Red Hat :: Local Users Can't Login / Resolve It?

Feb 7, 2011

I have an RHEL 5.3 system where NIS logins are working perfectly, but authentication doesn't seem to be working for non-root local users. I can't login either remotely or at the console with a local user, and I can't even su to them unless I'm doing so from root (i.e. when no password is required).

I've reset the password, I've deleted and recreated the user, and nothing. nsswitch.conf does have "files" listed as part of the config, which was really the main place I'd have assumed the issue could be. su gives "incorrect password", and ssh gives "userauth failure". /var/log/secure shows "su: pam_listfile(su:auth): Refused user <username> for service su", and same for the ssh attempts (with ssh in for su, of course). I've reviewed my pam.d files, and they seem to be the same as on a working machine, but I'm not 100% conversant with pam so I might be missing something.

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Networking :: How To Resolve Packet Loss - Users Are Unable To Login To The Workstation

Apr 29, 2010

I have linux workstation. All users home directories are NFS mounts.

Since I am facing packet loss issue users are unable to login to the workstation.

I found the packet loss using mtr from workstation to filer.

Matt's traceroute [v0.54]

Hostname

What are the things I have to check to resolve this packet loss.

Following is the ethtool out put of the workstation

Settings for eth0:

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CentOS 5 Server :: Vsftpd - Can't Login With Local Users

Mar 18, 2010

I'm trying to configure vsftpd to just allow my local users to login and be confined to their home directory (and its sub-directories).

Here is my vsftpd.conf:
listen=YES
anonymous_enable=NO
local_enable=YES

[Code].....

I've tried multiple configurations to no avail. I always end up with this same end result.

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Ubuntu Servers :: Local Users Are Sending Mails Through Ms Outlook Using Local IP?

Jul 26, 2011

I have a postfix mail server on ubuntu 10.04 lts behind a router. so all local users are fetching/sending mails through ms outlook using local IP. Sometimes when internet goes down and any mail send then it bounced back immediately saying domain not found. Can u please tell me how i configure to hold all mails in postfix server rather than bounce when internet fails and will pass through when restored the internet around 15-30 minutes?

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Fedora :: Mapping Remote Users To Local Users In SSH?

Jun 7, 2010

Is it possible to map a remote user to a local user in SSH? The object is to avoid using $ssh user@server and instead just do $ssh server instead.

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Ubuntu :: How To Map Domain Users To Local Users Group

May 27, 2011

how to map all domain users form group Domain Users to local group users (and maybe some more)? Im using Ubuntu 10.04 x32. Its connected to my domain using Samba and Winbind, I can login using my domain credentials, automatically map user folder form DFS server, but I think that domain users have too much priviledges in the system and want to restrict them as much as possible

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General :: Only Limited Users Should Login In NIS (not All Nis Users) RHEL 5.4?

Aug 1, 2011

i have a NIS master server and 4 NIS clients. out of 4 nis clients two are acting as login servers ie users will login and do all their stuffs and the remaining two are application servers. But sometimes users login into applications servers and started doing all their developer's job. i want to allow only a limited number of users tointo this application users not all the users who are all part of the nis domain.all the systems are running RHEL 5.4 on hp's proliant x86_64 based servers. Please advice me how should i proceed? enabling ip tables is not possible in my environment.

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Red Hat / Fedora :: Can't Resolve .local Domains?

Aug 29, 2010

I am using FC13 with BIND. I have a slave zone setup for my work domain. I can resolve .local FQDNs from the shell using NSLOOKUP but any .local FQDN from an application (GUI or CLI) results in "ping: unknown host". All other domains resolve fine. My guess is there is something with BIND that sees .local as an invalid domain suffix. Is there an option that I need to set/modify to force the resolution of .local entries?

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OpenSUSE Network :: Resolve Local Hostnames Without DNS ?

Jul 14, 2010

How do you get linux to resolve local hostnames without DNS?

I've recently migrated from a fully windows home network, to a few linux machines and im unable to ping any local machines with hostname via these linux machines. i can ping IP and internet hostnames. also, windows > anything pings ok too. however linux > anything will not ping via hostname.

I beleive it's an additional service running on windows to resolve hostnames without DNS (wins/netbios).

DNS is done via a netgear DG834 router (DNS forwarding).

