1
vote
2answers
153 views

PBIS Open AD authentication stops working on ubuntu with errors: “user accout has expired” and “is your account locked?”

We have been using PowerBroker Identity Services Open to authenticate active directory users from ubuntu hosts successfully for six months. Recently AD authentication stopped working on several ...
1
vote
0answers
11 views

Dovecot not attempting authentication

I am in the early stages of migrating an OS X mail installation (UW imapd/Exim/mbox) to a Ubuntu cloud VM using Dovecot/Exim/Maildir. I am starting simply: Exim is running fine, receiving mail and ...
2
votes
1answer
52 views

OpenLDAP gives duplicate attributeType error

I am setting up a login node and am using openLDAP from the repository on Ubuntu 14.04 and I am running into an issue of duplicate attributeTypes. The problem seems to lie in the "gecos" field ...
-1
votes
1answer
127 views

Squid Proxy does not prompt for authentication and denies every request

I have a problem with a squid proxy that always denies requests. The bad part is, i never get to see an authentication pop-up... Squid is running on an Ubuntu 14.04 vserver. I'll provide you my ...
1
vote
0answers
189 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 ...
2
votes
1answer
146 views

ssh shared key authentication asks for password, unless sshd runs with -d option

My client is Ubuntu, and the server is CentOS. I have shared key authentication set up to login from client to server. When I run the server like: sudo `which sshd` -d Everything works as ...
2
votes
1answer
471 views

Disable LDAP authentication on Ubuntu

I have an Ubuntu server that is able to authenticate users against our Domain. I can not contact the person who set this up, but I do find these packages installed: libaprtil1-ldap libldap-2.4-2 ...
0
votes
1answer
283 views

Suppress OSSEC email for failed root ssh

I'm running OSSEC as a HIDS on a Ubuntu 12.10 server, and it routinely (3-4x a day) sends me a notification like this: (note the last octet of the IP address has been changed to 'xxx' to protect the ...
0
votes
0answers
154 views

How to ask memcached auth connection by sasl and pam?

I use memcached in a untrust network, so I try to use sasl and pam to auth connection to memcached. I installed sasl and pam module, compiled and installed memcached with sasl enabled. Also I created ...
0
votes
1answer
103 views

Open two sessions in the same browser using virtualhosts with apache2

My two hosts uses the Apache authentication, the first authentication with my virtualhost1 is fine but when I open a new tab for the the second host(virtualhost2), the first is ...
0
votes
1answer
56 views

ssh login using public/private key exchange authorized_keys not working?

I am trying to login from one ubuntu box to another using public/private keys with ssh, but it is not working.. OMD[live]:~/.ssh$ ssh -l myuser -v -i /test/sites/live/.ssh/id.rsa.myuser ...
1
vote
2answers
921 views

Ubuntu server postfix + dovecot authentication, wrong password

I am trying to setup basic e-mail server just for me on my Ubuntu 12.04 following these guides. https://help.ubuntu.com/community/Postfix https://help.ubuntu.com/community/Dovecot I executed ...
0
votes
1answer
320 views

Converting the ssh key

to clone my bitbucket project,I changed the /.ssh/authorized_keys content by adding my bitbucket key and I am able to clone into my bitbucket,but after that I was not able to access my server at EC2 ...
2
votes
2answers
873 views

Is there an easier way to add public-key authentication for new users?

I am in the arduous and painful process of setting up secure users on a new web LEMP server with Ubuntu 12.04. I was initially going to setup something like vsftpd or proftpd but many have suggested ...
0
votes
0answers
368 views

Why would Dovecot POP3 and IMAP Authentication from external IP address stop working?

