1
vote
0answers
46 views

What are the mathematical implications of an overly-restrictive password policy? [closed]

I came across an interesting password policy online recently: "Please be sure to enter a password that meets the following criteria: must be 8 characters long must not be based on dictionary words ...
0
votes
0answers
25 views

AD LDS changing password events

We've implemented AD LDS and we want to monitor password changes on it. However, the events I see doesn't provide much information. The only thing I see is this 4793 event (Security logs) The ...
2
votes
2answers
108 views

Is it wise to use very secure password for sudo users when using SSH Keys for server login?

I am not asking how to do anything here, rather trying to understand best practices and the "right" way to handle server security. To prevent brute force password attacks, I have secured my server in ...
5
votes
4answers
2k 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 ...
2
votes
3answers
220 views

Should I create a password for a user if they only will be using ssh key authentication?

I am adding a new user account (to a CentOS 6.2 box) which will only use ssh key authentication (with a strong key passphrase of course). I have disabled ssh password auth in sshd_config. Should I ...
1
vote
3answers
201 views

Your thoughts on managing passwords in a corporate server environment

Good evening, I'm thinking about implementing some way to manage passwords for our Linux/Windows servers based solely on security concerns and an ever growing number of servers. How do you do it? ...
6
votes
3answers
2k views

Managing service passwords with Puppet

I'm setting up my Bacula configuration in Puppet. One thing I want to do is ensure that each password field is different. My current thought is to hash the hostname with a secret value that would ...
2
votes
2answers
145 views

Is there a password agent for the mysql command-line client?

I use the mysql command line client frequently. Sometimes I wind up typing in my password dozens of times per day, and I'm getting really tired of it. SSH has a neat utility called ssh-agent which ...
4
votes
3answers
826 views

Why do some websites prevent you from using non-alphanumeric characters in your site password? [closed]

I logged in to a website today and found this message: As a part of new security systems upgrades, we are requiring all existing customers to change their password to enhance the protection of ...
3
votes
2answers
259 views

Centrally managing logins to lots of linux machines

We have a growing collection of servers, both physical and virtual, which we need to login into. Login is usually with SSH, using an RSA key pair rather than a password (which is switched off in SSH ...
0
votes
1answer
68 views

How google,yahoo and other mail services securing passwords?

How Google,yahoo and other top level mail services securing passwords ? What technology they are using for securing and storing ? How they managing mail passwords ?
0
votes
1answer
2k views

How to configure password maximum days before it expires?

I want to set Maximum days of a password can be used. So I configure PASS_MAX_DAYS in /etc/login.defs, and PASS_WARN_AGE to warn user before the password expired. In my example, I set PASS_MAX_DAYS = ...
5
votes
4answers
1k views

Best way to securely communicate passwords and credentials to clients?

Often I end up doing server administration for clients as part of developing web applications, I always set up access for myself using an SSH Key pair. I usually end up choosing a random password for ...
1
vote
5answers
2k views

How can I use fetchmail (or another email grabber) with OSX keychain for authentication?

Many fetchmail tutorials I've read says putting your email account password clear-text in a config file is safe. However, I prefer security through layers [silly example: if my terminal is up and ...
4
votes
3answers
585 views

How to test passwords against a word list with fuzzing

How can I test passwords against a dictionary / word list, where the entries have been fuzzed to some degree? By "fuzzed", I mean variants of words with "l33t" conversions and other character ...
2
votes
10answers
463 views

Steps to take to protect against the “unthinkable”

We have two sysadmins who know the passwords to all our systems. If the "unthinkable" happened (AKA "they both went under a bus") there is currently no way for the remaining team members to obtain ...
3
votes
3answers
969 views

Lock Workstation Glitch? (AD/Windows XP)

I was playing with a lab setup recently (Windows 2003 R2 x32 SP2, Windows XP SP3, Active Directory) and noticed that if I locked the workstation, the following strange behaviour appeared: I have a ...