Server :: Can't Log In Over SSH - Shows Invalid User When They Really Aren't
Oct 21, 2010
Recently I started having this problem where most users on the system are unable to log into the system over SSH. Their user name and password is correct, however it shows them as invalid when they are in fact valid. I've tried changing their password but that didn't work. I also tried deleting their account, as well as their home directory, and then recreating the account, but that didn't work. Only root and perhaps one or two other select accounts are able to log in without problems. I even tried a reboot to see if that would fix it, but as I theorized, it wouldn't. I also checked and ensured their home directory was chowned to them, and that they even had a home directory. Any assistance would be greatly appreciated to help me get this issue resolved. As a dsie note, they are showing up as invalid in /vars/logs/auth.log. Running Debian 5.0 Lenny.
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Feb 10, 2011
Trying simply to insert into table. Have succeeded in doing this but now want to correct user use of invalid characters. If I'm understanding correctly, Real-escape-string seems to correct these, so I've been trying to figure out how to use it. A short, test code version gives me a syntax error at INSERT VALUES, which--because it still has the single quotes in the text--tells me the real-escape-string didn't work. The code below gives me a parseing error with invalid $END at </body>.
Insert Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' VALUES (UTC_TIMESTAMP,'What's happen' bra?')' at line 1 Parse error: syntax error, unexpected $end in /home/powere15/public_html/DB/exercises_insert_record.php on line 94
<html><head><title>Exercise Catalog Insert Record</title></head>
<body>
<?
/* Change db and connect values if using online */
[Code]....
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Jan 4, 2010
I've got a server running CentOS 4.8 (binary compatible RHEL 4.8 clone) that's decided all the accounts are expired.I've tried this on multiple accounts so far, to no avail.chage -l <username>Shows that the account never expires. In this case the problem was first noticed with the root account, then I tested it with my user account, and got the same answer, the account never expires.For the test I added a crontab to my account, and to roots, ever minute run "whoami"In the log I get (once for each crontab):rond[]: User account has expiredRecycling crond doesn't help, and I can't recycle the box itself as I've got users on it (pounding away at the poor box at that).
Several searches so far have only turned up that locked root accounts (ala debian/ubuntu) can cause this, and check or correct the age of the account using chage.Comparing entries in /etc/shadow to other boxes where everything is kosher doesn't seem to help either: the important bits are identical.
Working box:
kschmitt:$1$QykLetnt$ynSZ.7uKQSRnS3lsYe01w1:14613:0:99999:7:::
Screwie box:
[code]...
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Nov 26, 2015
I just installed Debian Jessie (3.16.0-4-amd64) on a desktop box I intend to use as a server in our home office. During installation I included the web server and SSH server options. I have a user account, 'mitchell' set up in addition to root. Everything is working great except that I am unable to log in via SSH from other machines, such as a Windows desktop also on the office LAN (using PuTTY). From the PuTTY terminal it looks like the user name is accepted because the password is requested, but after entering the password it says "Access denied".
Back on the Debian box in I see:
Code: Select allNov 26 14:12:02 DebianDevP6TSE sshd[2278]: Invalid user mitchell from 192.168.1.96
Nov 26 14:12:02 DebianDevP6TSE sshd[2278]: input_userauth_request: invalid user mitchell [preauth]
Nov 26 14:12:07 DebianDevP6TSE sshd[2278]: pam_unix(sshd:auth): check pass; user unknown
Nov 26 14:12:07 DebianDevP6TSE sshd[2278]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=rmbiserv.attlocal.net
Nov 26 14:12:10 DebianDevP6TSE sshd[2278]: Failed password for invalid user mitchell from 192.168.1.96 port 60010 ssh2
So I am guessing I need to set up either the SSHD server, or maybe something in PAM, to authorized users for SSH access?
As a note, "mitchell" is the user name I use to log on to Debian, and I am entering the same user name and password when trying to log in via SSH.
