NetScaler Application Delivery Software 6.1: Weblogging

Technotes Created Modified Read Rating
IPs are Not Logged in the Proper Files
Symptoms In spite of defining IPs explicitly in the filter, the IPs are not getting logged in the proper files. Cause If there are definitions of the same IP in more than one filter in the log.con...
CTX109767
8/8/07 8/8/07 1,155 Unrated
NetScaler Web Logging (NSWL) Fails to Start as a Windows Service
Symptoms On a Windows server, the NetScaler Web Logging (NSWL) utility was installed using the instructions provided in the NetScaler Installation and Configuration Guide : nswl -install -f &l...
CTX113405
6/18/07 6/18/07 3,087 Unrated
How to Configure Web Logging for NetScalers in a High Availability Pair
Summary NetScaler allows Web server logging on various operating systems. This article explains the Web logging configuration on a Windows operating system for a High Availability (HA) NetScaler p...
CTX110498
11/14/06 11/14/06 5,280 1
Some of the Log Transaction Data in the Log Files is Being Lost
Q: Some of the log transaction data in the log files is being lost. What is the reason and how can it be overcome? A: The most probable reason for losing transaction data is Buffer Overflow. Norm...
CTX109699
9/28/06 9/28/06 3,040 Unrated
What is Web Logging? Why is Web Logging Needed?
Q: What is Web logging? A: The Web logging feature is used for logging transaction data (HTTP and HTTPS traffic). It records transaction data on to a buffer in the NetScaler. The Web logging clien...
CTX109693
7/26/06 7/26/06 3,662 Unrated
What Information Must be Collected After a Windows NetScaler Web Logging Crash?
Q: What information must be collected after a Windows NetScaler Web Logging crash? A: In case of a Windows NetScaler Web logging crash, collect the following information from the Windows Web loggi...
CTX109755
6/29/06 6/30/06 3,653 Unrated
How Do You Ensure That Logging Takes Place After a Failover in a High Availability Pair?
Q: How do you ensure that logging takes place after a failover in a High Availability pair? A: To ensure logging to take place in a High Availability configuration after a failover, users should d...
CTX109805
6/29/06 6/29/06 3,529 55555
Can the NetScaler Web Logging Feature be Used to Identify Which Client is Served by Which Back-end Server for a Particular Virtual IP Address?
Q: Can the NetScaler Web logging feature be used to identify which client is served by which back-end server for a particular virtual IP address (VIP)? A: Yes, this can be identified through loggi...
CTX109801
6/29/06 6/29/06 4,800 Unrated
Can a Single Web Logging Client Receive Logs from Multiple NetScalers? How is Fault Tolerance Achieved for Web Logging?
Q: Can a single Web logging client receive logs from multiple NetScalers? A: A Web logging client can collect log transactions from multiple NetScalers and perform consolidated logging. Q: How is ...
CTX109807
6/29/06 6/29/06 3,104 Unrated
Can the File Size Limit on the NetScaler Web Logging Client be Eliminated?
Q: Can the file size limit on the NetScaler Web logging client be eliminated? A: Yes, users can create log files of unlimited size on the Web logging client by removing the logFileSizeLimit prop...
CTX109798
6/29/06 6/29/06 727 Unrated
What Are the Various Counters for Web Logging on NetScaler and What Do They Mean?
Q: What are the various counters for Web logging on NetScaler and what do they mean? A: Using the nsapimgr command shows you the various counters for Web logging: nsapimgr -d logbufstats    Buf...
CTX109734
6/9/06 6/28/06 835 Unrated
How is Log Rotation on the Web Logging Client Configured ?
Q. How is log rotation on the NetScaler Web logging client configured? A: The log rotation of the log file on the NetScaler Web logging client is governed by the values configured for the two log ...
CTX109794
6/12/06 6/28/06 3,806 Unrated
What is the Difference Between Installing the Web Logging Client as a Windows Service or Starting it From the Command Prompt?
Q: What is the difference between installing the Web logging client as a Windows Service or starting it from the command prompt? A: There are some differences pertaining to the way it is installed...
CTX109754
6/22/06 6/22/06 4,681 Unrated
If a Filter is Defined Without Any Log Properties in the Log.conf File, How Are Transactions Logged?
Q: If a filter is defined without any log properties in the log.conf file, how are transactions logged? A: If a filter does not have log properties defined for it in the log.conf file, the setting...
