Problem With Chgrp In Bash

Code:
alice@alice:~$ grep 1003 /etc/group
alice:x:1003:
alice@alice:~$ grep 1003 /etc/passwd
alice:x:1003:1003:Alice,,,:/home/alice:/bin/bash

So there's nobody in alice's group except alice (for whatever that's worth)

Code:
alice@alice:~$ ls -ld dollstuff
drwxrwxr-x 2 alice alice 4096 Jan 28 10:55 dollstuff

alice clearly owns and has full access to the directory "dollstuff" which resides in her home directory

Code:
alice@alice:~$ grep 1005 /etc/group
common:x:1005:alice,dilbert,wally

there's another group of which alice is a member, and alice wants to share her directory with the other members of the group

Code:
alice@alice:~$ chgrp common dollstuff
chgrp: changing group of ‘dollstuff’: Operation not permitted

Why not? dilbert and wally do this very same thing on their machines on a regular basis. All are running fully updated Ubuntu 14.04.

"chown ladybug:common dollstuff" is also disallowed, although "rm -r dollstuff" does work.


Similar Content



Chgrp Not Changing A File?

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.

Grep: Find Files That Do Not Have Multiple Different Strings

Hi all,

I'm trying to identify files that do not have matches for certain strings. FYI, these are files of DNA sequences and I'm trying to find those that are NOT sampled for any species by my group of interest (e.g., genes that are specific to that group of organisms).

I tried this code but it's actually yielding a list of files that DO match for my regexp.
Code:
for FILENAME in *.fas
do
grep -q -L ">PBAH" $FILENAME && grep -q -L ">SKOW" $FILENAME && grep -q -L ">CGRA" $FILENAME && echo $FILENAME
done

Basically I want to somehow go through and file files that do not contain ">PBAH" ">SKOW" or ">CGRA". Any assistance would be greatly appreciated!

Best,
Kevin

Impossible To Get Kubuntu Open On ChromeOS

Hi everyone,

I am currently a user of crouton under chromeOS. It worked "pretty" well for about two months but does not work anymore. When I open it, linux start normally but suddenly stop and give me this message:

Quote:
The following installation problem was detected
while trying to start KDE:

No write access to $HOME directory (/home/paul).

KDE is unable to start.
I already try this Code:
sudo chown -R group:user /home/user

But I can not remember group and user name.

Thanks a lot

Can't Access Samba Share

I have set up a SFTP which I can connect to, go to the right directory and read/write files to.

The full path is home/sftpuser/SFTP/Customer
The user "sftpuser" I am connecting with is in the group "ftpusers" which has read/write access.

That works fine.

Here is my sshd_config:
Code:
Match Group ftpusers ChrootDirectory /home/%u/
 ForceCommand internal-sftp
  AllowAgentForwarding no
  AllowTcpForwarding no
  X11Forwarding no

However, I made a samba share of the folder Customer, when I go to the IP adress on a Windows machine "\\10.0.0.1\" I can see the folder Customer, when entering it requests user/pass and afterwards gives an error: you have not the right permissions.

In Webmin:
Customer /home/sftpuser/SFTP/Customer Read/write to everyone

My smb.conf:
Code:
[global]
    syslog = 0
    log file = /var/log/samba/log.%m
    read raw = no
    write raw = no
    passdb backend = tdbsam
    workgroup = DOMAIN
    usershare allow guests = yes
    socket options = TCP_NODELAY
    pam password change = yes
    passwd program = /usr/bin/passwd %u
    unix password sync = yes
    obey pam restrictions = yes
    passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
    server role = standalone server
    server string = %h server (Samba, Ubuntu)
    max log size = 1000
    map to guest = bad user
    panic action = /usr/share/samba/panic-action %d
    dns proxy = no



[Customer]
    force create mode = 755
    browsable = yes
    public = yes
    path = /home/sftpuser/SFTP/Customer
    force directory mode = 755
    writeable = yes
    valid users = @ftpusers
    force group = ftpusers
    write list = @ftpusers

I have been struggling for 3 days and am totally out of ideas.

LS -L for the folder:
Code:
total 4
drwxrwx---+ 2 sftpuser ftpusers 4096 Apr  9 11:35 Customer

Setfacl Help

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.