If I try to log in via SSH as "root" I get the following in the log:
Code: Select allNov 26 14:17:01 DebianDevP6TSE CRON[2329]: pam_unix(cron:session): session opened for user root by (uid=0)
Nov 26 14:17:02 DebianDevP6TSE CRON[2329]: pam_unix(cron:session): session closed for user root
Nov 26 14:29:59 DebianDevP6TSE sshd[2383]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=rmbiserv.attlocal.net user=root
Nov 26 14:30:01 DebianDevP6TSE sshd[2383]: Failed password for root from 192.168.1.96 port 60132 ssh2
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Dec 20, 2010
I am trying to authenticate against an LDAP server using PAM. I've gotten it asking the LDAP sever if the credentials are OK, but it still fails the authentication. In /var/log/auth.log, I get:
Code:
Dec 9 14:47:31 Linux-Test sshd[2339]: Invalid user {{user}} from ::1
Dec 9 14:47:31 Linux-Test sshd[2339]: Failed none for invalid user {{user}} from ::1 port 34571 ssh2
Dec 9 14:47:34 Linux-Test sshd[2339]: pam_unix(sshd:auth): check pass; user unknown
Dec 9 14:47:34 Linux-Test sshd[2339]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=linux-test
Dec 9 14:47:34 Linux-Test sshd[2339]: pam_winbind(sshd:auth): getting password (0x00000388)
Dec 9 14:47:34 Linux-Test sshd[2339]: pam_winbind(sshd:auth): pam_get_item returned a password
Dec 9 14:47:38 Linux-Test sshd[2339]: Failed password for invalid user {{user}} from ::1 port 34571 ssh2
Where {{user}} is the username.
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Apr 12, 2010
I want to connect to a vpn server and I'm using debian 5.
I installed Kvpnc package but when I try to make a new profile I choose "Microsoft pptp" as vpn type and I receive the following message: the required daemons (pppd and pptpd) aren't availabale
Is there anyway to download required daemons in another computer and use them in my computer (I'm worried about dependencies)?
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Apr 8, 2010
I have a script in which it searches the password file for a username based on the user's input. Is there a way I can take the bad input and keep it in a variable. (one that keeps adding all the non-existent users)so how would I get non-existent users into another variable?
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Feb 5, 2010
today i got this message everytime i try to login to yahoo messenger:"gyachi invalid user or incorrect password !" The user and password are corect, if i switch to kopete or pidgin is all right.Only with gyachi i have that problem. Using Fedora 10, gyachi improved v1.2.3
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Oct 11, 2010
I have webmin and usermin setup.Iam using dovecot and sendmail ,I can use usermin to login ,check or send emails.Outlook and thunderbird works as well.
But I want to use something for webmail. I am trying squirrelmail but it keeps saying invalid user and or password.
the error log reports
dovecot: imap-login: Aborted login (auth failed)
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Jan 14, 2009
I installed the FC8.0 by hard disk! The system in (hd0,0) is windows xp! THEN i copy vmlinuz and initrd.img to c: Using GRUB like this:
title Install Fedora 8
kernel (hd0,0)/vmlinuz
initrd (hd0,0)/initrd.img
when finished to choose the keyborad the installing started but it said:
ImportError:/user/lib/libdhcp6client-0.10.so.0:Invalid ELF header
how can I continue to install?why this happens?
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Mar 26, 2010
Ive just installed Debian Lenny and then fglrx and kde, but if i try to login to kde, i get an error message because of invalid user. Do I have to enable my user first to login to kde or something?
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Feb 21, 2010
I just did a clean install of suse 11.2. I then installed acct, using yast2.Finally I did:sudo /sbin/chkconfig psacct onsudo /etc/init.d/psacct startSo far so good. The problem is that if I now do:sudo /usr/sbin/sa I only see root processes. None of the user processes seem to show up. If I run it with -m flag, I just see a total and a root row, no users show up at all. But I do have user accounts on the machine, and I am working in one of them (only root when necessary).Any ideas why, or what to do about it? Is there something else that has to be configured?As I understand it, sa -m should show a summary for all users, not just for root.I want to be able to see how much time different users are using.
