CHAPTER 5: Configuration

5.9.3.2. Linux Operators and Wild Cards

In addition to entering a specific IP address or partial IP address in the Allow or Deny list, you may also use standard Linux operators or wild cards. In most cases, the only operator used is "EXCEPT" and the only wild card used is "ALL," but more experienced Linux users may note that other operators and wild cards may also be used.

EXCEPT: This operator creates an exception in either the "allow" list or "deny" list. For example, if the Allow list includes a line which reads "192. EXCEPT 192.255.255.6," then all IP address that begin with "192." will be allowed; except 192.255.255.6 (providing that this address appears in the Deny list.)

ALL: The ALL wild card indicates that all IP Addresses should be allowed or denied. When ALL is included in the Allow list, all IP addresses will be allowed to connect; conversely, if ALL is included in the Deny list, all IP Addresses will be denied (except for IP addresses listed in the Allow list.) For example, if the Deny list includes a line which reads "ALL EXCEPT 168.255.192.192," then all IP addresses except 168.255.192.192 will be denied (except for IP addresses that are listed in the Allow list.)

Net/Mask Pairs: An expression of the form "n.n.n.n/m.m.m.m" is interpreted as a "net/mask" pair. A host address is matched if "net" is equal to the bitwise AND of the address and the "mask." For example, the net/mask pattern "131.155.72.0/255.255.254.0" matches every address in the range "131.155.72.0" through "131.155.73.255."

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Black Box MPSH16-D20-120V, MPSH8-S20-208+V, MPSH16-D20-208+V, MPSH8-D20-208+V, MPSH8-S20-120V Linux Operators and Wild Cards
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MPSH8-S20-120V, MPSH8-D20-120V, Outlet Managed PDU, MPSH8-D20-208+V, MPSH16-D20-120V specifications

The Black Box MPSH Series, specifically the MPSH16-D20-208+V, MPSH8-S20-208+V, MPSH16-D20-120V, and MPSH8-D20-208+V, represents a state-of-the-art solution in the realm of Outlet Managed Power Distribution Units (PDUs). Designed for seamless integration within data centers and server rooms, these PDUs are engineered to support the ever-evolving demands of modern IT infrastructures while ensuring energy efficiency and optimal performance.

One of the hallmark features of the MPSH series is its robust management capabilities. These PDUs allow for individual outlet monitoring and control, enabling IT managers to efficiently manage power consumption across various devices. This granular control helps in identifying underutilized equipment, managing power distribution more effectively, and ultimately lowering operational costs.

In terms of connectivity, the MPSH units are equipped with multiple outlets—providing flexibility to connect numerous devices. The MPSH16-D20-208+V, for instance, features sixteen outlets, while the MPSH8 series boasts eight. This variety allows for customization based on specific needs in different settings, whether it is a small server room or a large data center.

The MPSH PDUs also incorporate advanced technologies to enhance power efficiency and reliability. They are equipped with features such as surge protection, which shields sensitive equipment from voltage spikes, and power factor correction, which optimizes energy usage for improved efficiency. Additionally, remote management capabilities enable IT personnel to access power metrics and control outlet status from any location via a secure web interface, providing enhanced visibility and proactive management of power flows.

Safety and compliance are paramount in the design of the MPSH series. These PDUs adhere to industry standards, ensuring that they meet the necessary regulations for quality and safety, which is critical in preventing downtime and electrical hazards.

Moreover, the installation process for MPSH PDUs is straightforward, facilitating quick deployment within existing infrastructures. Their compact design allows for mounting in various configurations, maximizing space efficiency in crowded server racks.

Overall, the Black Box MPSH16-D20-208+V, MPSH8-S20-208+V, MPSH16-D20-120V, and MPSH8-D20-208+V Outlet Managed PDUs deliver a blend of functionality, efficiency, and safety, making them an indispensable asset for organizations looking to optimize their power management strategies in today’s data-driven environment.
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