How to Enable Caching of Web Pages

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Become an administrator.
For more information, see Using Your Assigned Administrative Rights in Securing Users and Processes in Oracle Solaris 11.3.

Register the interfaces by adding the names of each of the physical interfaces in the /etc/nca/nca.if file.
See the nca.if(4) man page for more information. For example:
```
# cat /etc/nca/nca.if
hme0
hme1
```
Each interface must have an accompanying hostname.interface-name file and an entry in /etc/hosts file for the contents of hostname.interface-name.

To start the NCA feature on all interfaces, place an asterisk, *, in the nca.if file.

Enable the ncakmod kernel module by Changing the status entry in /etc/nca/ncakmod.conf to enabled.

# cat /etc/nca/ncakmod.conf
#
# NCA Kernel Module Configuration File
#
status=enabled
httpd_door_path=/system/volatile/nca_httpd_1.door
nca_active=disabled

See the ncakmod.conf(4) man page for more information.

(Optional) Enable NCA logging by changing the status entry in /etc/nca/ncalogd.conf to enabled.
Change the status entry in /etc/nca/ncalogd.conf to enabled.
```
# cat /etc/nca/ncalogd.conf
#
# NCA Logging Configuration File
#
status=enabled
logd_path_name="/var/nca/log"
logd_file_size=1000000
```
You can change the location of the log file by changing the path that is indicated by the logd_path_name entry. The log file can be a raw device or a file. See the ncalogd.conf(4) man page for more information about the configuration file.

(Optional) Define ports for multiple instance support by adding the port numbers in the /etc/nca/ncaport.conf file.
The following example causes NCA to monitor port 80 on all configured IP addresses.
```
# cat /etc/nca/ncaport.conf
#
# NCA Kernel Module Port Configuration File
#
  .
  .
ncaport=*/80
```

For x86 only: Increase the virtual memory size by using the eeprom command to set the kernelbase of the system.
```
# eeprom kernelbase=0x90000000
# eeprom kernelbase
kernelbase=0x90000000
```
The second command verifies that the parameter has been set.

Note - By setting the kernelbase, you reduce the amount of virtual memory that user processes can use to less than 3 Gbytes. This restriction means that the system is not ABI compliant. When the system boots, the console displays a message that warns you about noncompliance. Most programs do not actually need the full 3–Gbyte virtual address space. If you have a program that needs more than 3 Gbytes, run the program on a system that does not have NCA enabled.

Reboot the server.

Example 3 Using a Raw Device as the NCA Log File

The logd_path_name string in ncalogd.conf can define a raw device as the place to store the NCA log file. The advantage to using a raw device is that the service can run faster because the overhead in accessing a raw device is less.

The NCA service tests any raw device that is listed in the file to ensure that no file system is in place. This test ensures that no active file systems are accidentally written over.

The following example shows how to prevent this test from finding a file system, run the following command. The example command destroys part of the file system on any disk partition that had been configured as a file system. In this example, /dev/rdsk/c0t0d0s7 is the raw device that has an old file system in place.

# dd if=/dev/zero of=/dev/rdsk/c0t0d0s7 bs=1024 count=1

After running the dd command, you can then add the raw device to the ncalogd.conf file.

# cat /etc/nca/ncalogd.conf
#
# NCA Logging Configuration File
#
status=enabled
logd_path_name="/dev/rdsk/c0t0d0s7"
logd_file_size=1000000

Example 4 Using Multiple Files for NCA Logging

The logd_path_name string in ncalogd.conf can define multiple targets as the place to store the NCA log file. The second file is used when the first file is full. The following example shows how to select to write to the /var/nca/log file first and then use a raw partition.

# cat /etc/nca/ncalogd.conf
#
# NCA Logging Configuration File
#
status=enabled
logd_path_name="/var/nca/log /dev/rdsk/c0t0d0s7"
logd_file_size=1000000