Change ACL

I have a folder , I use the below command .
Code:
#getfacl sis_group

and then get the result
Code:
group:sis1:rwx

would advise if I would like to change group from sis1 to sis2 , the getfacl result should be as below , what can I do ? thanks
Code:
group:sis2:rwx

Apache Not Working Properly After Update To Debian 8

Hi,
I just upgraded my server from Debian 7 to Debian 8. Everything seemed to go fine. However, Apache doesn't seem to be able to see the web files. If I go to my server's IP, I get an empty directory listing, as if the document root was pointed to an empty directory. However, my apache.conf points to /var/www, and there are indeed files the
Code:
root@maples-server:~# ls -la /var/www/
total 624
drwxr-xr-x  5 www-data www-data   4096 Apr 28 19:35 .
drwxr-xr-x 13 root     root       4096 Mar 28 11:43 ..
lrwxrwxrwx  1 www-data www-data     18 Jan 10 20:47 anthony -> /home/anthony/web/
-rw-------  1 www-data www-data   1455 Apr 23 21:41 .bash_history
-rw-r--r--  1 www-data www-data   3388 Jan 21 19:34 .bashrc
drwxr-xr-x 11 www-data www-data   4096 Apr 23 21:41 chat
lrwxrwxrwx  1 www-data www-data     14 Mar 23 16:20 dad -> /home/dad/web/
drwxr-xr-x  2 root     root       4096 Mar 15 05:52 html
-rw-r--r--  1 www-data www-data    323 Mar 26 18:35 index.htm
drwx------  2 www-data www-data   4096 Jan 21 19:50 Mail
-rw-r--r--  1 anthony  anthony  592795 Apr 23 19:52 phpfreechat-1.7.tar.gz
-rw-r--r--  1 www-data www-data     41 Apr 15 21:52 robots.txt
-rw-------  1 www-data www-data   1541 Apr 23 21:41 .viminfo

Here's my apache.conf (with the comments stripped; there were no "end of line" comments):

Code:
root@maples-server:~# cat /etc/apache2/apache2.conf | grep -v "#"

Mutex file:${APACHE_LOCK_DIR} default

PidFile ${APACHE_PID_FILE}

Timeout 300

KeepAlive On

MaxKeepAliveRequests 100

KeepAliveTimeout 5


User ${APACHE_RUN_USER}
Group ${APACHE_RUN_GROUP}

HostnameLookups Off

ErrorLog ${APACHE_LOG_DIR}/error.log

LogLevel warn

IncludeOptional mods-enabled/*.load
IncludeOptional mods-enabled/*.conf

Include ports.conf


<Directory />
	Options FollowSymLinks
	AllowOverride None
	Require all denied
</Directory>

<Directory /usr/share>
	AllowOverride None
	Require all granted
</Directory>

<Directory /var/www/>
	Options Indexes FollowSymLinks
	AllowOverride None
	Require all granted
</Directory>

AccessFileName .htaccess

<FilesMatch "^\.ht">
	Require all denied
</FilesMatch>


LogFormat "v:p h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent


IncludeOptional conf-enabled/*.conf

IncludeOptional sites-enabled/*.conf

I also checked sites-enabled/000-default, and everything seems to be fine the
Code:
root@maples-server:~# cat /etc/apache2/sites-enabled/000-default 
<VirtualHost *:80>

	DocumentRoot /var/www
	<Directory />
		Options FollowSymLinks
		AllowOverride All
	</Directory>
	<Directory /var/www/>
		Options Indexes FollowSymLinks MultiViews
		AllowOverride All
		Order allow,deny
		allow from all
	</Directory>

	ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
	<Directory "/usr/lib/cgi-bin">
		AllowOverride All
		Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
		Order allow,deny
		Allow from all
	</Directory>

	ErrorLog ${APACHE_LOG_DIR}/error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

Additionally, the connections are no longer showing up in /var/log/apache2/access.log. The last access time in that file is from before the update. I don't know enough about systemd to know if it is responsible for redirecting the logs to somewhere else...

At this point, I have no idea why it's not working. If anyone could point me in the right direction, I would really appreciate it.
Thanks!

