Cisco Acs 5.1 Clock Skew Error
Secure Access Control SystemConfigureConfiguration Examples and TechNotes ACS 5.x and later: Integration with Microsoft Active Directory Configuration Example Download Print Available Languages Download Options PDF (165.6 KB) View with Adobe Reader on a variety of devices Updated:Jun 19, 2012 Document ID:113571 Contents Introduction Prerequisites Requirements Components Used Conventions Background Information Configuration Configure ACS 5.x Application Deployment Engine (ADE-OS) Join ACS 5.x to AD Configure Access Service Verify Related Information Introduction This document provides a sample configuration to integrate Microsoft Active Directory with Cisco Secure Access Control System (ACS) 5.x and later. ACS uses Microsoft Active Directory (AD) as an external identity store to store resources such as users, machines, groups, and attributes. ACS authenticates these resources against AD. Prerequisites Requirements Ensure that you meet these requirements before you attempt this configuration: Windows Active Directory Domain to be used needs to be fully configured and operational. Use Microsoft Windows Server 2003 Domain, Microsoft Windows Server 2008 Domain or Microsoft Windows Server 2008 R2 Domain as these are supported by ACS 5.x. Note:Integration of Microsoft Windows Server 2008 R2 Domain with ACS is supported from ACS 5.2 and later. Components Used The information in this document is based on these software and hardware versions: Cisco Secure ACS 5.3 Microsoft Windows Server 2003 Domain The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command. Conventions Refer to the Cisco Technical Tips Conventions for more information on document conventions. Background Information Windows Active Directory provides many features that are used in the daily network usage. The integration of ACS 5.x with AD
for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > Cisco ACS server clock skew error Want to Advertise Here? Solved Cisco ACS server clock skew error Posted on 2011-10-05 Network Operations 1 Verified Solution 4 Comments 3,382 Views Last Modified: 2012-05-12 Hello all, http://www.cisco.com/c/en/us/support/docs/security/secure-access-control-system/113571-acs5-ad-int-config-00.html i have a Cisco ACS server configured in a virtual environment - V-Sphere. The ACS is used for authenticating wireless and VPN users RADIUS. Also it is used for for authenticating netork admins logging in to routers and switches etc... TACACS is used for this. The ACS talks to Active directory to authenticate the users. Every so often, maybe every 3 months, people are not able https://www.experts-exchange.com/questions/27381023/Cisco-ACS-server-clock-skew-error.html to authenticate. I log on to the ACS GUI page, and perform a connectivity test to AD. It fails and says there is a clock skew error. i then have to manually SSH to the ACS, change the clock and then restart. the funny thing here is, the clock on ACS has to be 1hour and 10 minutes behind the domain controller for the link between ACS and AD to be successfull. If i set the correct time on the ACS then the connection actually fails - clock skew error. does anybody know a fix for this? maybe someone has seen this before? its even more frustrating because, even though all my NAS devices such as wireless access points, VPN concentrator etc... are configured to use an alternative server for user authentication, this other server is never attempted becase the wireless access point for instance can still see the ACS. Therefore the secondary authentication server is never attempted, and the user just fails authentication based on the clock skew error. a quick fix is to power off the ACS, and then the secondary auth server is used. But this is obviously just a workaround and wou
to Active Directory Nov. 05 Uncategorized no comments You may Get clock skew error while connecting from Cisco Access Control Server (ACS 5.x) to Microsoft Active Directory selecting http://www.networkpcworld.com/clock-skew-error-while-connecting-cisco-acs-5-x-to-active-directory/ it as an External Database. The Clock time should be the same http://website-box.net/se-keyword/clock+skew+error on both Cisco ACS server and Microsoft Active Directory Server to avoid this error. You can configure the ACS Server with three command so that the Clock is matching with the Active Directory Server. Command are; 1. clock set Nov 04 05:05:05 2013 2. clock timezone Asia/Karachi 3. ntp server cisco acs 10.0.0.1 Once set these command Save the configuration in ACS server, reload the server and try connecting external database again. Tags: Active Directory Domain Services, Cisco ACS, Clock Skew Error, Microsoft ← Radius-Server Command Not Available in Cisco Cisco IOS different names with different Features → Leave a Reply Cancel replyYou must be logged in to post a comment. Recent Posts How to configure timezone for GrayLog2 on Ubuntu Configure DHCP and DNS Roles on TMG Server Cisco IOS different names with different Features Clock Skew Error While Connecting Cisco ACS 5.x to Active Directory Radius-Server Command Not Available in Cisco TagsActive Directory Domain Services Antivirus ASA ASDM CCIE Security CCNP Cisco Cisco ACS Client CNA convert Data Backup Data Recovery difference Download EIGRP Erase Data Permanantly Files Firefox Free Download Free Software gns3 Hard Disk IE9 Intel iPAD Laptop Layer 2 Microsoft PC pdf PIX Router Server Spanning-Tree Switch Telnet TMG 2010 VLAN VMWare VTP Windows Windows 7 Windows 8 Windows XP About me Networkpcworld Working on Cisco and Microsoft Products and Sharing good stuff with you guys... Recent Posts How to configure timezone for GrayLog2 on Ubuntu Configure DHCP and DNS Roles on TMG Server Cisco IOS different names with different Features Clock Skew Error While Connecting Cisco ACS 5.x to Active Directory Radius-Server Command Not Available in Cisco networkPCworld Powered by WordPress and theme by gazpo.com. Close for now. Never show again. Subscribe By Email for Updates.
