Troubleshooting tips for citrix adc netscaler jacob rutski. If system files are missing or corrupted, the system file checker will repair them. In this blog i will go through some netscaler clishell commands i use for troubleshooting netscaler issues and commands i use to test and gather information about the configuration on the netscaler first of all download and open up putty and connect to the nsip using the nsroot credentials show commands. Below can be useful if youre troubleshooting a particular issue and want to see if netscaler is logging anything relevant to ns. A netscaler appliance has both a command line interface cli and a graphical user interface gui. The list of cmds i have saved up is quite big now, and i figured it would be helpful for other netscaler admins to know about some of these. Controlup presents aggregated, logical views of complex environments, and gives you powerful troubleshooting tools for precise and rapid interventions when action is needed. Apr 23, 2015 as always, use your favorite ssh tool to connect to netscaler and run the following commands one after the other. Netscaler gateway is vastly used remote access feature of netscaler. About 10 times a day, there is a sigle ping missed to our datacenter followed by a ping with high latency around 500 ms.
Citrix netscaler 10 essentials and networking the objective of the citrix netscaler 10 essentials and networking course is to provide the foundational concepts and advanced skills necessary to implement, configure, secure, monitor, optimize, and troubleshoot a citrix netscaler system from within a networking framework. Oct 11, 2012 netscaler nsconmsg k varnslognewnslog remember to use k not k in the command a small k is used to write logs not read this will read archived logs. Use the tab key to auto complete a command or filename. These commands are useful when troubleshooting issues with netscaler gateway, rewrite and responder policies. With respect to troubleshooting, identifying the firewall blocks using netscaler output commands and system counters, also covered performance issues when enabling appfirewall and how to troubleshoot by creating custom policies. Perform the authentication process that requires troubleshooting, such as a user logon attempt. Nov 18, 2019 over the last couple of years of working with the citrix netscaler product ive been noting down netscaler cmds that ive found useful in various scenarios. Rightclick on command prompt and choose run as administrator. Please be careful to use capital k this is for reading the logs and a lower case k is for writing to the netscaler event files. Citrix has released new software to help users of its netscaler application delivery controller more easily troubleshoot application performance problems in complex network and data center. If the appliance is installed with netscaler software.
I understand that you are able to ping the ldap server ip address seems the l3 connectivity is fine. Use the up or down arrow keys to use previous or next commands. Top 5 directaccess troubleshooting powershell commands. Collect the nf file after saving the configuration from netscaler cli, run save configuration. Netscaler is a complex device, and lets face it a lot of things can go wrong. In this blog i will go through some netscaler clishell commands i use for troubleshooting netscaler issues and commands i use to test and gather information about the configuration on the netscaler first of all download and open up putty and connect to the nsip using the nsroot credentials show commands are useful for. When in the shell, the following tips will help simplify typing and navigation.
Indepth troubleshooting on netscaler using command line tools. An ebook reader can be a software application for use on a computer. The nsconmsg cheat sheet provides you with the most commonly used commands for your reference. The goal of this session is to demystify some useful command line tools and provide a tactical approach to troubleshooting of netscaler. Advanced tools and techniques for troubleshooting netscaler. First of all a little about the netscaler developer vpx. Citrix outfits netscaler with troubleshooting tools. To get started, just click the chat button in the upperright corner of the dynatrace menu bar to contact a dynatrace one product specialist. Dec 17, 2015 netscaler nsconmsg k varnslognewnslog d event. If the problems arent all resolved, try running the troubleshooter again to check for additional errors.
You can for example run the following command for the newnslog files to get information about the states of all your created objects like vservers or services. Set packet size to 0, and add expression filer if necessary, click ok. Quick packet capturingtracing commands on the citrix adc netscaler nstrace is a netscaler script that will help you do a packet capture and is the gold standard for troubleshooting network traffic on a netscaler. Troubleshooting netscaler tirumalaraju, raghu varma on. Citrix provides a full range of technical documentation for our products. To get to the shell, type shell at the netscaler cli. Duo security supports inline selfservice enrollment and duo prompt when logging on to the netscaler gateway using a web browser. May 22, 2014 as a netscaler administrator, you will need to understand how the netscaler interacts with the network to ensure an optimally running environment for your applications. At the moment im wasting my time setting up a personal lab environment on microsoft windows server 2012 r2 hyperv ofcourse. With my windows 10 client i dont recnognize any kind of issue but some of our users with windows 7 have different issue. In the netscaler configuration gui, on the left, expand system and click licenses.
