60Cyclades™ ACS 6000 Advanced Console Server Command Reference Guide

# groups <username>

To delete a member from the wheel group:

1.Edit the file /etc/group.

2.Remove the username from the line with wheel::XX:<user1>,<user2>,<user3>.

Sudo command

Using the sudo (superuser do) command, a user can execute a command using the privileges of another user (often root), as specified in the /etc/sudoers file. The user is authenticated using his own password, not the root password. The /etc/sudoers file logs all commands and arguments.

Syntax:

sudo <command>

Configuring sudo

A system administrator configures the /etc/sudoers file to give groups or users access to some or all commands not authorized with their normal account. An administrator should log into the console server as a root user and edit the /etc/sudoers file by using the /usr/sbin/visudo command to configure sudo.

The sudoers file is composed of aliases and user specifications. When multiple entries match for a user, they are applied in order. Where there are conflicting values, the last match is used.

Since the sudoers file is parsed in a single pass, order is important. You should structure sudoers so that the Host_Alias, User_Alias, and Cmnd_Alias specifications come first, followed by any Default_Entry lines, and finally the Runas_Alias and user specifications.

An example of an /etc/sudoers file:

#User alias specification

User_Alias FULLTIMERS = millert, mikef, dowdy

User_Alias PARTTIMERS = bostley, jwfox, crawl

#Cmnd alias specification Cmnd_Alias KILL = /bin/kill Cmnd_Alias SHUTDOWN = /sbin/shutdown Cmnd_Alias REBOOT = /sbin/reboot Cmnd_Alias SU = /bin su

FULLTIMERS ALL = KILL, SHUTDOWN, REBOOT, SU

PARTTIMERS ALL = SHUTDOWN, REBOOT

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Avocent ACS 6000 manual Configuring sudo, To delete a member from the wheel group, Sudo command
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ACS 6000 specifications

The Avocent ACS 6000 is a leading edge solution designed for remote access and management of critical IT infrastructure. This compact and robust device serves as a key tool for IT administrators, allowing them to manage serial console access for servers, networking equipment, and other serially controlled devices. Ideal for both enterprise environments and smaller settings, the ACS 6000 enhances operational efficiency and reliability.

One of the standout features of the Avocent ACS 6000 is its ability to provide secure remote access. The device supports various security protocols, including SSH, SSL, and IP filtering, ensuring that access to the managed devices is protected against unauthorized entry. With strong encryption standards, it provides peace of mind for organizations handling sensitive data.

The ACS 6000 is equipped with advanced management capabilities, enabling administrators to monitor and control serial communications across multiple devices from a single interface. This centralized management not only reduces the complexity associated with handling numerous individual devices, but it also streamlines troubleshooting and system diagnostics, resulting in quicker response times and less downtime.

Another notable characteristic of the ACS 6000 is its scalability. The modular design allows for easy expansion as organizational needs evolve. IT managers can begin with a basic configuration and upgrade seamlessly by adding more ports or features as necessary. This flexibility makes the ACS 6000 an ideal solution for growing organizations.

User-friendly features such as an intuitive web interface simplify the setup and configuration process. Through this interface, users can easily navigate and utilize various functions, including alert settings, logging, and reporting features that provide valuable insights into device performance and usage patterns.

In addition to its robust functionality, the ACS 6000 is designed with reliability in mind. Built to endure varied environmental conditions, it operates reliably in data centers and remote locations alike. The device can also handle high-voltage operations, making it versatile for various industrial applications.

In summary, the Avocent ACS 6000 stands out as an essential tool for modern IT management, delivering secure, scalable, and user-friendly solutions for remote access to serial controlled devices. With its advanced features and robust design, it effectively meets the challenges of IT infrastructure management in today's fast-paced digital landscape.
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