EDIT: After looking around some more, it seems that the output of "apachectl -S" is helpful. So here it is:
Code:
root@maples-server:~# apachectl -S
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1. Set the 'ServerName' directive globally to suppress this message
VirtualHost configuration:
ServerRoot: "/etc/apache2"
Main DocumentRoot: "/var/www/html"
Main ErrorLog: "/var/log/apache2/error.log"
Mutex ssl-stapling: using_defaults
Mutex proxy: using_defaults
Mutex ssl-cache: using_defaults
Mutex default: dir="/var/lock/apache2" mechanism=fcntl 
Mutex mpm-accept: using_defaults
Mutex watchdog-callback: using_defaults
PidFile: "/var/run/apache2/apache2.pid"
Define: DUMP_VHOSTS
Define: DUMP_RUN_CFG
Define: ENABLE_USR_LIB_CGI_BIN
User: name="www-data" id=33
Group: name="www-data" id=33

It appears that it's looking in a subdirectory html, which was not the case previously (before the upgrade). I've currently got a (ugly but useable) work-around using a symlink:
Code:
root@maples-server:~# cd /var/www/
root@maples-server:/var/www# rm -r html/
root@maples-server:/var/www# ln -s /var/www/
root@maples-server:/var/www# mv www html
root@maples-server:/var/www# ls -l html
lrwxrwxrwx 1 root root 9 Apr 28 22:36 html -> /var/www/

While this does work, I'd like to find the proper way of doing it. Any ideas?

How To Use Static Libraries? Please Help Lol

https://code.google.com/p/wavelet1d/...ar.gz&can=2&q=

The above link is where I downloaded *.cpp(s) and the libraries.

If you "untar" the package, in "examples" directory, there are some demonstration files. What I wanted to do was to make an executable file out of "wavedemo1.cpp".

I modified the code in "wavedemo1.cpp"; Code:
#include "wavelet2d.h"

to Code:
#include "wavelet2s.h"

, then placed the header file "wavelet2s.h" (from /wavelib/src/linuxstatic) and the modified "wavedemo1.cpp" into my working directory.

Inside the working directory, I ran the following command

Code:
gcc -L/home/mario/wavelet/wavelib/linuxstatic -lwavelet2s wavedemo1.cpp -o wavedemo1

Then I get the following error messages.

/usr/bin/ld: skipping incompatible /home/mario/wavelet/wavelib/linuxstatic/libwavelet2s.a when searching for -lwavelet2s
/usr/bin/ld: cannot find -lwavelet2s
collect2: error: ld returned 1 exit status

I'm not sure what went wrong with my approach. This is my first time trying to use libraries on linux and it's giving me really tough times.

I would appreciate your help, please let me know if you need more details to explain things.

Thanks.

What Does The "T" Mean When You List File Permissions W/ Ls -l

I have a directory w/ a file that I created using:
Code:
fd = open("file", O_CREAT);

The file turned out to be executable. When I did a 'ls -l' on the directory w'/ that file it has a "T" at the end of the permissions where the executable bit would be set for the "other" group.

Problem With (instalation Of?) Mysql.h On C

Hi, I've just recently installed MySQL connector/c from source code on my Slackware 14.1 x64

I read the official instructions of the connector but I felt a bit disorientated when I read:
Code:
1 -Change location to the top-level directory of the source distribution.

I interpreted that I have to go to the "highest" directory Code:
/

So I wrote: Code:
 
        #                            cd /

root@- /#                            tar xzvf /home/normal/Downloads/mysql-connector-c-6.1.6-src.tar.gz 

root@- /#                            cd /mysql-connector-c-6.1.6-src/

root@- /mysql-connector-c-6.1.6-src# cmake -G "Unix Makefiles"

root@- /mysql-connector-c-6.1.6-src# make 

root@- /mysql-connector-c-6.1.6-src# make install

Then I did:
Code:
ln -s /usr/local/mysql-5.6.25/include /usr/include

But when I try to compile a program in c with #include <mysql.h> i get this error:
Code:
# gcc ctemp.c 
In file included from ctemp.c:2:0:
/usr/include/mysql.h:57:27: fatal error: mysql_version.h: No such file or directory
 #include "mysql_version.h"
                           ^

What can I do? Thanks a lot and sorry for poor english

PD: If you need the official instructions I paste here the link: https://dev.mysql.com/doc/connector-...on-source.html