do it recursively

please help


Thanks for reply,
I have already given chmod 775 -R DocumentRoot - for recursively writting permission
You have told to add user in www-data group and chmod 775 -R to DocumentRoot
usermod -a -G www-data <user1>

How can users in www-data can able to write in DocumentRoot which has apache:apache owner and group
please clarify...

Done below steps to solve this:
1) I have created a new group webdata and added required users in this group
2) set sticky bit to document root with below command
setfacl -m g:webdata:rwx -R /path/to/documentroot/
this command will set rwx permission to DocumentRoot so that members in webdata can have full access but still DocumentRoot user and group will be apache

Hello,

OS: CentOS 6.3

Background:
I'm trying to set up a situation where my FTP account is in a group where my phpbb forums were created. This will allow me to upload changes as I customize my forums (ie: .css files). However, right now, my problem is that I'm running into invalid permissions and the only way to move the files is to upload the file to a directory my FTP account has access too and then sudo cp the file over. Upon closer inspection of my files, it appears the groups the files have been made under are not the correct group.

Problem:
I am trying to use chgrp on a specific file to change the group owner to the group my FTP account is a member of but it does not seem to be working. Here is a snippet of what I'm doing:

Code:

zzz@aaaa:/var/www/html/yyy/forums/styles/GlossyBlack/theme]$ sudo chgrp apache colours.css -v
group of `colours.css' retained as apache
zzz@aaaa:/var/www/html/yyy/forums/styles/GlossyBlack/theme]$ ls
total 164
drwxr-xr-x 3 5645316 apache  4096 Mar 27 15:11 .
drwxr-xr-x 6 5645316 apache  4096 Nov 18  2012 ..
-rw-r--r-- 1  root     apache 23480 Mar 27 19:05 colours.css

I'm not sure why it still says root so I suspect I am doing something incorrect. When looking around, at first it seemed chgrp could change group owner on files but as I dug more, it seemed it can also change groups themselves. So I'm a little confused and require some clarity of experts.

I hope changing the group owner of this file will give access to my FTP account so I can apply this change to all needed locations.

Thanks.

I can't believe I wrote a looong message and it logged me out when I tried to submit it.

So anyway, in short lines:

- I have a network of sites where all sites share same "images" folder
- I have created /home/_images/entities and symlinked it from all websites
- It works great with Apache, when I open /images/ on any of the sites I get list of images and can view them

The problem is suPHP which changes process ID of the PHP script to the file owner ID, so when I load site1.com, all scripts are executed as user1 (and files/folders created with those scripts belong to user1:user1). When I load site2.com, all scripts are executed as user2 (and files/folders created with those scripts belong to user2:user2). All these users do NOT belong to the same group, and I wouldn't like to change that as it is cPanel/WHM server so I'm afraid I'll screw something up if I change (primary?) group of all users.

Therefore I need to set it up in such way that all newly created folders and files under /home/_images/entities (owned by root) have read/write permissions for everyone.

Here's the command I used:

Code:

setfacl -Rdm o::rwx /home/_images/entities

To check it:
Code:

root@server1 [~]# getfacl /home/_images/entities/
getfacl: Removing leading '/' from absolute path names
# file: home/_images/entities/
# owner: root
# group: root
user::rwx
group::rwx
other::rwx
default:user::rwx
default:group::rwx
default:other::rwx

This looks fine, however when I try upload an image via site1.com it looks like this:

Code:

root@server1 [/home/_images/entities]# ls -l
total 24
drwxrwxrwx+ 5 root    root    4096 Jan 14 06:25 ./
drwxrwxrwx  5 root    root    4096 Jan 12 13:08 ../
drwxrwxr-x+ 3 user1   user1   4096 Jan 14 06:25 1/

And in folder "1" is the image (and thumbs folder):

Code:

root@server1 [/home/_images/entities/1]# ls -l
total 236
drwxrwxr-x+ 3 user1   user1     4096 Jan 14 06:25 ./
drwxrwxrwx+ 5 root    root      4096 Jan 14 06:25 ../
-rw-rw-rw-  1 user1   user1   225569 Jan 14 06:25 689048f221ab7c556f4d482a9d92b2d6.jpg
drwxrwxr-x+ 2 user1   user1   4096 Jan 14 06:25 thumbs/

My questions:

1) Why newly created folders do not have "write" permissions for everyone else [not user and/or group]? If I upload first image from site1.com, then I can't upload other images from any other site, while all sites can display them.