js Tool Create Meta PHP Unserialize Json Decode Php Doc Hash Function Wiki Web Color Name Css Cursor Google Params Tools JSON Formatter String Counter Form Submit Binary Convert MD5 Generator Css Sprite Cmd Repeat Url Parse WEBSITE-BOX >SE Keyword >clock skew error RANK KEYWORD WEB TITLE & WEB URL TIME 1 - 1 clock skew error ACS 5.2 - Clock Skew Error | AAA, Identity and NAC | Cisco Support ... supportforums.cisco.com/discussion/11579526/acs-52-clock-skew-error supportforums.cisco.com 2014-12-05 21:05:07 1 - 2 clock skew error ACS 5.0 clock skew | AAA, Identity and NAC | Cisco Support ... supportforums.cisco.com/discussion/10904856/acs-50-clock-skew supportforums.cisco.com 2014-12-05 21:05:07 1 - 3 clock skew error How to solve error: "Clock skew detected"? - Stack Overflow stackoverflow.com/questions/18235654/how-to-solve-error-clock-skew-detected stackoverflow.com 2014-12-05 21:05:07 1 - 4 clock skew error Clock Skew Error While Connecting Cisco ACS 5.x to Active ... www.networkpcworld.com/clock-skew-error-while-connecting-cisco-acs-5-x-to-active-directory/ www.networkpcworld.com 2014-12-05 21:05:07 1 - 5 clock skew error Authentication Errors are Caused by Unsynchronized Clocks technet.microsoft.com/en-us/library/cc780011%28v=ws.10%29.aspx technet.microsoft.com 2014-12-05 21:05:07 1 - 6 clock skew error Clock skew - Wikipedia, the free encyclopedia en.wikipedia.org/wiki/Clock_skew en.wikipedia.org 2014-12-05 21:05:07 1 - 7 clock skew error Cisco ACS server clock skew error - Experts Exchange www.experts-exchange.com/Networking/Network_Management/Network_Operations/Q_27381023.html www.experts-exchange.com 2014-12-05 21:05:07 1 - 8 clock skew error Cisco ACS (clock skew error) - Spiceworks community.spiceworks.com/topic/579625-cisco-acs-clock-skew-error community.spiceworks.com 2014-12-05 21:05:07 1 - 9 clock skew error Kerberos Clock Skew Error on Mac OS - IT@Cornell www2.cit.cornell.edu/kerberos/helpmac/timesync.html www2.cit.cornell.edu 2014-12-05 21:05:07 1 - 10 clock skew error ACS 5.1 integration with Active Directory [Part II] | FirstDigest www.firstdigest.com/2011/05/acs-5-1-with-active-directory-integration-part-ii/ www.firstdigest.com 2014-12-05 21:05:07 2 - 1 clock skew error Clock Skew Detected my.vertica.com/docs/4.1/HTML/Master/3904.htm my.vertica.com 2014-12-05 21:05:07 2 - 2 clock skew error Error: clock skew too great - Trend Micro docs.trendmicro.com/all/ent/iwsva/v5.5/en-us/iwsva_5.5_olh/error__clock_skew_too_great.htm docs.trendmicro.com 2014-12-05 21:05:07 2 - 3 clock skew error KB18177-Unable to log on to BlackBerry Administration ... btsc.webapps.blackberry.com/btsc/kb18177 btsc.webapps.blackberry.com 2014-12-05 21