CTX109770
6/16/06 6/16/06 3,994 Unrated
How Does Web Logging Work?
Q: How does Web logging work? A: The new transactions on the NetScaler are written to a circular buffer. The default size of the circular buffer is 16 megabytes (MB). Once the buffer is full (that...
CTX109694
6/13/06 6/16/06 3,355 Unrated
Explaining Web Logging Buffer Overflow
Summary This article described buffer overflow in NetScaler Web logging. The most probable reason for losing transaction data is buffer overflow. Background For normal Web logging patterns, the n...
CTX109700
6/14/06 6/15/06 3,502 1
What is a Default Filter in the Log.conf File? What are the Default Settings for the Log Properties in the Log.conf File?
Q: What is a default filter in the log.conf file? What are the default settings for the log properties in the log.conf file? A: A special filter called ”default” can be defined without any HOST/IP...
CTX109757
6/13/06 6/15/06 3,084 Unrated
NetScaler Web Logging Configuration
Summary This is an overview of the NetScaler Web logging buffer configuration, with requirements for the client and a suggested configuration. Background The default Web logging buffer size is 16 ...
CTX109697
6/14/06 6/14/06 4,648 Unrated
How do You Configure Logging of HTTP Error Messages in Web Logging?
Q: How do you configure logging of HTTP error messages in Web logging? A: To enable the logging of HTTP error messages, issue the following command from the shell prompt:   nsapimgr -ys log_httpe...
CTX109738
6/13/06 6/13/06 4,608 Unrated
What Types of Data Can be Logged Through Web Logging?
Q: What types of data can be logged through Web logging? A: Web Logging can only log HTTP and HTTPS traffic. Data of other service types (for example, UDP, TCP, or FTP) cannot be logged.
CTX109695
6/13/06 6/13/06 3,349 Unrated
The NetScaler Web Logging Client Does Not Log Traffic.
Symptoms The NetScaler Web logging client (nswl) does not log any traffic. Users receive the following error message: “Not enough privileges for the user < xxxx >” Resolution The NetScaler ...
CTX109811
6/7/06 6/12/06 4,047 Unrated
Custom Client-IP Header Processing Module for Apache 2.x
6/12 -andresb- fixed spacing
CTX109555
6/9/06 6/12/06 10,881 55555
How Does Web Logging of HTTPS (SSL) Traffic Take Place?
Q: How does Web logging of HTTPS (SSL) traffic take place? A: Web logging of HTTPS traffic takes place only if SSL offload is taking place on the NetScaler, meaning the service type is defined as ...
CTX109696
6/8/06 6/8/06 5,077 Unrated
How to Log Clients' Source IP Addresses in a NetScaler-proxied Web Server Environment
Summary This document describes how to log clients’ source IP addresses in a NetScaler-proxied Web server environment. Requirements This apply to virtual servers with type HTTP or SSL offloading. ...
CTX109753
6/7/06 6/8/06 6,972 Unrated
How to Rewrite HTTP Headers With Client IP
Summary This document explains how to configure the NetScaler to rewrite the contents of an HTTP header in an inbound request packet with the source IP address of the request. Requirements This pr...
CTX109599
6/8/06 6/8/06 13,003 Unrated
How to Log Multiple IPs in a Single Log File
Summary This article describes how to log multiple IPs in a single log file. Procedure Multiple IPs can be logged in a single log file by defining a filter of the following format in the log.conf...
CTX109763
6/8/06 6/8/06 3,021 Unrated
How Do You Clear the Statistics Pertaining to Web Logging Counters?
Q: How do you clear the NetScaler Web logging counters? A: Issue the following command: nsapimgr – S weblogbuf This reinitializes the BufOvrFlow and LogPcbClose counters. More Information Additio...
CTX109737
6/2/06 6/2/06 3,401 Unrated
Web Logging of Integrated Cache Transactions
Summary This article describes the logging of HTTP responses served by the Citrix NetScaler Integrated Cache functionality. When a cache is serving responses to clients, Web Logging performed on t...
CTX109752
5/22/06 5/22/06 3,980 1
How to Configure Apache to Log Client IP Addresses
Summary This document describes the procedure for configuring an Apache Web server to log client IP addresses based on the value contained within a custom HTTP header inserted by a NetScaler devic...
CTX109350
4/10/06 4/10/06 9,683 55555
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