Issue: Netscaler ADC 12.1 does not save the configuration. When clicked on the save icon in the browser, it prompts whether you want to save running configuration. Nothing happens when you click yes. From the putty session, when you run “save config” command, it outputs “ERROR:”. No error message is displayed. Solution: Login to your…
Have you ever tried to backup netscaler configuration and restore? Luckily, Citrix gave us the opportunity to create basic and full backups on netscaler. We can create backups for the software configuration on the netscaler and restore it when needed. In GUI, Goto Netscaler/System/Backup and Restore option. Enter a name for your backup and select…
On a weekend or on a non busy day in your environment, you might see netscaler displaying high cpu (more than 80%) on the hypervisor. If your hypervisor team reports this to you, dont worry. Nothing is wrong. The NetScaler packet processing engine is always “looking for work”, even when there is no work to…
During a high availability file synchronization operation, a set of files are copied from the primary appliance to the secondary appliance. The high availability setup is synchronized automatically at an interval of one minute or when you manually run the sync ha files command. The secondary appliance initiates the high availability synchronization. The rsync process…
High availability synchronization is the process by which configurations are kept identical between the appliances. It is not the process that runs individual commands on the secondary appliance after successful completion on the primary appliance, that is called Command Propagation and while the two are similar in function, they perform different functions. High availability synchronization…
A GSLB configuration consists of a group of GSLB entities on each appliance in the configuration. These entities include the following: GSLB Sites GSLB Services GSLB Virtual Servers Load Balancing or Content Switching Virtual Servers ADNS Services DNS VIPs GSLB Sites A typical GSLB setup consists of data centers, each of which has various network…
ICA Only: If you don’t have enough Citrix Gateway Universal licenses installed for all of your Gateway users, then we can use ICA Only option. This option disables SmartAccess and VPN features but does not require any additional licenses. Note: most Citrix ADC Editions come with built-in Gateway Universal Licenses. If we dont need smartaccess,…
NetScaler SmartControl: SmartControl allows administrators to define granular policies to configure and enforce user environment attributes for Citrix Virtual Apps and Desktops on Citrix Gateway. SmartControl allows administrators to manage these policies from a single location, rather than at each instance of these server types. SmartControl is implemented through ICA policies on Citrix Gateway. Each…
Photo by Thomas Jensen on Unsplash Connection multiplexing is a method of reusing connections to avoid the overhead on the server that comes with establishing new connections for each request. Connection multiplexing support in Citrix ADC ensures that server connections are efficiently reused, which results in dramatically reduced SSL/TLS load on back-end servers. Q: What is the connection…
What is GSLB? Citrix ADC appliances configured for GSLB provide disaster recovery and ensure continuous availability of applications by protecting against points of failure in a WAN. GSLB balances the load across data centers by directing client requests to the closest or best-performing data center, or to surviving data centers if there is an outage….