similar to: 64.31.19.48 attempt to break into my computer

This seems to be common thread on the list, but I'm pulling my hair out and have to ask.. I've been following a couple of guides and using AD to authenticate users on my linux system. These include the ubuntu guide -- https://help.ubuntu.com/community/ActiveDirectoryWinbindHowto - https://wiki.samba.org/index.php/Setup_Samba_as_an_AD_Domain_Member -

Hi, Got some issues regarding Kerberos and Directory Server and hope someone can help me out. Used these for the configiruation : http://www.centos.org/docs/5/html/Deployment_Guide-en-US/ch-kerberos.html http://www.redhat.com/docs/manuals/dir-server/8.1/install/index.html Server : CentOS 5.4 with Kerberos and Directory Server installed Client : CentOS 5.4 I use putty to connect to the client,

Hi List, optimizing the configuration on one of our servers (which was hit by a brute force attack on dovecot) showed an odd behavior. The short story: On one of our servers an attacker did a brute force attack on dovecot (pop3). Since the attacker closed and reopened the connection after every user/password combination the logs showed many lines like this: dovecot: pop3-login: Aborted

On Wed, 12 Jun 2024 09:00:47 +0200 Christian Naumer via samba <samba at lists.samba.org> wrote: > Am 11.06.24 um 19:37 schrieb Luis Peromarta via samba: > > Correct, and I have done so and explained extensively at the > > beginning to this thread. > > > > Question is: > > > > Should we stop telling people to provision with idmap_ldb:use > >

I've setup a portable system (ubuntu 16.04) joined to my AD domain, that in their primary network works as expected. But in this 'COVID time', the portable start to roam around, and users say me that, suddenly after some days of use, get incredibly sloooowww... after that users reboot, and cannot get back in, login refused. I've setup a VPN, but clearly if users cannot login

I noticed that my server has a lot ca. 1000x auth failure from different alocated in China / Romania and Netherlands per day since 3 days It looks to me like somebody was trying to get into server by guessing my password by brute force. what would be the best to stop this attack and how? the server running apache mysql and ftp PORT STATE SERVICE 21/tcp open ftp 80/tcp open http 443/tcp

Had two nameservers crash in the last few hours... This 'never' happens! On the console was sent an invalid ICMP type 3, code 3 error to a broadcast: 255.255.255.255 on eth0 sent an invalid ICMP type 3, code 3 error to a broadcast: 255.255.254.255 on eth0 with the IP address of the offender? in front of that line. Any ideas? Best, John Hinton

So I have this centos 5.10 box which authenticates network users against ldap(authorizing)+kerberos(authentication). And I now would like to have sudo be able to allow admins (netgroup chinbeards) to sudo about. I am not using sssd though (yet). Here is the output of me trying sudo (debug on): [raub at centos5-x64 ~]$ sudo pwd LDAP Config Summary =================== uri

I have the winbind login working on FC5 but now logins to local accounts cannot authenticate. My config files are here: http://www.pigeonnier.org/nsswitch.conf http://www.pigeonnier.org/pam.d/ http://www.pigeonnier.org/krb.conf Again, if I try to ssh in as a user that exists only as a local account on the remote host, I am rejected. User msh is -not- a AD account and only exists on the FC5

I've configured dovecot to authenticate against a Fedora Directory Server. The mail server on which dovecot is installed has the nss_ldap and pam_ldap packages installed, and /etc/dovecot.conf has the following two lines: auth_userdb = ldap /etc/dovecot-ldap.conf auth_passdb = pam In other words, I want dovecot to use LDAP to access the user database, but PAM for authentication. This part is

Ive recently installed three servers with RHEL5u5. After some messing on the original, I got samba working with ADS authentication. I then went and got it working so that users could log in using their domain name & password to the box. I got this working with both no restriction, and ADS group restriction. I have left it on no restriction wheil I get these systems up and running. I then

Hello, (I'm reposting this after my first attempt about 25 minutes ago has not come through to me. I am leaving out the looooooong debug log dump, in case the listserv didn't like the massive content, but it will be provided upon request.) I have a RHEL 6.5 server that was configured to use Samba 3.6.9-167 to authenticate against a Windows 2008 R2 Active Directory domain. The

Hello, I am having a small issue with LDAP, and I hope someone here might be able to provide a few tips. I am unable to authenticate as user 'testuser' on server 'storage' and the following errors appear in /var/log/messages on server 'storage' Sep 19 16:56:17 storage sshd(pam_unix)[3124]: check pass; user unknown Sep 19 16:56:17 storage sshd(pam_unix)[3124]:

Hi, I?ve posted this before but no one was able to help. I can?t figure out what they are trying to do, and if I should be concerned. I am running dovecot version 0.99.14 on Fedora Core 4. It appears that my dovecot server is under attack. This morning in my system e-mail I saw this: dovecot: Authentication Failures: rhost= : 23431 Time(s)

Hello All, I'm trying to set up linux ssh/shell authentication on a CentOS_6.2 server running smbd version 3.5.10-114 using winbind/smb/pam. We've done this successfully using the tdb backend but wanted users to get the same UID/GID on every machine. Switched to rid for the backend but users still got a foreign number for UID and their default group was always Domain Users. So I'm

Tried single quotes on Domain Admins in the pam.d file as well as a backslash on the space with no effect. I've found several references that just say "no spaces in group names." Is there really no way to do this? Also, most references I find to using these lines in pam.d say that "sufficient" should work, but I'm finding that users in the named group can then log in

I've been trying for weeks to get winbind working with RedHat Linux 8.0. I've got everything setup per the winbind docs on http://www.samba.org/samba/docs/Samba-HOWTO-Collection.html#WINBIND. I've successfully joined my NT4 domain with smbpasswd -j DOMAIN -r PDC -U Administrator. Running wbinfo -u returns my domain user list, as well as wbinfo -g returning my domain groups. getent

On 05/11/2015 10:06 AM, Ulrich Hiller wrote: > Hmmm...., i have made now a complete new install but the problem > persists: ldap authentication works, but the host attribute is ignored. Hate to say that we're running out of options. I had a CentOS 7 system similar to yours, with LDAP authentication. I added three lines to sssd.conf (for access provider, etc), restarted sssd, and

I have quite a few entries in /var/log/messages for connection attempts. Is there anything other than ignoring them I can do? Example is below. Aug 21 15:48:19 machine sshd(pam_unix)[17903]: check pass; user unknown Aug 21 15:48:19 machine sshd(pam_unix)[17903]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=wsip-24-234-149-156.lv.lv.cox.net THanks, Jerry

Uhum, i tested with ssh:  ssh XXX at FILESERVER  journalctl -f Jan 16 18:28:42 HOSTNAME  sshd[2250]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=IP-SOURCE  user=XXXXX Jan 16 18:28:43 HOSTNAME  sshd[2250]: Failed password for XXXX from IP-SOURCE  port 39896 ssh2 Regards; On 16-01-2018 18:25, Rowland Penny via samba wrote: > On Tue, 16 Jan