2) What is the + at the end of permissions list? (drwxrwxr-x+)

3) Why newly created files have only "rw" permissions for user, group AND everyone else, and not execute permissions? I don't actually need execute flag set here, but from my command you can see I've set "o::rwx" so it should be there (or not?)

Actually the real problem is #1 - other users can't write to this folder so users can't upload images from other sites nor other sites can create (missing) thumbnails.

I have a dedicated PC providing storage of my music collection and streaming albums via Logitechmediaserver (LMS). OS is Arch running headless. For performance purposes I'd like LMS to access its SQLite database files from a RAM disk which must be dynamically created on startup of the PC with DB copied across from HDD prior to startup of LMS. On shutting down the PC the only changed files should be copied from the ramdisk back to the HDD. The intent would be to use rsync for the copying.

/etc/fstab is configured to create the ramdisk on startup:
Code:

tmpfs      /mnt/ramdisk tmpfs     defaults,size=4096M 0    0

and LMS has already been configured to look for its DB files in /mnt/ramdisk.

LMS' unit file is /usr/lib/systemd/system/logitechmediaserver.service. Its contents is as follows:
Code:

[Unit]
Description=Logitech Media Server Daemon
After=network.target

[Service]
User=logitechms
Group=logitechms
PIDFile=/var/run/lms.pid
WorkingDirectory=/opt/logitechmediaserver
ExecStart=/opt/logitechmediaserver/slimserver.pl \
	--prefsdir /opt/logitechmediaserver/prefs \
	--cachedir /opt/logitechmediaserver/cache \
	--logdir /opt/logitechmediaserver/Logs

[Install]
WantedBy=multi-user.target

On the startup leg, the data needs to be copied prior to launch of LMS, on the shutdown leg, LMS needs to be stopped and trigger the rsync diff copy. How would I best go about calling a script on startup and shutdown of the PC to ensure that the contents is synced to and from ramdisk on startup and shutdown?

Ok, here is what I've done so far, perhaps someone can critique it for me:

I created a file /etc/systemd/service/sync-lms-to-ramdisk.service containing the following:

Code:

[Unit]
Description=Copy LMS data data directory to ramdisk
After=network.target
Before=logitechmediaserver.service

[Service]
ExecStart=/usr/bin/sync-lms-to-ramdisk.sh

[Install]
WantedBy=multi-user.target

I then created /usr/bin/sync-lms-to-ramdisk.sh containing the following:
Code:

#! /bin/sh 
# /usr/bin/sync-lms-to-ramdisk.sh
#

rsync -av /mnt/md127/zSqueezeCache/ /mnt/ramdisk/
exit 0

I made it executable as follows:
Code:

chmod 755 /usr/bin/sync-lms-to-ramdisk.sh

I then enabled the Unit as follows:
Code:

systemctl enable sync-lms-to-ramdisk.service

If I'm not mistaken that should ensure that the ramdisk is populated before LMS fires up

Well, rebooted the server and the ramdisk is populated, but all is not well - LMS is inaccessible.

