Getting Started with Citrix ADC
Deploy a Citrix ADC VPX instance
Install a Citrix ADC VPX instance on Microsoft Hyper-V servers
Install a Citrix ADC VPX instance on Linux-KVM platform
Prerequisites for Installing Citrix ADC VPX Virtual Appliances on Linux-KVM Platform
Provisioning the Citrix ADC Virtual Appliance by using OpenStack
Provisioning the Citrix ADC Virtual Appliance by using the Virtual Machine Manager
Configuring Citrix ADC Virtual Appliances to Use SR-IOV Network Interface
Configuring Citrix ADC Virtual Appliances to use PCI Passthrough Network Interface
Provisioning the Citrix ADC Virtual Appliance by using the virsh Program
Provisioning the Citrix ADC Virtual Appliance with SR-IOV, on OpenStack
Configuring a Citrix ADC VPX Instance on KVM to Use OVS DPDK-Based Host Interfaces
Deploy a Citrix ADC VPX instance on Microsoft Azure
Network architecture for Citrix ADC VPX instances on Microsoft Azure
Configure multiple IP addresses for a Citrix ADC VPX standalone instance
Configure a high-availability setup with multiple IP addresses and NICs
Configure a high-availability setup with multiple IP addresses and NICs by using PowerShell commands
Configure HA-INC nodes by using the Citrix high availability template with Azure ILB
Configure address pools (IIP) for a Citrix Gateway appliance
Upgrade and downgrade a Citrix ADC appliance
Solutions for Telecom Service Providers
Load Balance Control-Plane Traffic that is based on Diameter, SIP, and SMPP Protocols
Provide Subscriber Load Distribution Using GSLB Across Core-Networks of a Telecom Service Provider
Authentication, authorization, and auditing application traffic
Configuring authentication, authorization, and auditing policies
Configuring Authentication, authorization, and auditing with commonly used protocols
Use an on-premises Citrix Gateway as the identity provider for Citrix Cloud
Troubleshoot authentication issues in Citrix ADC and Citrix Gateway with aaad.debug module
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Persistence and persistent connections
Advanced load balancing settings
Gradually stepping up the load on a new service with virtual server–level slow start
Protect applications on protected servers against traffic surges
Retrieve location details from user IP address using geolocation database
Use source IP address of the client when connecting to the server
Set a limit on number of requests per connection to the server
Configure automatic state transition based on percentage health of bound services
Use case 2: Configure rule based persistence based on a name-value pair in a TCP byte stream
Use case 3: Configure load balancing in direct server return mode
Use case 6: Configure load balancing in DSR mode for IPv6 networks by using the TOS field
Use case 7: Configure load balancing in DSR mode by using IP Over IP
Use case 10: Load balancing of intrusion detection system servers
Use case 11: Isolating network traffic using listen policies
Use case 12: Configure Citrix Virtual Desktops for load balancing
Use case 13: Configure Citrix Virtual Apps for load balancing
Use case 14: ShareFile wizard for load balancing Citrix ShareFile
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Authentication and authorization
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Configuring a CloudBridge Connector Tunnel between two Datacenters
Configuring CloudBridge Connector between Datacenter and AWS Cloud
Configuring a CloudBridge Connector Tunnel Between a Datacenter and Azure Cloud
Configuring CloudBridge Connector Tunnel between Datacenter and SoftLayer Enterprise Cloud
Configuring a CloudBridge Connector Tunnel Between a Citrix ADC Appliance and Cisco IOS Device
CloudBridge Connector Tunnel Diagnostics and Troubleshooting
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Configure negative caching of DNS records
The Citrix ADC appliance supports caching of negative responses for a domain. A negative response indicates that information about a requested domain does not exist, or that the server cannot provide an answer for the query. The storage of this information is called negative caching. Negative caching helps speed up responses to queries about a domain.
Note:
Negative caching is supported only when the back-end server is configured as an authoritative DNS (ADNS) server for the queried domain.
A negative response can be one of the following:
- NXDOMAIN error message—If a negative response is present in the local cache, the Citrix ADC returns an error message (NXDOMAIN). If the response is not in the local cache, the query is forwarded to the server, and the server returns an NXDOMAIN error to the Citrix ADC appliance. The appliance caches the response locally, then returns the error message to the client.
- NODATA error message—If the domain name in query is valid but records of the given type are not available, the appliance sends a NODATA error message.
When negative caching is enabled, the appliance caches the negative response from the DNS server and serves the future requests from the cache only. This helps speed up responses to queries and also to reduce the DNS traffic. Negative caching can be used in all deployments, that is, when a Citrix ADC appliance is serving as a proxy, as an end resolver, or as a forwarder.
You can enable or disable negative caching using DNS profile, for more information see,DNS profiles. By default, negative caching is enabled in the default DNS profile (default-dns-profile) that are bound by default to a DNS virtual server or in the newly created DNS profile.
Enable or disable negative caching by using the CLI
At the command prompt, type the following commands to enable or disable negative caching and verify the configuration:
- add dns profile [-cacheRecords ( ENABLED | DISABLED )] [-cacheNegativeResponses (ENABLED | DISABLED )] - show dns profile []
例子啊f a default DNS profile:
> sh dns profile default-dns-profile 1) default-dns-profile Query logging : DISABLED Answer section logging : DISABLED Extended logging : DISABLED Error logging : DISABLED Cache Records : ENABLED Cache Negative Responses: ENABLED Done
例子啊f a newly created DNS profile:
>添加dnsprofile dns_profile1 -cacheRecords启用D -cacheNegativeResponses ENABLED Done > show dns profile dns_profile1 1) dns_profile1 Query logging : DISABLED Answer section logging : DISABLED Extended logging : DISABLED Error logging : DISABLED Cache Records : ENABLED Cache Negative Responses: ENABLED Done
Specify service or virtual server level DNS parameters by using the CLI
At the command prompt, perform the following:
Configure the DNS profile.
add dns profile
[-cacheRecords ( ENABLED | DISABLED )] [-cacheNegativeResponses (ENABLED | DISABLED )] DNS配置文件绑定到服务或虚拟爵士ver.
To bind the DNS profile to the service:
set service
[-dnsProfileName ]
Example:
>set service service1 -dnsProfileName dns_profile1 Done
To bind the DNS profile to the virtual server:
set lb vserver
Example:
>set lb vserver lbvserver1 -dnsProfileName dns_profile1 Done
Specify service or virtual server level DNS parameters by using the GUI
Configure the HTTP profile.
Navigate toSystem>Profiles>DNS Profile, and create the DNS profile.
Bind the HTTP profile to the service or virtual server.
Navigate toTraffic Management>Load Balancing>Services/Virtual Servers, and create the DNS profile, which should be bound to the service/virtual server.
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