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Note: To use SSH, you must have a SSH client installed. Most Linux and other UNIX® platforms include a SSH client, but Microsoft Windows operating systems do not. SSH clients are available from various vendors. InRow RC/RD/RP (600 mm) User’s Guide SNMP SNMPv1. All user names, passwords, and community names for SNMP are transferred over the network as plain text. If your network requires the high security of encryption, disable SNMP access or set the access for each community to Read. (A community with Read access can receive status information and use SNMP traps.) When using InfraStruXure Central to manage a cooling unit on the public network of a system, you must have SNMP enabled in the cooling unit. Read access will allow InfraStruXure Central to receive traps from the cooling unit, but Write access is required while you use the interface of the cooling unit to set InfraStruXure Central as a trap receiver. For detailed information on enhancing and managing the security of your system, see the Security Handbook, available on the Utility CD or from the APC Web site, Use the options under SNMP on the left navigation menu to configure the following: Option Description access Enable SNMPv1 Access: Enables SNMP version 1 as a method of communication with this device. access You can configure up to four access control entries to specify which Network Management control Systems (NMS) have access to this device. The opening page for access control, by default, assigns one entry to each of the four available SNMPv1 communities, but you can edit these settings to apply more than one entry to any community to grant access by several specific IP addresses, host names, or IP address masks. To edit the access control settings for a community, click its community name. • If you leave the default access control entry unchanged for a community, that community has access to this device from any location on the network. • If you configure multiple access control entries for one community name, the limit of four entries requires that one or more of the other communities must have no access control entry. If no access control entry is listed for a community, that community has no access to this device. Community Name: The name that a NMS must use to access the community. The maximum length is 15 ASCII characters, and the default community names for the four communities are "public", "private", "public2", and "private2". NMS IP/Host Name: The IP address, IP address mask, or host name that controls access by NMSs. A host name or a specific IP address (such as 149.225.12.1) allows access only by the NMS at that location. IP addresses that contain 255 restrict access as follows: • 149.225.12.255: Access only by a NMS on the 149.225.12 segment. • 149.225.255.255: Access only by a NMS on the 149.225 segment. • 149.255.255.255: Access only by a NMS on the 149 segment. • 0.0.0.0 (the default setting) which can also be expressed as 255.255.255.255: Access by any NMS on any segment. Access Type: The actions a NMS can perform through the community. • Read: GETS only, at any time. • Write: GETS at any time, and SETS when no user is logged onto the Web interface or control console. • Write+: GETS and SETS at any time. • Disabled: No GETS or SETS at any time. InRow RC/RD/RP (600 mm) User’s Guide SNMPv3. For SNMP GETs, SETs, and trap receivers, SNMPv3 uses a system of user profiles to identify users. An SNMPv3 user must have a user profile assigned in the MIB software program to perform GETs and SETs, browse the MIB, and receive traps. Note: To use SNMPv3, you must have a MIB program that supports SNMPv3. Note: The cooling unit supports only MD5 authentication and DES encryption. Option Description access SNMPv3 Access: Enables SNMPv3 as a method of communication with this device. user By default, lists the settings of four user profiles, configured with the user names "apc snmp profiles profile1" through "apc snmp profile 4", and no authentication and no privacy (no encryption of data). To edit the following settings for a user profile, click a user name in the list. User Name: The identifier of the user profile. SNMP version 3 maps GETs, SETs, and traps to a user profile by matching the user name of the profile to the user name in the data packet being transmitted. A user name can have up to 32 ASCII characters. Authentication Passphrase: A phrase of 15 to 32 ASCII characters that verifies that the NMS communicating with this device through SNMPv3 is the NMS it claims to be, that the message has not been changed during transmission, and that the message was communicated in a timely manner, indicating that it was not delayed and that it was not copied and sent again later at an inappropriate time. Privacy Passphrase: A phrase of 15 to 32 ASCII characters that ensures the privacy of the data (by means of encryption) that a NMS is sending to this device or receiving from this device through SNMP v3. Authentication Protocol: The ...

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