# systemctl status logitechmediaserver yields:

Code:

# systemctl status logitechmediaserver
● logitechmediaserver.service - Logitech Media Server Daemon
   Loaded: loaded (/usr/lib/systemd/system/logitechmediaserver.service; enabled)
   Active: inactive (dead) since Sun 2015-03-08 17:25:46 SAST; 18min ago
  Process: 411 ExecStart=/opt/logitechmediaserver/slimserver.pl --prefsdir /opt/logitechmediaserver/prefs --cachedir /opt/logitechmediaserver/cache --logdir /opt/logitechmediaserver/Logs (code=exited, status=0/SUCCESS)
 Main PID: 411 (code=exited, status=0/SUCCESS)

cat /usr/lib/systemd/system/logitechmediaserver.service yields:
Code:

[Unit]
Description=Logitech Media Server Daemon
After=network.target

[Service]
User=logitechms
Group=logitechms
PIDFile=/var/run/lms.pid
WorkingDirectory=/opt/logitechmediaserver
ExecStart=/opt/logitechmediaserver/slimserver.pl \
	--prefsdir /opt/logitechmediaserver/prefs \
	--cachedir /opt/logitechmediaserver/cache \
	--logdir /opt/logitechmediaserver/Logs

[Install]
WantedBy=multi-user.target

Quick question - is /etc/fstab processed before all of the abovementioned?

Ok, I've got the problem narrowed down to folder permissions. for some reason on creation of the ramdisk its owner is samba whereas it should be owned by logitechems. I amended /usr/bin/sync-lms-to-ramdisk.sh to change ownership of /mnt/ramdisk to logitechms:
Code:

 
#! /bin/sh 
# /usr/bin/sync-lms-to-ramdisk.sh
#

chown logitechms:logitechms /mnt/ramdisk/
rsync -av /mnt/md127/zSqueezeCache/ /mnt/ramdisk/
exit 0

However, on reboot ownership is again assigned to samba

Any ideas?

Hello Everyone! I'm somewhat new to linux, and getting my feet wet by building my first linux server.

So what i have is an application that moves/sorts files. Another program that catalogs them.

The problem is that each app uses it's own user. So my question is if there is any way that files owned by prog1user can be read by prog2user?

I have tried doing a chmod -R 755 Directory and that has allowed the second program to see the files, but I'm guessing this has certain security risks (although I'm not so worried about the files in this directory).

Anyways I was wondering if there was a proper way to do this? OS is debian wheezy.

Cheers!

This should be an easy fix and I'm at a loss. I have a directory with 777 permissions on it and currently any directories created inside it default to

drwx--S---

I need to remove the sticky bit and also set any new directory to be readable by group X. How can I do this?

am trying to use tar in combination with find, the goal is to all files in /export that have been modified in the last 24 hours (back up purposes), then tar them so I can untar on the backup server, updating just the modified files.

Perhaps there is a better way, however, I have tried using cpio but the problem come in when I copy to the NAS drive (NTFS) I lose all my owner/group and permissions. I have found that if I tar the files, then copy them to the NAS, when I untar on the server, it will retain the owner/group and permissions.

So… here is what I have tried:

First, I use the find command to see what files should be in the tar archive.
Code:

/export $ find . -depth -mtime 0 -print
./file4
./file3
.

Ok, that looks right, now I will try to pipe that in to tar
Code:

/export $ find . -depth -mtime 0 -print0 | tar -czvf backup.tar.gz --null -T - 
./file4
./file3
./
./share/
./share/pdf/
./share/pdf/penny-2014-09-03-11:41.30.pdf
./share/pdf/penny-2014-09-03-14:25.17.pdf
./share/pdf/penny-2014-09-03-11:24.36.pdf
./share/pdf/penny-2014-09-03-14:37.12.pdf
tar: ./share/pdf/.directory: Cannot open: Permission denied
./share/pdf/penny-2014-09-02-14:52.06.pdf
./share/pdf/penny-2014-09-03-12:18.43.pdf
tar: ./share/PDF: Cannot open: Permission denied
./share/file3
tar: ./share/.directory: Cannot open: Permission denied
./dir1/
./dir1/file1
./file4
./file2
./file3
tar: ./.directory: Cannot open: Permission denied
./list
tar: Exiting with failure status due to previous errors

It seems that it is trying to tar all the files in that directory. When I view the files in backup.tar.gz all of the files from /export are in there not just the modified ones