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1
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1answer
553 views

Allow all group members to create directories and files

There are 2 users sftp_user apache Both users belong to the updaters group as well as other groups. New directories and files are created in the /updates/ directory. drwxrwsr-x 8 sftp updaters ...
2
votes
3answers
784 views

newgrp asks for password [duplicate]

I don't understand why newgrp prompts me for password when I want to change my group. I don't even know what password it is asking for but certainly not mine (user clime). $ id uid=500(clime) ...
1
vote
2answers
141 views

Modify Default Group for new Users in Solaris 11

I would like to change the default group for new users which are added to the system. Does anybody know in which file this is stored? I'm using Solaris 11
1
vote
3answers
92 views

group file and everything related to it [closed]

I'm quite new to *nix OS. I understand the format and usage (at least what the man pages says) of the /etc/group file. One day I was trying to replace my group file with a backup copy. I changed the ...
1
vote
1answer
140 views

Several groups can have the same groupID?

0:root@SERVER:/root # grep 300 /etc/group ipsec:!:300:admgrp 0:root@SERVER:/root # ?? Several groups (ipsec/admgrp) can have the same groupID (300)?? how can this be? /AIX 6.1/
0
votes
3answers
2k views

What is the function of user group root? [duplicate]

Possible Duplicate: What does it mean to be in group 0? I wanted to avoid using SSH root login to backup my remote server. Thus I set up a non-root user account on the server and place it ...
1
vote
1answer
74 views

Securely running LAMP under a specific user

I'm setting up a sandbox type of server that will be used by a couple users as a development environment and knowledge base. The server will have a web frontend so I've installed Apache, MySQL and ...
5
votes
1answer
137 views

Can I add to my groups in the current (shell) process? [duplicate]

If I add myself to a group, it applies only to newly launched processes. Actually it's more restricted than that; it seems to apply only to new logins. I'm not sure what the exact mechanism is, but ...
1
vote
1answer
228 views

Group permissions ineffective, permission still denied

I've got a problem with UNIX permissions : I'm working under Debian Squeeze, and one of my scripts, run by www-data, needs to move a file, 23550.zip, placed in the home directory of another user, ...
11
votes
3answers
531 views

Groups differ from the local ones when logging in remotely

We store our users in LDAP, alongside some groups that have meaning across different systems (organizational roles including wheel). There are also groups local to workstations, e.g. audio or video ...
1
vote
1answer
1k views

Trouble adding existing user to existing group in ubuntu

I was trying to add a user called bill to www group useradd -G www bill It gives me error UX: useradd: ERROR: bill is already in use. Choose another. I checked if this user already in the group ...
1
vote
2answers
385 views

How to handle user permission issue?

We have created an asset management application web app using php. This app allows users to browse, upload, rename, replace assets (binary files like images and 3d models) We developed in windows ...
2
votes
1answer
163 views

Delete every users from a group

I search a clean way to delete every users from the 'sudo' group. On several distributions the user created during the installation process has sudo rights, I don't want this. I search for an ...
0
votes
2answers
112 views

Change/Create permissions for a folder

How can I create (if the folder is new) or change (if the folder was already existent) permissions for a folder? In particular, I want to create a subdirectory in /etc/bind/ where I can put the ...
4
votes
3answers
421 views

how to login as a member of specific group

i want to login as a member of non primary group to create files whose owner as a member of non primary group of current user. -rwxr-xr-x 2 gowtham gowtham 4096 Sep 5 14:48 defaultNewFile ...
1
vote
1answer
890 views

Accessing another user's files

I have a file "abc" with permissions 440 .The owner of this file is "root" and the group of this file is "groupabc" . I have a user "user1" .Is their anyway I can see the contents of files "abc" using ...
1
vote
2answers
2k views

wireshark: Couldn't run /usr/sbin/dumpcap in child process [duplicate]

Possible Duplicate: How to add write permissions for a group? When I run Wireshark, It shows the following message: Couldn't run /usr/sbin/dumpcap in child process: Permission denied Are ...
6
votes
1answer
2k views

addgroup vs groupadd

I happen to know there is a slight difference between adduser and useradd. (i.e., adduser has additional features to useradd, such as creating a home directory.) Then what is the relation between ...
4
votes
2answers
714 views

Why don't /etc/group and /etc/password match?