Over a year ago I setup a Dovecot 1.2.9 POP3/IMAP server (which works alongside a Postfix SMTP server) with PAM authentication. This has been operating (I believe) without incident until recently ...
2
votes
0answers
139 views

testsaslauthd - permission denied

Running: Ubuntu 12.10 32bits server version. I'm trying to connect to the saslauthd and getting the error I mentioned on the title (permission denied). $ /usr/sbin/testsaslauthd -u myuser -p ...
1
vote
1answer
329 views

Ubuntu 12.10 - Can't find my logs

Up until few days ago, my Ubuntu 10.04 worked like a clock. Then I switched to Ubuntu 12.10 and things don't work the same way with this setup. First, the new system wasn't logging any mail activity, ...
1
vote
1answer
103 views

Can't login anymore via sshd

I have been working with SSH for a long time, but recently I have needed to add another user to my set up. I followed some instructions I found on the web and did the folllowing. adduser sam sudo ...
1
vote
1answer
669 views

OpenLDAP Authentication UID vs CN issues

I'm having trouble authenticating services using uid for authentication, which I thought was the standard method for authentication on the user. So basically, my users are added in ldap like this: # ...
0
votes
2answers
219 views

How to authenticate to web based firewall?

I'm new to ubuntu server and I'm trying to figure this out. I have a server install of ubuntu 12.04 behind a fortigate firewall. To get internet access I have to authenticate with the the fortigate ...
2
votes
1answer
169 views

ubuntu likewise authentication for windows shares

I currently use likewise to use my active directory credentials to log on to ubutu (12.04). When I want to mount one of our windows shares, I am prompted for a password again. Is there a way to reuse ...
7
votes
3answers
1k views

How to create a Linux user without a password but being able to set it?

I have a username and an SSH key for a (hypothetical) guy and I need to give him admin access to a Linux (Ubuntu) server. I want him to be able to log in via SSH and then set his password by himself ...
1
vote
2answers
160 views

How to create a new user and exempt the user of key authentication?

1 I have configured Ubuntu server with Key authentication & it is working fine. I have disabled password authentication for key authentication to work. Server is always accessed via remote ...
1
vote
1answer
1k views

Ubuntu Apache2 - restrict access by IP address

In Ubuntu 11.04, I'm trying to Allow from IP without password prompt, and also allow from any address with password prompt. But it isn't working. Everyone from the Internet can access the page without ...
1
vote
1answer
417 views

Ubuntu 12.04 - Pound Reverse Proxy and Adobe Flex/Flash Auth

First time posting, I have a completely fresh install of ubuntu 12.04 Client as a reverse proxy gateway to our internal network. Our setup is we have one external ip but three domains we would like ...
4
votes
1answer
231 views

Weird stuff in in my /var/log/auth.log

I just check my logs on my deed server, I spotted some weird log in the auth.log: Jun 17 22:27:01 mutualab CRON[16249]: pam_unix(cron:session): session opened for user user by (uid=0) Jun 17 22:27:01 ...
2
votes
1answer
1k views

Ubuntu LDAP auth - offline cache / network init speed

I have configured LDAP auth for Ubuntu using this guide. The authentication works, but I have connection problems after reboot & suspend. Although the PC is configured using a static ip, after ...
0
votes
1answer
310 views

login faild when autorize dovecot from pam

I installed dovecot 2.0.13 with postfix in ubuntu server 11.10 , after installation I can send e-mail with the mail command and dovecot works when I test it with telnet I then installed roundcube on ...
0
votes
2answers
805 views

Allow from referer for HTTP-basic protected SSL apache site

I have an apache site protected by HTTP basic authentication. The authentication is working fine. Now I would like to bypass authentication for users that are coming from a particular website by ...
4
votes
3answers
1k views

Sync user accounts over multiple linux servers

What is the best way to sync multiple user accounts and home directories over multiple servers, they will all be the same OS. The servers are in different locations around the world, so if one goes ...
2
votes
2answers
170 views

Can I set up application specific passwords on Ubuntu?

I've got a Ubuntu virtual server that I use for webhosting and other stuff. I've been thinking about moving mail onto it, but I'd like to secure it more against the threat of losing my smartphone. ...
5
votes
2answers
2k views

Network authentication + roaming home directory - which technology should I look into using?

I'm looking into software which provides a user with a single identity across multiple computers. That is, a user should have the same permissions on each computer, and the user should have access to ...
3
votes
2answers
964 views

Account lockout in Ubuntu

I am trying to implement account lockout for Ubuntu systems using pam_tally. The login should be disabled for certain interval on 3 invalid login attempts. This should happen for both system and LDAP ...
1
vote
3answers
828 views

Break-in attempts on Ubuntu VPS box [duplicate]

Possible Duplicates: Is it normal to get hundreds of break-in attempts per day? What should I do if I find someone is brute forcing my server password? I have an Ubuntu 10.04 VPS box. ...
4
votes
3answers
2k views

libpam-ldap or libpam-ldapd?