I know i could either use direct IP, or add machines into the hosts file, but im wondering if theres some way around that and to have it dynamically update like it does on the windows machines. static mappings seem a bit silly inside DHCP zones

I've seen some reports of avahi causing local network issues (taking over the .local domain), but i think this only extends to having to manually enter in .local after the hostname and even after removing avahi, the problem is still present.

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Debian Configuration :: Cannot Resolve Local Network Names Only

Jul 25, 2010

I have three Debian systems running, along with several XP laptops, PS3 and two DirecTV systems. I use two of the three Debian systems as media servers, and the third is an older system mostly for playing around with. My home network is running fine with the following nuisance. The two newer Debian (Lenny) systems are <barney> and <mitzi>, the older is named <oscar>, running Debian Sarge 3.1. From either locally or remote login to <barney> and <mitzi> I can ssh into either of the other two systems, however when logged into <oscar> I cannot ssh by name to either of the other systems. e.g. ssh: mitzi: Temporary failure in name resolution..However, from <oscar> I can ping outside my network (e.g. ping www.google.com) with no problems.I can also ssh to the other systems via IP address, just not by name.

I've compared the /etc/ssh/ssh_config, /etc/resolv.conf, /etc/ssh/sshd_config and other files between the two systems and not seeing anything peculiar. arp, route, etc., don't show different behavior between the systems either.

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Ubuntu Networking :: Resolve Local Network Names?

Mar 27, 2010

I'll apologize in advance for I'm sure this has been covered already, but I'm not sure of the search terms to even use to begin solving this problem. I don't know what I don't know.

I have three computers on my home network and want to reach them by their name instead of IP address since their ip is dynamically assigned. I'm using a Linksys WRT54GL router and have noticed that there exists a "DHCP Clients Table" in the router that seems to hold all the necessary information - host names and ip addresses.

How can I get my computers to use that as the lookup table to resolve the host names? And is this even an optimal way of being able to resolve local names?

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Ubuntu Networking :: Can't Resolve .local Domains Anywhere Except With Nslookup

Nov 29, 2010

I'm finding that I can not resolve .local domains anywhere except with nslookup and found on the LucidLynx release notes that there is a problem with avahi causing this. Although the avahi service is convenient for locating printers and such can anyone else tell me what other services/options will be impacted on a default installation of Ubuntu if I disable this service?

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Networking :: Dns Server Not Able To Resolve Local Domain Names

Mar 19, 2009

I recently installed bind9 on mandriva 2008.1, after having done the necessary configuration.. I still can't find my domain I configured cant ping on other machines on the LAN but can actually ping on any other website on the internet even though name server is configured to point to local machine..... I dont understand what I'm doing wrong.

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OpenSUSE :: Impossible To Drag Articles Into Local Folders / Resolve This?

Sep 16, 2010

Running knode with 11.3 and KDE 4.5 (same problem with 4.4) it is
impossible to drag articles into local folders. Indeed there seems no
way of using local folders at all. Is this a bug, or something wrong
with my setup?

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Ubuntu Networking :: Configuring Bind To Resolve Local Hosts?

May 24, 2010

The little home server of mine has bind configured as a caching dns server. I would like to configure it to resolve local host names. I know dnsmasq can do this, so what would someone need to do to get bind to do this?The network is entirely private with all private IPs which are distributed by dhcpd.(While writing this, the feeling creeps in that it would be easier to just have dnsmasq running.)

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General :: SSH Login - For Additional Users After Password-less Login Setup

Feb 10, 2010

I've set up password-less login for user1 on a Ubuntu machine to login automatically into a Fedora box using the publickey authentication method. Everything is working smoothly. Now, there is a user2 on Fedora but he does not have an account on Ubuntu.

I tried to login as user2 from Ubuntu to but got the following error :

Code:

Predictably neither scp or sftp work either. I have several questions as a result.

1.Is the SSH server rejecting user2 login because I am inadvertently using user1 keys (as I am logged in as user1) ?

2. Do I need to have a user2 account on Ubuntu and public/private key authentication setup with Fedora for user2 to be able to login ?

3. Is there a method I can use to password login as user2 from Ubuntu to Fedora (even though there is no user2 account on Ubuntu) AND still keep password-less login for user1 or do I have to have password-less login for both ?

At present the only way to access the user2 account from Ubuntu is to SSH using the user1 account and then su to user2.