OK this is a basic question showing my ignorance of sysadmin matters... Looking at the UNIX system I work on, my /etc/passwd entry says my_name:x:uid:gid:comments:home directory:login shell Then ...
1
vote
1answer
5k views

Error message id: cannot find name for group ID after logging in

BACKGROUND Trevor logs into his account on ssh://foobar.university.edu as one of the developers on the box, and he gets the message: id: cannot find name for group ID 131 Trevor then checks this ...
2
votes
1answer
315 views

Adding Windows user to Linux group; possible?

I have a NAS that runs on Linux and I connect to it from my Windows desktop. I noticed that all directory in that drive belongs to user 'root' and group 'root'. That effectively denies me the right to ...
2
votes
1answer
1k views

How to ensure that anonymous FTP has been disabled on a Solaris 10 system?

What line in which configuration files in the /etc/ftpd directory do I have to check to ensure that anonymous FTP has been disabled? From my understanding now, to ensure that anonymous FTP is ...
1
vote
1answer
148 views

How to disable messages in unix if mesg and chgrp not allowed?

This is one of my questions for my exam .. We are not supposed to use mesg y/n for this but we should effectively avoid mesgs along with the problem of not being able to change groups.
5
votes
3answers
609 views

Can't read a file although it's in my group and permissions for group read are set

I encounter a strange problem on a unix/linux machine: I'm member of a group, let's call it group A and a certain file (which has a different owner) belongs to group A as well. The permissions of ...
2
votes
0answers
190 views

Samba: system group mapping

I have w2008R2 PDC and Linux server with samba and winbind. Now I'd like to add some domain users to Unix adm group in AD. Let's say I have adm group defined in AD, and every user from this group ...
1
vote
1answer
142 views

How to filter group membership from the ldap server?

Context : We have a Ubuntu 12.04 with authentication done on a ldap server. Unfortunately, one (ldap) user belongs to a (ldap) group named "admin". I know there is the option ...
2
votes
1answer
195 views

Why does newgrp change my PS1 and how to prevent it?

I have a customized PS1 to show several parameters. When I switch to a different group using newgrp, it switched my PS1 to default ($) and that is annoying. The default remains even when I switch ...
0
votes
1answer
2k views

Full access by group user of /var/www/html [duplicate]

Possible Duplicate: How to add write permissions for a group? On Centos 6 I'm trying to give full access to make and delete by the user mitch for /var/www/http. I did addgroup www and then ...
4
votes
1answer
3k views

Group within group file permissions

I tried finding this on here, but couldn't so sorry if it's a duplicate. Say I have 2 groups and a user: group1, group2, user1 with the following structure: group1 is a member of group 2, user1 is a ...
3
votes
1answer
156 views

In my secure log there is a new group added that Im unsure about after adding semanage

I installed semanage onto my CentOS 6.2 box and I was going through my secure log after the install and noticed this entry: Aug 31 22:12:17 xxxx groupadd[12929]: group added to /etc/group: ...
8
votes
1answer
2k views

In /etc/group what is the meaning of the second field?

A sample /etc/group file contains the following entries: root:*:0: adm:!:4:logcheck antoine:x:1000: The man pages I've read (Debian & OSX) says the second field is to store a group password. ...
1
vote
1answer
365 views

Group Permission on public_html [duplicate]

Possible Duplicate: Permissions: What's the right way to give Apache more user permissions? Before I knew better, I used /home/someuser/public_html/scripts as a place from which shared ...
1
vote
1answer
3k views

Why this error: “cannot create directory `foo': Permission denied”

I get this error when I try creating a directory: [rex <03:57 PM> /var/tmp/pb82]$ mkdir foo mkdir: cannot create directory `foo': Permission denied But doesn't the following output indicate ...
2
votes
3answers
807 views

Limited SSH user on Ubuntu 12

I'm running Minecraft on a server. How can I give my friend SSH access just to the minecraft folder (a root folder), the screen command, and some ports?
6
votes
3answers
2k views

What does it mean to be in group 0?