I'm setting up LDAP authentication on my personal VPS, and Ubuntu has two packages for the same purpose: libpam-ldap and libpam-ldapd. Which should I use?
0
votes
2answers
731 views

LDAP authentication apache 2.2 error 500

This is my LDAP configuration in Apache2.2.x Order deny,allow AuthType Basic AuthName "Test" AuthBasicProvider ldap AuthLDAPURL "ldap://dc1.domain.com:389/DC=domain,DC=com?sAMAccountName" ...
0
votes
1answer
616 views

SSH / SCP connections to Ubuntu server blocked from one remote host but not others

I have a server running Ubuntu SE 10.10. Two Windows 7 machines are attempting to WinSCP / Putty into it using the same credentials. Both are definitely connecting to the correct host, but one gets an ...
6
votes
2answers
457 views

How to set up SSH passwordless key authentication for remote access only, allowing local users to use passwords

I am trying to get an SSH server running Ubuntu 10.04 to allow password logons only when coming from the local network. For all other users, especially those logging in from the internet via the ...
4
votes
1answer
724 views

Slappasswd output randomized

I was expecting slappasswd to produce a fixed hash but it appears that the output is randomized as I never get the same output for the same input password: $ slappasswd -s secret ...
1
vote
2answers
2k views

Connecting to Amazon EC2 over SSH from Ubuntu

I created a EC2 instance using the standard Ubuntu 10.04 AMI. I created a private key and named it EC2-priv.ppk Now I need to connect to the instance from my Ubuntu 9.10 desktop. I'm having some ...
0
votes
1answer
336 views

Setting up Shibboleth to secure part of a website

I've installed the Shibboleth module for apache on Ubuntu 10.04 using aptitude to install libapache2-mod-shib2 as per ...
1
vote
1answer
992 views

Exim4 SMTP Authentication to Courier

I've recently setup Exim4 on an Ubuntu 10.04 server with Courier. Everything is working fine for local mail deliver, the only missing piece is SMTP Authentication. I have an account setup on the ...
0
votes
2answers
736 views

Slow netatalk authentication / connectio speed

i have a netatalk server running on ubuntu server 10.04.1. connecting and moving files works generally, but, when connecting / authenticating the server needs so much time. when i connect using my mac ...
0
votes
2answers
827 views

ssh via public key authentication for users administered with NIS

I'm experimenting with using NIS for centralizing the user management for a network of approx 20 servers. I've got an NIS client and server working, and can ssh to the client machine and successfully ...
0
votes
1answer
2k views

.htaccess Authentication Internal Server Error 500

I am trying to setup an authentication for a directory on a ubuntu server and when i sign in i get a 500 Internal Server Error I have the following: AuthUserFile .htpasswd AuthName "Sign In" ...
0
votes
4answers
2k views

Samba authentication problem when attempting to connect from Windows client

I've got a Linux server running Ubuntu and Samba. I've created two shares in Samba that point to directories that are owned by the user "cameron". When I attempt to connect to these shares on Windows ...
1
vote
6answers
1k views

Authentication failed of pure-ftpd

I installed pure-ftpd on Ubuntu 8.04 using aptitude install pure-ftpd What's the step to add users? I'm new to pure-ftpd and PAM authentication. but I followed pure-ftpd documentation to do pure-pw ...
3
votes
2answers
187 views

SSH Login to an EC2 instance failing with previously working keys

We recently had an issues where I had rebooted our EC2 instance (Ubuntu x86_64, version 9.10 server) and due to an EC2 issue the instance needed to be stopped and was down for a few days. Now I have ...
1
vote
3answers
69 views

Picking up a lot of failed authentications for various accounts

My server is getting a lot of various failed authentication attempts for various accounts. The most common one (that I've seen ) or the root account. I have since enabled Fail2Ban and ran several ...
3
votes
4answers
1k views

What is the best way to keep subversion users and passwords in synch with Linux users?

I'm not sure what is best, keeping subversion users and passwords in synch with linux users and passwords or just having linux somehow provide subversion authentication service. I'd prefer to just ...