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Jun 20, 2010
I am running Fedora 13 - 64-bit variety and using KDE as the gui. No real issues asides from machine not exactly flying, but then this is a mere core 2 duo 1.6 with 2 gigs of ram, so not unexpected...
When I run top I see 3 users indicated - which worries me somewhat... I am the only user on this machine.
I come from a Debian / Ubuntu /Gentoo knowledge-base and this laptop is a fresh install, encrypted partitions, temp has own partition (encrypted too) and obviously the firewall is on, with ssh service turned off and ssh access removed in the firewall....
is this 3 users in top normal, or have i managed to be hacked in the 3 - 4 days since I started the install ? In all this time I have been sitting behind a router when on the net.
Am I looking at a fresh install, or are there valid reasons for the extra users?
I just ran "users" in terminal and I show up 3 times - I have only logged in once, through the GUI and no extra access routes
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Mar 16, 2010
I have a BASH script which at one point asks the user a yes/no question. I want to make it so that if the user types in an invalid input 3 times consecutively then the BASH script will echo an error and terminate with exit status 1.
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Jun 9, 2011
I've checked gdmsetup and there isn't anything that I can see that keeps my general users from getting in remotely. I can get the Gnome to login as root but not as a user. SSH from PuTTY works fine for all users. The error I get actually says that the username or password is incorrect - checked using SSH and it is fine.
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Jan 10, 2011
I'm using NFS and I have the following problem. After ~100 days, the client and server lose connection, but the client doesn't know about this, it gives no error. The problem is that the changes on the server side aren't visible on the client side.
The nfs options are: "noatime, nolock, hard, udp, notcp, nosuid, nodev, rsize=8192, wsize=8192, actimeo=60"
The kernel version is: 2.6.16.27 built with 250 Hz. Is this an already corrected issue in a kernel version? Or are my options wrong?
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May 4, 2010
Lucid is not in testing but it's released.It seems it works now, with all desktop effects activated and switching users and closing sessions.The only thing I still don't know is which screensaver can I use if removing gnome-screensaver?
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Sep 20, 2010
I installed Debian 5.03 Lenny successfully on my machine. I got this error during boot: ACPI : invalid PBLK length [5]. After that the Operating System boots properly and starts normally. What does this error statement mean? Is it safe to work with this installation despite this error?
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Jun 21, 2010
I have installed squid 2.6,sarge,webmin 1.5,squidguard1.3, dansguardia in a centos 5.4 version.Since I want to implement the password change option using web, i installed changepassword 0.9.Everything was working fine except the changepassword cgi. I can see the interface of change password screen and when i tried to change the password using web, it displayed "user not found or invalid.Please go back and try again." But actually there is a user with that password. My password is stored at /etc/squid/squid_passwd.I have changed the permissions to 777 .But all in vain. Where i can search for the logs?the httpd log is as follows
[Mon Jun 21 22:02:35 2010] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Mon Jun 21 22:02:35 2010] [notice] Digest: generating secret for digest authentication ...
[Mon Jun 21 22:02:35 2010] [notice] Digest: done
[Mon Jun 21 22:02:35 2010] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations
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Feb 11, 2011
I am running apache httpd-2.2.3-43.el5.centos.3 When i restart the http, it says the following error "Invalid command 'JkSet', perhaps misspelled or defined by a module not included in the server configuration "
Do I need to install anything like tomcat? or include any configuration setting in apache? kernel version: 2.6.18-194.32.1.el5
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Jun 4, 2011
Apache is complaining about an error with SetEnvIfNoCase when I tried to start it. I've checked that the module /usr/local/apache2/modules/mod_rewrite.so exists. Also the 2nd code block below shows that I'm using the <IfModule rewrite_module></IfModule> tags so if the module isn't available, Apache shouldn't have read that part of the file. The fact that it's reading inside that tag pair means it's able to load the mod_rewrite.so DSO.