Several users in a system I inherited have their group set to 0 in /etc/passwd. What does that mean? Do they essentially get full root privileges? The system is running CentOS 5, and the users ...
2
votes
3answers
4k views

What does GID mean?

What does GID actually mean? I have Googled it and this is what linux.about.com said: Group identification number for the process. Valid group numbers are given in /etc/group, and in the GID field ...
1
vote
2answers
214 views

How to maintain file ownership when running 'yum update'

I'm running CentOS 6.2 and installed nginx as root. After the install I changed the owner and group of the install to it's own user and group to keep thing a bit more secure. I logged in as root and ...
4
votes
2answers
335 views

Group ID 501 cannot be found

A file in a directory has a Group ID "501" After checking /etc/group, Group ID "501" was not found how is that possible ?
2
votes
1answer
1k views

How do I set permissions for a directory so that files and directories created under it maintain group write permissions? [duplicate]

Possible Duplicate: Make all new files in a directory accessible to a group I have a directory in which collaborative files / directories are stored. Say directory abc is owned by root and ...
1
vote
5answers
6k views

What is the command for listing all users who are members of the admin group?

I am looking for the name of the superusers list on Fedora. (On Ubuntu is seems to be "sudo".) I want to add one of the users to the superusers list. The groups command only lists the groups of the ...
3
votes
3answers
196 views

When adding a user to a new group when does the user group permissions become active when its a /nologin user?

I have a service level account to run my webserver, and this user is setup with /sbin/nologin. Normally when you add a user to a group you must logout and login to use the new group permissions. ...
0
votes
1answer
212 views

Incompatible group permissions in Linux - Is it a bug? [duplicate]

Possible Duplicate: How to apply changes of newly added user groups without needing to reboot? I am on Ubuntu 11.04. I am creating another user and placing an existing user in the group of ...
1
vote
0answers
276 views

Adding a second user to a system group? [closed]

I am trying to get around a permission issue I am having. The only reasonable option (other than ACL) is to add the user that needs access to the system group of the user that has access. Yes, the ...
5
votes
1answer
85 views

assigning files of a group to another one

I want to delete a group using groupdel command, but before doing this I want to assign all files belonging to this group to another one is there a way to do this? I know that I can use find / -gid ...
8
votes
3answers
22k views

Change gid of a specific group

I'd like to change group id of a specific group. There are so may solution for changing the gid of a file or directories. But that's not what I want. Is there a way to do that?
49
votes
5answers
60k views

How do I remove a user from a group?

Which command should I use to remove a user from a group in Debian? When adding a user to a group, it can be done with: usermod -a -G group user However, I could not find a similar command ...
6
votes
2answers
2k views

linux permission, group member cannot write even with write permission

The logged in user is a member of a group that has a write permission on a folder. But when this user is trying to write something, "permission is denied". The log below summarizes the question: ...
5
votes
5answers
901 views

Why is it recommended to create a group and user for some applications?

Most of the time, when installing a program from source it is recommended to create a new user and a new group and give /usr/local/<myapp> the recently created user and group ownership. Why is ...
3
votes
2answers
1k views

Using umask to set group permissions

A long time ago an old friend showed me a way to use an octal or hex umask with a group I think using /etc/profile. I'm not sure. I'm trying to create group on Debian so that every member of that ...
3
votes
3answers
432 views

Escaping argument in bash script?

I'm writing a bash script wherein I want to check that one of the arguments passed to it is a valid group. I have the line if [ `grep -c -e '\b$2\b' /etc/group` -eq 0 ]; then echo "Error: $2 is ...