- Notes, cautions, and warnings
- Introduction
- Installation
- Updating individual system components
- Storage Management Service
- Instrumentation Service
- Remote Access Controller
- Logs
- What is new in this release
- Systems management standards availability
- Server Administrator Home Page
- Other Documents You May Need
- Obtaining Technical Assistance
- Contacting Dell EMC
- Setup And Administration
- Role-Based Access Control
- Authentication
- Encryption
- Assigning User Privileges
- Adding users to a domain on Windows operating systems
- Creating Server Administrator users for supported Red Hat Enterprise Linux and SUSE Linux Enterprise Server operating systems
- Disabling Guest And Anonymous Accounts In Supported Windows Operating Systems
- Configuring The SNMP Agent
- Configuring the SNMP agent on systems running supported Windows operating systems
- Changing the SNMP community name
- Configuring Your System To Send SNMP Traps To A Management Station
- Configuring The SNMP Agent On Systems Running Supported Red Hat Enterprise Linux
- SNMP Agent Access Control Configuration
- Server Administrator SNMP Agent Install Actions
- Changing The SNMP Community Name
- Configuring Your System To Send Traps To A Management Station
- Configuring the SNMP agent on systems running supported SUSE Linux enterprise server
- Sever Administrator SNMP Install Actions
- Enabling SNMP Access From Remote Hosts
- Changing The SNMP Community Name
- Configuring the SNMP agent on systems running supported VMware ESXi 5.X And ESXi 6.X operating systems
- Configuring Your System To Send Traps To A Management Station
- Firewall Configuration On Systems Running Supported Red Hat Enterprise Linux Operating Systems And SUSE Linux Enterprise Server
- Using Server Administrator
- Logging In And Out
- Server Administrator Local System Login
- Server Administrator Managed System Login — Using the Desktop Icon
- Server Administrator Managed System Login — Using The Web Browser
- Central web server login
- Using The Active Directory Login
- Single Sign-On
- Configuring Security Settings On Systems Running A Supported Microsoft Windows Operating System
- The Server Administrator home page
- Using The Online Help
- Using The Preferences Home Page
- Using The Server Administrator Command Line Interface
- Logging In And Out
- Server Administrator services
- Working with remote access controller
- Viewing Basic Information
- Configuring The Remote Access Device To Use A LAN Connection
- Configuring The Remote Access Device To Use A Serial Port Connection
- Configuring The Remote Access Device To Use A Serial Over LAN Connection
- Additional Configuration For iDRAC
- Configuring Remote Access Device Users
- Setting Platform Event Filter Alerts
- Server Administrator logs
- Setting Alert Actions
- Troubleshooting
- Frequently Asked Questions
Dell OpenManage Server Administrator Version 8.5 User's Guide
Firewall Configuration On Systems Running Supported Red Hat Enterprise Linux Operating Systems And SUSE Linux Enterprise Server
If you enable
firewall security while installing Red Hat Enterprise Linux/SUSE Linux,
the SNMP port on all external network interfaces is closed by default.
To enable SNMP management applications such as IT Assistant to discover
and retrieve information from Server Administrator, the SNMP port
on at least one external network interface must be open. If Server
Administrator detects that the SNMP port is not open in the firewall
for any external network interface, Server Administrator displays
a warning message and logs a message to the system log.
You can open the SNMP port by disabling the firewall, opening an entire external network interface in the firewall, or opening the SNMP port for at least one external network interface in the firewall. You can perform this action before or after Server Administrator is started.
To open the SNMP port on Red Hat Enterprise Linux using one of the previously described methods:
- At the Red Hat Enterprise Linux command prompt, type setup and press <Enter> to start the Text Mode Setup
Utility.
NOTE: This command is available only if you have performed a default installation of the operating system.
The Choose a Tool menu appears.
- Select Firewall Configuration using
the down arrow and press <Enter>.
The Firewall Configuration screen appears.
- Press <Tab> to select Security Level and then press the spacebar to select the security level you want
to set. The selected Security Level is indicated
by an asterisk.
NOTE: For more information about the firewall security levels, press <F1>. The default SNMP port number is 161. If you are using the X Window System graphical user interface, pressing <F1> may not provide information about firewall security levels on newer versions of Red Hat Enterprise Linux.
- To disable the firewall, select No firewall or Disabled and go to Step7.
- To open an entire network interface or the SNMP port, select High, Medium, or Enabled and proceed to step 4.
- Press <Tab> to go to Customize and press <Enter>.
The Firewall Configuration-Customize screen appears.
- Select whether to open an entire network interface or just
the SNMP port on all network interfaces.
- To open an entire network interface, press <Tab> to go to one of the Trusted Devices and press the spacebar. An asterisk in the box to the left of the device name indicates that the entire interface is opened.
- To open the SNMP port on all network interfaces, press <Tab> to go to Other ports and type snmp:udp.
- Press <Tab> to select OK and press <Enter>
The Firewall Configuration screen appears.
- Press <Tab> to select OK and press <Enter>
The Choose a Tool menu appears.
- Press <Tab> to select Quit and press <Enter>.
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