Code:
[root@test httpd-2.2.19]# service httpd restart
Stopping httpd: [FAILED]
Starting httpd: Syntax error on line 203 of /usr/local/apache2/conf/httpd.conf:
Invalid command 'SetEnvIfNoCase', perhaps misspelled or defined by a module not included in the server configuration
[Code]...
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Jul 31, 2010
I'm using Ldap to authenticate some services in my company, but from a few days, i finds some errors saying
Quote:
I'm using webmin to manage its servces.
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Aug 26, 2010
i enabled LDAP authentication for group in apache2.2 is working fine. When i enabled sub group search using AuthLDAPSubGroupDepth 1 is showing error Invalid command 'AuthLDAPSubGroupDepth', perhaps misspelled or defined by a module not included in the server configuration here below the ldap coding for apache2 running in ubuntu 10.04
AuthzLDAPAuthoritative on
AuthType Basic
AuthName "xxxxx"
AuthBasicProvider ldap
AuthLDAPSubGroupDepth 1
[Code]...
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Nov 26, 2010
Option -m: Invalid argument near character 14
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May 2, 2010
My connection manager shows wired connections and shows wireless as being disabled. here is some terminal info getting wireless going?
Here is a bunch of things I have tried and the results.
nixon@nixon-desktop:~$ sudo ifup wlan0
Ignoring unknown interface wlan0=wlan0.
nixon@nixon-desktop:~$ sudo ifdown wlan0
ifdown: interface wlan0 not configured
[Code].....
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Jan 8, 2010
I'm encountering a strange problem. I need to open and forward all UDP and TCP ports related to VoIPtelephony (5000:32000) in the Suse 11.1 server that's acting as router/firewall in our setup. The ports must redirect to a Asterisk server in the local network. (This server has the IP adress 192.168.0.3)I've opened ports in Yast (Firewall>Ports>Advanced) and putted in some masquerading rulesirewall>Masquerading):0/0,192.168.0.3,tcp,5000:31000,5000:310000/0,192.168.0.3,udp,5000:31000,5000:31000when I do a nmap localhost I get:Starting Nmap 4.75 at 2010-01-08 16:52 CETInteresting ports on localhost (127.0.0.1):
Not shown: 991 closed ports
PORT STATE SERVICE
21/tcp open ftp
[code]....
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Aug 30, 2010
i'm runung "ubuntu 10.4" and install "Xampp 1.7.3.a" i have 3 problem in the joomla web installer in step "2:Pre-installation Check"
Code: configuration.php Writable NO
in step 5 : FTP Configuration when i feel ftp setting and click on "verify ftp setting,get this error Code: Error: the XML response that was returned from the server is invalid.
inthe final step when i click "install sample data" i get this error
Code:
Error: the XML response that was returned from the server is invalid.
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Nov 11, 2010
I had a RAID controller in a system that would not load Virtuozzo. So I deleted the array created by the 3Ware 9550SX controller before removing it and one drive from the CentOS 4.8 server. Even though I deleted the array when the server boots it shows an error:
ERROR : asr : invalid RAID config table
How can I clear and remove the table without having to reload the OS? Can I? Di I need to run the Seagate Tools and reset the drive?
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Dec 3, 2010
M trying to install sendmail server on rhel6.i am having problem in setting up openldap.
following is slapd.conf
#
# See slapd.conf(5) for details on configuration options.
# This file should NOT be world readable.
#
include/etc/openldap/schema/corba.schema
include/etc/openldap/schema/core.schema
code....
but if i try to change ldap password it gives
ldap_bind: Invalid credentials (49) error
i was successfully able to restore my ldif file from old rhel 5.3 server on to rhel 6
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May 10, 2010
My linux version is Red Hat Enterprise Linux AS release 4 (Nahant Update 5) 64-bit.
One of my file system's df -h output shows
But when I'm going to create any file or folder it shows no space available. When I put df -i it shows not much more space available.
How can I resolve it? How can I clear the unlinked or unused inode? or how can I control the inode to prevent file system full?
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