Execute the netstat command alone to show a relatively simple list of all active tcp connections which, for each one, will show the local ip address your computer, the foreign ip address the other computer or network device, along with their respective port numbers, as well as the tcp state. Citrix netscaler has a rich webbased management suite of tools available. Citrix adc commands to find the policy hits for citrix. Of course, administrators have long had command line tools, such as ping and traceroute. However, openssl is very helpful at converting certificates between formats, so lets try. A conversion must be done in order to bring the certificate and private key into a format that citrix netscaler will understand. To dig deep troubleshooting netscaler, sometimes its best to roll up your sleeves and dig out the command line. Advanced monitoring and management tasks such as configuring and implementing netscaler insight center, command center, and netscaler web logging are also covered. If a failure occurs in a netscaler cluster, the first step in troubleshooting is to get information on the cluster instance and the cluster nodes by running the show cluster instance and show cluster node commands respectively. You can also use the common unix command top to view utilization. In addition to the above resources, the following tools expedite troubleshooting.
This release notes document describes the enhancements and changes, lists the issues that are fixed, and specifies the issues that exist, for the netscaler release 12. It can also be used to diagnose problems with the time service. In this example, the environment consists of a netscaler setup that uses netscaler gateway in ica proxy mode basic mode, load balancing and global server load balancing, storefront servers, active directory servers, xenapp data collectors and worker servers, xendesktop delivery controllers and machines. When we look at the connection at the customers site, the are no clear signs of failure. Or see fix windows update errors and follow the troubleshooting steps. Over the last couple of years of working with the citrix netscaler product ive been noting down netscaler cmds that ive found useful in various scenarios. This is because by default the nsip is where telnet is being established from. For example, administrators can compare the windows configurations of a working and nonworking server to quickly isolate the element causing an application to fail. There are many a times you may want to look at the netscaler event logs and the below command should let you do just that. For initial access, all appliances ship with the default netscaler ip address nsip of 192.
Connect to netscaler gateway command line interface with a secure shell ssh client such as putty. Troubleshooting methodology for netscaler, storefront with xenapp andor xendesktop. Citrix recommends upgrading by one release at a time. Single sign on for office 365 with netscaler citrix. The following tables describe the parameters that are used with w32tm. Duo integrates with your citrix gateway to add twofactor authentication to vpn logins.
Windows time service tools and settings microsoft docs. Native powershell commands in windows 10 make directaccess troubleshooting much easier than older operating systems like windows 7. This nsconmsg is a tool which operates on netscaler newnslog and most widely used tool for troubleshooting netscaler issue. Mar 27, 2014 citrix netscaler has a rich webbased management suite of tools available. This article contains information about the nsconmsg commands executed from the freebsd unix command line interface to find the policy hits for the citrix gateway policy types such as authentication and session. Ive collected numerous citrix adc netscaler troubleshooting tips and commands over the years, so here they are.
Also you can can use the pipe and grep commands to get specific information that you want to see. Data collection procedure to troubleshoot netscaler related issues. If the respective packets are not seen then the problem is external to the device. In case of a high availability pair, the configuration files from both appliances. I find that in many cases netscaler support falls in the citrix xenappxendesktop teams hands as they inherit it from the initial xenapp install and netscaler has that. Ive recently worked with a client to troubleshoot radius authentication issues between their cisco nexus as a radius client and their microsoft windows 2012 r2 nps network policy server server as the radius server and after determining the issue, the client asked me why i never wrote a blog post on the steps that i took to troubleshoot issues like these so this post serves as a way to. Either when setting it up or someone does something weird with the config and saves it. Run the following command to change to the tmp directory. Run the following command to switch to the shell prompt. Troubleshooting citrixpublished resources configuration in vmware identity manager. Problems authenticating netscaler unified gateway with. How to troubleshoot radius or tacacs authentication issues on. When looking in storefont, xendesktop controllers or the netscaler, there are no signs of failure or errors. For more windows update troubleshooting info, see troubleshoot problems updating windows 10.
Troubleshooting authentication issues through netscaler or. Id always thought to write an article on this specific topic, but it actually never came to writing, thats gonna change today with citrix solutions it was already possible to connect to your desktop from everywhere around the. One of my missions was to setup a netscaler adc developer edition. Windows includes a system file checker tool that scans all the windows system files and looks for problems. For best results, use the following resources to troubleshoot an issue related to installing, upgrading, or downgrading a citrix netscaler.
One of them was the release of the enlightened data transport protocol. An ebook reader can be a software application for use on a. If you need to troubleshoot the kerberos auth when you or another user. Feb 11, 2016 if you ever get authentication failures when trying to log on to netscaler gateway with credentials you know are correct then start logging the authentication attempts on netscaler using bug to find out what is going wrong. You can export a certificate from windows and import it to netscaler. Netscaler in a private cloud managed by microsoft windows azure pack and cisco aci. Learn how to monitor citrix netscaler devices using the dynatrace activegate extension for citrix netscaler.
