Questions tagged [tacacs+]

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Can't authorise commands via tacacs+ server executed in shell by ssh

I've setup a tacacs+ server and a PAM tacacs client from here- https://github.com/kravietz/pam_tacplus/tree/main. When user ssh into the tacacs client machine, I want authentication from tacacs+ ...
Faisal Alam's user avatar
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1 answer
352 views

PAM in Linux: any way to skip local auth if remote/external auth DB returns a negative response?

Dear fellow system tinkerers, an admin friend has asked me the following question: On a number of network elements and servers, he's using remote authentication against a TACACS+ server. On some such ...
frr's user avatar
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1 answer
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Server 2016 Tacacs.net install throwing "Error in Processing response" and need it to be up today.

I've been struggling a few days with this. I have a brand new server that I install tacacs.net on and I can't get it to work. I followed the quickstart guide and opened port 49. I'm thinking either ...
Douglas Rios's user avatar
1 vote
1 answer
3k views

Tacacs+ with PAM two-factor Google authentication?

I'm working on a tacacs+ server for my campus network, and I have been wondering how I could set up a tacacs+ server to communicate to PAM running google's two-factor authentication. I've done quite a ...
Disco King's user avatar
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0 answers
615 views

Authenticating any Linux distro with Tacacs and Active Directory

I have a set-up in my organisation where in, login to all network devices (Cisco, Juniper & ....) are authenticated using Windows AD and Cisco tacacs server. User's are pushed into AD via separate ...
Pravin's user avatar
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1 vote
1 answer
2k views

TACACS+ configuration: how to receive priv-lvl value?

I need to configure TACACS+ server to know if the given user is authenticated* and what is his priv-lvl. As a client I'm using tactest (tacacs.net) and TACACS+ Client Java Library (AXL). I tried with ...
tomekceszke's user avatar
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1 answer
859 views

Does "aaa accounting commands" not support radius?

When I issue this command: aaa accounting commands 15 default start-stop group myradiusgroup I get this error: %AAAA-4-SERVNOTACPLUS: The server-group "myradiusgroup" is not a tacacs+ server group. ...
red888's user avatar
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2k views

tacacs+ for Linux authentication/authorization using pam_tacplus

I am using TACACS+ to authenticate Linux users using pam_tacplus.so PAM module and it works without issues. I have modified the pam_tacplus module to meet some of my custom requirements. I know by ...
chandank's user avatar
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1 answer
2k views

Linux TACACS+ authorization

I'd like to know to to authorize (only allow a set of commands) users on Linux console (bash). I'm so far able to authenticate ssh users over TACACS+ but authorization is not working. This is my ...
Ignacio Verona's user avatar
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Network device failing to access groups from Active Directory

Occurs only for only 1 user , when TACACS+ tries to authenticate and retreive groups it fails, according to logs authentication is a success but fails when retreiving groups with error, "24027 Groups ...
Darktux's user avatar
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Linux TACACS+ auth for SSH but allow users to use public key auth

we have running tacacs environment for centralised login to our routers, firewalls etc and even most of our linux boxes to ssh what we would like to do is allow users to authenticate to SSH via ...
anthonysomerset's user avatar
2 votes
2 answers
2k views

How does Arista EOS and Cisco IOS encrypt tacacs+ encyption keys?

We're using tacacs for AAA on our network devices, and I'm interested/curious in how our devices are encrypting the passwords device side. Following the Arista EOS manual, page 139, I'm running: ...
David Mah's user avatar
  • 158
0 votes
1 answer
1k views

TACACS+ ACS 5.3 Err 'ACS: Resource not found or internal server error No information'

Has anyone experienced this issue before? Running: Cisco TACACS+ ACS 5.3 When I log in I see this displayed on the right pane. I still have the navigation links on the the left pane and able to ...
onxx's user avatar
  • 200
1 vote
4 answers
6k views

TACACS+ - Cisco Router - Failover to local database not operating as it should

I have TACACS+ working and now I am trying to set it up so that it will failover locally if the TACACS+ server is unavailable. My goal is for it to check the TACACS server first, then failover if it ...
Lance's user avatar
  • 281
0 votes
2 answers
940 views

F5 authentication using kerberos keytab

Our network gear use tacplus for authentication and authorization. tac itself authenticates using kerberos. For one of the projects we need automated login to a F5 device using a script. Does anyone ...
vs_sa's user avatar
  • 61
8 votes
1 answer
34k views

Authenticate Linux sshd with TACACS+ (Cisco ACS)

Our network engineering team uses multiple linux servers for syslog collection, configuration backups, tftp, etc... We want to use TACACS+ on a Cisco ACS machine as our central authentication server ...
Mike Pennington's user avatar
0 votes
1 answer
876 views

Enabling command logging on a Cisco MDS Switch

We are able to send all commands entered by admins to syslog on our Pix and ASA devices but are having trouble finding the correct commands or log levels to do the same for our Cisco MDS 9xxx switches....
stephanbuys's user avatar
0 votes
1 answer
139 views

Does anybody have any good material on TacPlus?

Does anybody know, either good websites or books which can help us setup a Tacacs+ (tacplus) server? Any help would be appreciated. Thanks AB
Beauchamp's user avatar
2 votes
1 answer
1k views

Passwordless Kerberos management of Cisco devices

Does anyone have any experience of using Kerberos as an authentication mechanism for managing a Cisco IOS based network? This article seems to indicate it's possible, but my Kerberos knowledge is ...
Murali Suriar's user avatar
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1 answer
3k views

IOS: tie SNMP v3 credentials to TACACS or RADIUS?

On Cisco IOS, I'm looking at moving from SNMP v1/2 to v3, which means separate user/password credentials instead of just community strings. Is it possible to have those user credentials pulled from, ...
Geoff's user avatar
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