Alert Logic Requirements for Virtual and Physical Appliances
Requirements for Alert Logic IDS virtual appliances
The following table describes the basic system requirements to install a virtual IDS appliance:
| Components | System Requirements |
|---|---|
| CPU | 4 virtual CPUs |
| RAM | 8 GB |
| Disk space | 40 GB minimum |
| Supported virtual environment | VMware only |
| Encryption | TLS Standard (SSL): 2048-bit key encryption, 256-bit AES bulk encryption |
Bandwidth volume directly impacts the ability of the appliance to inspect traffic. Therefore, high traffic environments may require a virtual machine with additional processor and memory resources.
Requirements for Alert Logic Managed Web Application Firewall (WAF) appliances
VMware Managed WAF virtual appliance
The following table describes the basic system requirements to install a VMware virtual appliance:
| Components | System Requirements |
|---|---|
| CPU | 2 CPUs 64 bit |
| RAM | 4 GB |
| Disk space | 250 GB |
| Virtual network interface(s) | An interface with an external IP address for management An interface with access to the web servers to be protected |
| Encryption / Decryption for SSL traffic | AES-NI CPU instruction set for encryption/decryption of SSL traffic on VMs and host OS is recommended |
| Clustering | For clustering to work, ensure promiscuous mode, forged transmits, and MAC address changes are allowed on the VMware virtual switch (vSwitch) or the port group in the VMware ESX network configuration |
If your CPU usage is above 80 percent for extended periods, Alert Logic recommends adding processor resources.
Physical Managed WAF appliance capacity
The following table describes the bandwidth limits for the Managed WAF physical appliances:
| Appliance type | Throughput | Number of Virtual Hosts | Number of SSL Certificates | Number of Proxies |
|---|---|---|---|---|
| Tier 1 - R410, R220, R230 | 0-250 Mbps | 1000 | 100 | 200 |
| Tier 2 - R630 | 250-1000 Mbps | 1000 | 100 | 200 |
This is the recommended basic configuration for the Managed WAF product when deployed on a virtual appliance. Bandwidth volume directly impacts the ability of the appliance to inspect traffic. Therefore, high traffic environments may require a virtual machine with additional processor and memory resources.
Physical Managed WAF appliance specifications
The following table describes the specifications for the physical appliance:
| Components | System Specifications |
|---|---|
| CPU | Intel Xeon |
| RAM | 4 GB DDR3 |
| Disk space | 500 GB |
| Chassis | 1U rack mounted |
| Power | 250W |
| Encryption | TLS Standard (SSL): 2048-bit key encryption, 256-bit AES bulk encryption |