The gui includes a configuration utility for configuring the appliance and a statistical utility, called dashboard. In the examples above, we asked openssl not to create an output certificate using the nout command line argument. These commands must be run from freebsd shell on a netscaler. How to troubleshoot port connectivity from netscaler. Radius and tacacs is a little trickier since you have something in the middle to troubleshoot but the steps above should give you enough to tell you if the problem resides on the netscaler or on the authentication server. In current windows 10 builds, well automatically fix certain critical problems on your windows device to keep it running smoothly. I had however some strange problems setting up, so it looked like a good idea to share them. Go to varnslog and do a ls l to show the timestamp information. Troubleshooting radius authentication issues between. Log on to your storefront server and check netscaler gateway settings. For example, with one powershell command an administrator can quickly determine if a directaccess client has received the directaccess client settings policy. To use this tool, open a command prompt window as administrator and run the sfc scannow command. Such commands might not be available across releases. Netscaler commands to find the policy hits for netscaler.
For some reason, netscaler is unable to reach the ldap server on port 389. If you are not able to find the issue by using the above two approaches, you can use one of the following. In addition, powershell can be used to view the status of the connection and retrieve. Containing ramblings about cloud, enduser computing, software defined datacenter. Manual configuration by using the command line interface. On the windows server that has the certificate, run mmc. However, windows certificates cant be imported on netscaler in their native pfx format and must first be converted to pem as detailed below. If you were wondering, yes, there is an outform command as well, and on that note. Run the following command to start the debugging process. Netscaler troubleshooting using command line c4rm0. Well also recommend troubleshooting for other problems that arent critical to normal windows operation but might impact your experience. Commands reported here may not have prevented local checks from running but may have caused the plugin associated with each command to fail to produce the expected output.
Hi guys, how do you troubleshoot network connectivity, like tcpudp port probing from the netscaler. Writes the nf file cli authentication controls logging for the newnslog. Citrix netscaler is an apache type system that uses pemx509 certificate formates for encryption and is not compatible with pfxpkcs12 keypairs. If a vserver goes down or up you will see it with this command. This session will cover advanced techniques in troubleshooting the citrix netscaler. Configure the enlightened data transport udp protocol edt. Show amount of ram that netscaler integrated caching is currently using. So therefore i wrote this basic troubleshooting guide, hopefully it will be some help for.
Troubleshooting netscaler 1, tirumalaraju, raghu varma, ebook. Citrix netscaler command reference guide support pdf. How to troubleshoot radius or tacacs authentication issues. For info on upgrading to windows 10, see upgrade to windows 10. If you got stuck within the first portion of the connection process, your issue is not directly related to netscaler, you dont even need to log on to netscaler. Keep your device running smoothly with recommended.
How to move certificate from windows to citrix netscaler. Troubleshooting netscaler 1, tirumalaraju, raghu varma. Jan 17, 2019 the nsconmsg commands are helpful in identifying the real time hits on the policies and for validating whether the expression used for these policies are correct or not. Troubleshooting methodology for netscaler, storefront with. The wireshark application customized for the netscaler appliance trace files. In order to successfully complete this course, learners will have access to handson exercises within a virtual lab environment. If youre trying to troubleshoot a citrix netscaler access gateway and attempt to telnet from the netscaler via a putty session to an staxenapp server youll notice that more than likely nothing will connect and it will eventually timeout. For citrix receiver connections, duo security supports passcodes, phone, and push authentication. This can be used to troubleshoot persistency related issues.
To troubleshoot authentication with bug module, complete the following procedure. If you have a license file, select upload license files from a local computer and then click browse. Useful netscaler cli commands, particularly for diagnostics. Specify whether the netscaler gateway plugin should disconnect all preexisting connections, such as the connections existing before the user logged on to netscaler gateway, and prevent new incoming connections on the netscaler gateway plugin for windows and mac when the user is connected to netscaler gateway and split tunneling is disabled. Trouble shooting citrix netscaler gateway connection issues. The wireshark application customized for the netscaler trace files. Indepth troubleshooting on netscaler using command line tools may 28, 2014 by lal mohan indepth troubleshooting on netscaler using command line tools from david mcgeough. Oct 14, 2018 citrix did some great innovations on their product line throughout last the 2 years. In this blog i will go through some netscaler clishell commands i use for troubleshooting netscaler issues and commands i use to test and gather information.
I know you can use telnet, but thats only for tcp ports, and how can you assure that the source ip is either the nsip or mip when probing. Hello together, i have upgrade our citrix netscaler vpx from 11. Open a ticket online for technical assistance with troubleshooting, breakfix requests, and other product issues. Ldap troubleshooting is easier since the netscaler can give you a lot more detail as to what is failing. This site contains command references, api references, sdk documentation and libraries of. This syntax will also show hits for citrix adc feature policy types including rewrite, responder, content switching, and acls. To view a short description of each document, hover your cursor over the title.
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