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Ubuntu Networking :: Windows Clients Lose Ability To Resolve Local Domain Names

Dec 2, 2010

I have an internal domain (dev.lan) for which my Ubuntu server is authoritative. We have a number of subdomains under that domain (test.dev.lan, svn.dev.lan, etc.). The server also acts as the primary DNS server for my office. It was originally set up under Ubuntu 8 and worked great.

However, ever since we upgraded to Ubuntu 10, our Windows clients periodically lose the ability to resolve domains on the dev.lan domain. Internal IP addresses can still be pinged from the Windows machines so it does not appear to be a network-connectivity issue. External domain names continue to resolve without any problems. The only workaround is to restart networking on the Windows clients. It's frustrating because it happens several times a day.

bind9 logs no obvious error messages.

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Fedora :: Pulseaudio - Access For All Local Users ?

Apr 8, 2010

This one made me scratch my head for a very long time

I want to give access to the sound device to all local users.

Currently only the user currently using the X11 system and root are able to use the sound hardware.

So it appears it's a problem of permissions but I couldn't figure where ...

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Ubuntu :: Share Files Among Local Users?

Apr 12, 2011

I want to have a shared area for movies, music, etc. where files are available for all users. What is the best way to do this? I've tried a few different things, (ie. creating a folder and sharing it among a group, but for some reason it doesn't seem to work the way I want it to. I'm now thinking maybe have a partition like /share and set the permissions to all in fstab, but I'm not sure.

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Ubuntu Security :: Disallow Both Ssh And Scp To 'other Local Users'

Jun 23, 2011

I am stuck in a weird situation and could definitely use some help from gurus in security area.

I have categorized my users into 3:
1. root user
2. other local users
3. LDAP users

I want to setup following 2 usecases:

a)
1. Allow keybased ssh and scp to root users
2. Allow ssh but disallow scp service to other local users
3. Disallow ssh and scp to LDAP users

b)

1. Allow keybased ssh and scp to root users
2. Disallow both ssh and scp to other local users
3. Disallow ssh but allow scp to LDAP users

For the 1. in both cases, I think PermitRootLogin in sshd_config could . For the 3. I am thinking of deploying rssh to control scp service access, since ssh will be restricted anyways.

Problem area is 2. primarily.

i) How to allow ssh but disallow scp to 'other local users'
ii) How to disallow both ssh and scp to 'other local users'

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General :: Changing Password For Local Users?

May 6, 2010

I am on ubuntu server and its joined to an W3k Domain thru winbind/samba. However everything works fine and Windows and Local users can login to the machine without any problem. However when I wanted to create a local user X and change his password I couldn'tIt created the local user X but I could not change the password. Here are the outputs:

Pam configs:
Common-account:
account sufficient pam_winbind.so

[code]...

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Server :: Merging Local And LDAP Users?

Oct 5, 2010

"Merging" may not be quite the right word but that is the desired end result.

Scenario: many Solaris 10 servers, each with various local users. We want to set up LDAP for all for all of them. LDAP server is set up, procedure for getting other servers to use it for user authentication is documented and tested. The question is how to handle users that are in LDAP who also exist as a local user on a given machine.

It appears that the usernames on both sides follow a convention and therefore match but obviously the userids will not match. Local user joe has userid 1234, LDAP user joe has userid 56789.

The way I see it we'll have to:

1. move local user joe's home directory to the path that LDAP user joe will want

2. change local user joe's userid to that of LDAP user joe

3. change joe's files' owner to his new userid

4. remove local user joe

5. finally configure LDAP

Is this a rational procedure? Is there a more effective method? I'm not looking forward to this as there are many servers and each of them have a different set of local users, each with different userids which will have to be handled manually and individually therefore not even scriptable much.

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Fedora :: Ssh Local Users Could Not Open Session Error

Nov 1, 2009

I have some typical issue while trying to connect to my root or other users from my terminal.

like su - asking for password and after that it displyed a message like $su -

Password: could not open session

I tried connect using ssh then I am getting the following $ssh root@localhost Last login: Sun Nov 1 14:13:45 2009 from localhost Connection to localhost closed.

Background: Before this happended, I was tryied modify sshd_config in /etc/ssh/ folder to allow passwords less than 2 words.

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Ubuntu Networking :: App To Check Local Users On Network?

Jan 11, 2010

I remember back when I used Windows, there was a shell command call "net view", which would allow me to see all the other users on my wireless net.

