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0
votes
1answer
57 views

Can't edit files /etc/passwd and /etc/shadow

I have some issues with files /etc/passwd and /etc/shadow. Both of them are without permissions: ---------- 1 root root 1357 Aug 5 11:30 passwd ---------- 1 root shadow 1175 Aug 5 11:30 shadow ...
0
votes
0answers
19 views

Shadow remote desktop session - Show scroll bar

We have converted our users to "Remote Desktop" of Microsoft few week ago. To help users when there have trouble we shadow their remote session by running command line : mstsc /v:tsserver /shadow:ID ...
2
votes
0answers
23 views

How do I restore 1/2 of all files in a VSS image? aka Previous Version in bulk?

Suppose I have many files that were virus infected in bulk. It isn't the entire drive, but 1/2 of it. I don't want to right click each folder and restore a previous version. Is there a way to do ...
17
votes
3answers
2k views

useradd not encrypting passwords in /etc/shadow

I stumbled accross this problem when trying to create new FTP users for vsftpd. Upon creating a new user with the following command and attempting login with FileZilla, I would get an "incorrect ...
-2
votes
1answer
157 views

Understanding linux /etc/shadow file structure (Linux) [closed]

Consider the following line taken from /etc/shadow file: root:$1$NFEf74q.$bmukkxAq9dOMJINgEtP7u0:15258:0::::: From this I understand that the hashing algorithm is md5 ($1) and starting from third $ ...
0
votes
0answers
53 views

MS Azure WindowsServer2012R2-DatacenterEdition RemoteDesktop Shadow Session setup?

I use WindowsServer2012R2-DatacenterEdition as Microsoft Azure virtual machine instance and connect via RemoteDesktop. I'd like to use shadow session feature. Here's what I've done so far. 1 ...
1
vote
2answers
679 views

Migrate user and passwords to new linux box

I am trying to migrate old Centos 4.3 box to Centos 7. I have followed the migration steps from an article published way long back on ...
1
vote
0answers
2k views

passwd: Authentication token manipulation error

I am running a Ubuntu 12 machine, and have recently been working to secure it. I made all the changes from this guide. I am not running a Linode, but I used these as a starting point for setting up ...
1
vote
1answer
93 views

updating shadow file in a KVM guest in a mounted system

I have a KVM guest that I need to reset the password. If I use 'virsh console' to access the guest account, I'm able to update the shadow file with a new hash line like ...
-1
votes
1answer
139 views

can't reset password from centos

I lost the root password. So I modified /etc/shadow and also changed '/etc/inittab' file to access single user mode. But both didn't work. It asked me for a password that I don't have. Why updating ...
-1
votes
2answers
70 views

manually editing shadow file on disk from raid1 array

At work we have a machine to which root password has been lost. I have pulled out the disk and mounted it to another computer. Now I think the next step should be editing root password in the shadow ...
1
vote
1answer
594 views

NIS: which mechanism hides shadow.byname for unpriviledged users?

On some Linux box (SLES 11.1) which is a NIS client I can do as root: ypcat shadow.byname and get output, i.e. some lines with the encrypted passwords, amongst other information. On the same Linux ...
5
votes
2answers
2k views

How are the hashes in /etc/shadow generated?

I was reading the Wikipedia article on the shadow file and it mentioned the format of the lines is like this: $id$salt$hashed So, my question is, how does it work? I tried to calcualte the hash ...
5
votes
4answers
3k views

Is there a way to prevent password expiration when user has no password?

Okay, we all care about security so users should change their passwords on a regular basis (who said passwords are like underwear?). On redhat and centos (5.x and 6.x), it's possible to make every ...
12
votes
1answer
235 views

What does shadow /V actually do?

According to shadow: C:\Users\mark.henderson>shadow /? Monitor another Remote Desktop Services session. SHADOW {sessionname | sessionid} [/SERVER:servername] [/V] sessionname ...
2
votes
1answer
4k views

How to give shadow rights to a user who is not a administrator?

We have a public facing Remote Desktop Server that is used to demo our software to clients. We are upgrading to new hardware and new network layout. On our old server I set it so a special group ...
0
votes
2answers
1k views

Change password hashing algorithm for SuSE users from blowfish to MD5

I have a network of roughly 1000 SuSE machines with 20-200 users on each. The password hashing algorithm used is the default i.e. blowfish. In order to check, whether a user has used a dictionary word ...
2
votes
2answers
1k views

FreeNX shadow session

I have FreeNX server (Ubuntu 10.04) installed and users can log in just fine. The problem arises when users would like to shadow a session. It plain and simple does not work, although the user who's ...
9
votes
1answer
11k views

How to generate a /etc/shadow compatible password for Ubuntu 10.04?

How are passwords generated that are used by Ubuntu 10.04? I know that they use SHA 512 as hashing algorithm, but I figure that there is some sort of salting done. I need to generate such a password ...
2
votes
0answers
588 views

Could not connect to FreeNX server using Desktop--->Shadow

I have installed FreeNX server on ubuntu 10.04 Desktop and I could connect to the system remotely with NXClient selecting "UNIX" and "GNOME". I want to use the 'shadow' feature of NX and I could not ...
4
votes
4answers
4k views

Linux equivalent for Windows shadow copies

In Linux is there an equivalent for Windows shadow copies? I would like to use this for a small setup nothing big but it would be nice to have some type of functionality like shadow copies.
0
votes
3answers
201 views

RHEL not accepting any passwords

I have RHEL 5 on virtual machine installed. I was creating the new user by making entry in /etc/passwd. I deleted the /etc/shadow file and used pwconv command to make new shadow file. Now when i ...
1
vote
2answers
1k views

MySQL: Permit user to change his/her _own_ password

On a webserver there is a MySQL-service running, providing databases for the users of the server. Each user has it's own DB and it's own password and the right so INSERT/SELECT/UPDATE/DROP tables in ...
0
votes
2answers
2k views

Restore passwd for root on a server

      I have a DVR server with linux embeded. It has some telnet functions but i don't have the password for it (the chinese manufacturer refuses to give me the ...
3
votes
2answers
5k views

What is the `shadow` group used for?

On my Ubuntu 9.10 system, there's a shadow system group. There does not appear to be any user assigned to this group at all. The only files that I can find belonging to this group are /etc/shadow and ...
7
votes
6answers
24k views

How should someone create an encrypted password for /etc/shadow?

I am setting up a new account on a Linux box for Subversion repository access, and can send the password to the new user. However, I think there was a command line utility for this new user to encrypt ...
1
vote
2answers
122 views

Diskless login with Linux/OpenSolaris

Is it possible to enable a Linux or OpenSolaris based server to process standard unix login requests without spinning up the hard drive holding the root partition? I have a Nexenta-based (1) server ...