Lab 36.1 - PAM module
I use Ubuntu and try to follow the steps described in the lab.
I unfortunately cannot make use of PAM.
I inserted the lines that were given
account required pam_tally2.so
into the /etc/pam.d/sshd file, but after three failed attempts I can login via SSH successfully. The command sudo pam_tally2
does not display anything neither.
Maybe I need to put the two lines in a proper place in the file (if the order does matter)?
Can anyone help me with that? Any advices?
Comments
-
On CentOS 7 it just works as described in the lab.
I think I solved it on Ubuntu. You might need to adapt the /etc/ssh/sshd_config file.
First of all you should activate PAM for SSH:UsePAM yes
Then you should make sure the following lines are as follows (I don't understand exactly why or what those lines do exactly, but it works that way):ChallengeResponseAuthentication yes PasswordAuthentication no
Once this is done simply follow the lab instructions and it should work as expected.0 -
Hi Elyas,
I'm glad that you were able to solve the issue. It's common to find some differences between distros, so be sure that you will find more within time.
You can find more information about PAM here:
http://www.linux-pam.org/Linux-PAM-html/Linux-PAM_SAG.html
Regards,
Luis.
0 -
It doesn't solve it here.
I'm using Ubuntu 14.04 and have the same problem.
I've added those lines, but nothing happens.
pam_tally2 doesn't report any login Failures (counter is always at 0).
UsePAM yes is already uncommented in /etc/ssh/sshd_config (very last line)
I also tried restarting ssh service - no help there.
I tried loggging in console (tty3 - i always use 1 and 2) - nothing.
Any ideas?
0 -
Hi, I'm going to do a test on Ubuntu 14.04 and I'll let you know what I found.
Regards,
Luis.
0 -
ubuntu 14.04, openssh-server, confirmed not working
editing options doesn't work
0 -
Hi
Hope you are well.
Do we have instruction updates on this. Need to resolve this for the labs.
Thanks
AJ
0 -
Hi,
I did the test on Ubuntu 14.04 and in fact it didn't work. I'll see if I can troubleshoot it. And as reported, pam_tally2 doesn't report any login issues.
Regards,
Luis.
0 -
Hi,
I got it to work with the following _in the begining of the configuration file_ :
auth required pam_tally2.so deny=3 onerr=fail
@include common-auth
account required pam_tally2.so
[...]
Regards,
Luis.
0 -
While pam_tally2 -u username reports the failed logins, it doesn't actually lock the account for me. Are you sure the configuration you used locks the account after 3 failed attempts?
Thanks
Harry
0 -
The above setting will report correctly the failed logins. However, it doesn't really lock the account. Are there any other files to be edited in addition to the sshd file?
Thanks.
Harry
0 -
Hi,
Yes, it locked the account for me. In fact I was unable to connect by ssh and I received an error message.
Regards,
Luis.
0
Categories
- All Categories
- 50 LFX Mentorship
- 103 LFX Mentorship: Linux Kernel
- 575 Linux Foundation IT Professional Programs
- 304 Cloud Engineer IT Professional Program
- 125 Advanced Cloud Engineer IT Professional Program
- 53 DevOps Engineer IT Professional Program
- 60 Cloud Native Developer IT Professional Program
- 5 Express Training Courses
- 5 Express Courses - Discussion Forum
- 2K Training Courses
- 19 LFC110 Class Forum
- 7 LFC131 Class Forum
- 27 LFD102 Class Forum
- 156 LFD103 Class Forum
- 20 LFD121 Class Forum
- 1 LFD137 Class Forum
- 61 LFD201 Class Forum
- 1 LFD210 Class Forum
- LFD210-CN Class Forum
- 1 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum
- LFD237 Class Forum
- 23 LFD254 Class Forum
- 611 LFD259 Class Forum
- 105 LFD272 Class Forum
- 1 LFD272-JP クラス フォーラム
- 1 LFD273 Class Forum
- 2 LFS145 Class Forum
- 24 LFS200 Class Forum
- 739 LFS201 Class Forum
- 1 LFS201-JP クラス フォーラム
- 10 LFS203 Class Forum
- 75 LFS207 Class Forum
- 300 LFS211 Class Forum
- 54 LFS216 Class Forum
- 47 LFS241 Class Forum
- 41 LFS242 Class Forum
- 37 LFS243 Class Forum
- 11 LFS244 Class Forum
- 34 LFS250 Class Forum
- 1 LFS250-JP クラス フォーラム
- LFS251 Class Forum
- 140 LFS253 Class Forum
- LFS254 Class Forum
- 1.1K LFS258 Class Forum
- 10 LFS258-JP クラス フォーラム
- 93 LFS260 Class Forum
- 132 LFS261 Class Forum
- 33 LFS262 Class Forum
- 80 LFS263 Class Forum
- 15 LFS264 Class Forum
- 11 LFS266 Class Forum
- 18 LFS267 Class Forum
- 17 LFS268 Class Forum
- 23 LFS269 Class Forum
- 203 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- LFS274 Class Forum
- LFS281 Class Forum
- 233 LFW211 Class Forum
- 172 LFW212 Class Forum
- 7 SKF100 Class Forum
- SKF200 Class Forum
- 902 Hardware
- 219 Drivers
- 74 I/O Devices
- 44 Monitors
- 115 Multimedia
- 209 Networking
- 101 Printers & Scanners
- 85 Storage
- 763 Linux Distributions
- 88 Debian
- 66 Fedora
- 15 Linux Mint
- 13 Mageia
- 24 openSUSE
- 142 Red Hat Enterprise
- 33 Slackware
- 13 SUSE Enterprise
- 357 Ubuntu
- 479 Linux System Administration
- 41 Cloud Computing
- 70 Command Line/Scripting
- Github systems admin projects
- 95 Linux Security
- 78 Network Management
- 108 System Management
- 49 Web Management
- 68 Mobile Computing
- 23 Android
- 30 Development
- 1.2K New to Linux
- 1.1K Getting Started with Linux
- 537 Off Topic
- 131 Introductions
- 217 Small Talk
- 21 Study Material
- 826 Programming and Development
- 278 Kernel Development
- 514 Software Development
- 928 Software
- 260 Applications
- 184 Command Line
- 3 Compiling/Installing
- 76 Games
- 316 Installation
- 62 All In Program
- 62 All In Forum
Upcoming Training
-
August 20, 2018
Kubernetes Administration (LFS458)
-
August 20, 2018
Linux System Administration (LFS301)
-
August 27, 2018
Open Source Virtualization (LFS462)
-
August 27, 2018
Linux Kernel Debugging and Security (LFD440)