Is there any command or application that can do this? I dont mind if it is a terminal command either, but I would really like to know a way that I could see other users on my network.

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Ubuntu Networking :: Changing Password For Local Users

May 6, 2010

I am on ubuntu server and its joined to an W3k Domain thru winbind/samba. However everything works fine and Windows and Local users can login to the machine without any problem. However when I wanted to create a local user X and change his password I couldn't. It created the local user X but I could not change the password.

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Ubuntu :: Share A Folder With R/w Access By Two Local Users?

May 15, 2010

This seems like somewhat of a n00b question, but I'm kind of stumped and working on a half a dozen other things at the moment, so I thought I'd go ahead and ask it.

Is there a "correct" way to set up a shared folder between two local users using only EXT4 that will allow both users read & write access to everything in the folder?

Here's my scenario: My wife and I use the same computer. I want two separate user accounts (mine and hers), but I want ~/Music to point to the same location for both users so that I don't have to duplicate all of the files.

Too protect the innocent, I'll use Jack and Jill.

So say Jack downloads or rips an album:

"/home/jack/Music/Radiohead/Ok Computer"

I want Jill to be able to able to create a folder:

"/home/jill/Music/Radiohead/Hail To The Theif"

I know the basics of symlinks so I can get /home/jack/Music and /home/jill/Music to point to the same place. I also have Jack & Jill in the same group.

The problem I'm having with my test setup is when Jack creates "/home/jack/Radiohead", it is set up to where Jill can read, but not write. So she can play songs from Ok Computer, but if she wants to download Kid A, she has to go in and manually change the permissions on Radiohead first.

Also, while I might set up multiple directories this way, what I DON'T want is for Jack to be able to modify /home/jill/otherdir where otherdir is just a regular directory set up with default permissions.

Oh, and as an added bonus, it would be nice to set up another account (i.e. a "guest") with limited permissions that can read, but not write/modify.

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Networking :: Sendmail - Change Domainname Local Users

Mar 26, 2010

I have the following problem and tried (almost) anything to fix it but without a full success.

We're running a server with CentOS 5.4. Every night a logwatch report is send. These mails are rejected by our mailserver because some invalid details. These mails are send to local user root which is redirected to another external mail address with /etc/aliases.

At first the mail was send from root@localhost.localdomain to root@localhost.localdomain. As you can imagine, our mailserver rejected this because the localhost.localdomain parts. So I changed the sendmail config with these options:

Code:
dnl EXPOSED_USER(`root')dnl
FEATURE(masquerade_envelope)
MASQUERADE_AS(`domainA.com')
MASQUERADE_DOMAIN(`localhost.localdomain')
MASQUERADE_DOMAIN(`slave02.domainA.com')

This solved my problem partially: Mail is now coming from root@domainA.com (which is OK), but is send to root@slave02.domainA.com (slave02 is the local hostname), which is not OK. I tried everything I could find to change that last part to, but nothing seems to work.

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General :: Make All NIS Users Members Of More Than One Local Groups?

Nov 25, 2010

Is this possible to make groups members of a group (the same way aliases work for the mailing system). If not is there a painless way to make all my nis users members of more than one local groups? Maybe set this on the nis side and not per machine setup?

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Server :: When Sent Mail For Local Users Its Delivered Locally

Sep 22, 2010

I installed sendmail in RHEL5.4 with TrendMicro Spam scan engine. The configuration like sendmail should forward all the mails to scan engine after scanning it will deliver it to the mail domains. same way all the mails coming from external servers are scanned and the delivered to local box. My problem is when i sent mail for local users its delivered locally. but when i sending mail for external like yahoo its going through scan engine. I added the smarthost in sendmail.mc file also.

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Debian Configuration :: Postfix Not Delivering To Local Users / Sort It?

Mar 24, 2011

I did search the forum but didn't find an answer.

I have setup Postfix + Dovecot on my basic debian 5 server. If I send a message to a localuser@mydomain.com from mutt, it delivers just fine and is visible when viewed through squirrelmail, I can also send just fine.

My issue is that irrespective of what options I set in main.cf, I cannot for the life of me get Postfix to stop erroring with "Recipient address rejected: User unknown in virtual alias table". I'm stumped.

My main.cf is as follows code...

I do not want to setup virtual hosting with MySQL or similar, I literally want to receive mail in local users mailboxes for a single domain. Any ideas on what's missing?

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