Click here to close now.

Welcome!

Linux Containers Authors: Elizabeth White, Carmen Gonzalez, Bart Copeland, Liz McMillan, Trevor Parsons

Related Topics: Linux Containers

Linux Containers: Article

OpenGear's CM4008

Console access at a great price!

I've been looking at a lot of console server and other out-of-band management solutions recently. These days, there's no shortage of console servers, appliances to manage console servers, and appliances to manage those applicances, each at enterprise cost availability.

But what if you're responsible for the network at a small business and you're looking for an out-of-band management solution on a small business budget? OpenGear's CM4008 provides secure out-of-band management for just under $500. It provides real price performance in a convenient package for small business console requirements by leveraging the power of embedded Linux and open source. The CM4008 includes key networking and security modules (OpenSSH, OpenSSL, PAM, Netfilter/IPTables and so on) too. OpenGear has harnessed the power of open source to provide a secure platform for infrastructure management while keeping that platform economical for small businesses.

The CM4008 is small, about the size of wireless router, and has eight ports to connect servers via standard CAT5 cables (with serial adapters provided). The CM4008 easily integrates into your network by initiating a connection immediately via DHCP. The OpenGear Quick Start Guide (provided) says that the CM4008 will default to 192.168.0.1, but my unit picked up a DHCP address of 192.168.0.105, so this address seems to depend on your network configuration.

Open the address with your browser and the Web interface to the CM4008 greets you. Within minutes you can configure the serial ports to allow access via telnet, ssh, or raw TCP (see Figure 1). Other common serial settings can be configured, but no changes were necessary for me to proceed. I was also able to add a user via the Web interface and then authorize that user to one or all of the console ports. Once I had configured my user name, password, and the serial port I need to connect to, I configured a getty on my Fedore Core 4 box to allow console access on ttyS0. I added the following line to /etc/inittab:

co:2345:respawn:/sbin/agetty ttyS0 9600 vt100

Connecting to consoles is a snap without the need to learn any extra commands or syntax, and without any Java Web consoles. With the CM4008, you simply connect via the configured protocol using ports designated for each console port on the CM4008. For example, to connect to the serial console attached to port 1 on the CM4008 via ssh, I ssh'd to the address of the CM4008 on port 3001.

Example

ssh -p 3001 [email protected]

Depending on which terminal emulator you use, you may see slightly different output to your screen. For instance, I initially tested the CM4008 with Putty and found that passwords I entered into the console session were visible. Testing with xterm in Fedora Core on my laptop showed no similar behavior (see Figure 2).

One of the pleasant features of the CM4008 is that you can connect to the serial console simultaneously from several different connections. Console access can be shared to allow teams to co-troubleshoot a problem, or for training purposes as output can be seen on any of the console connections interactively. For example, I was able to display an entire software migration to a team of new engineers by having them all log into the CM4008 on the same port.

All in all, I was very pleased with the simplicity, ease of use, and value of the OpenGear CM4008 and would recommend it to small IT shops who have a need for out-of-band or console management. The value provided by using embedded Linux enables OpenGear to pass enormous savings on to customers. As a result, even in the case of the CM4008's 16- and 48-port rack mountable siblings, the cost ends up being one third to one half of the list price of OpenGear's closest competitors.

CM4008 Specifications
List Price: $495
OpenGear Inc. www.opengear.com

Security and Authentication

  • Secure Shell (SSHV2)
  • IP packet and security filtering
  • TACACS+, RADIUS
  • PAP/CHAP authentication (dial up)
  • User access lists per port
  • Local authentication
  • System event syslog
Management
  • Web management (HTTP/HTTPS)
  • Command Line interface (Linux Shell)
  • SNMP
  • Port triggers and alerts
  • Port sniffing (simultaneous access to a port)
  • Online data buffering
  • Offline data logging (Syslog, NFS, CIFS)
Accessibility
  • In-Band (Ethernet)
  • Out-of- band (dial up) - modem access through DB9 port
  • Local access (though DB9 serial port)
Other Protocols Supported
  • DHCP for dynamic IP assignment
  • NTP for time synchronization
  • PPP for dial up access
  • FTP, TFTP client for file transfer
Upgrades
  • Flash upgradeable
  • Unlimited free upgrades from online FTP site
Port Access
  • Telnet/SSH to Linux shell
  • SUN / Solaris ready - no inadvertent breaks
  • Break over SSH support
Other Features
  • Linux operating system
  • Full source code access enables custom configuration
  • SSH Sessions on all po

More Stories By Matt Frye

Matt Frye is the Review Editor at Linux.SYS-CON.com, and Engineer in New Product Introduction and Emerging Network Solutions at Tekelec.

Comments (2) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
Enterprise Open Source Magazine News Desk 11/12/05 03:22:39 PM EST

LinuxWorld Product Review: OpenGear's CM4008
I've been looking at a lot of console server and other out-of-band management solutions recently. These days, there's no shortage of console servers, appliances to manage console servers, and appliances to manage those applicances, each at enterprise cost availability.

LinuxWorld News Desk 11/12/05 03:09:06 PM EST

LinuxWorld Product Review: OpenGear's CM4008
I've been looking at a lot of console server and other out-of-band management solutions recently. These days, there's no shortage of console servers, appliances to manage console servers, and appliances to manage those applicances, each at enterprise cost availability.

@ThingsExpo Stories
The enterprise market will drive IoT device adoption over the next five years. In his session at @ThingsExpo, John Greenough, an analyst at BI Intelligence, division of Business Insider, analyzed how companies will adopt IoT products and the associated cost of adopting those products. John Greenough is the lead analyst covering the Internet of Things for BI Intelligence- Business Insider’s paid research service. Numerous IoT companies have cited his analysis of the IoT. Prior to joining BI Intelligence, he worked analyzing bank technology for Corporate Insight and The Clearing House Payment...
"ciqada is a combined platform of hardware modules and server products that lets people take their existing devices or new devices and lets them be accessible over the Internet for their users," noted Geoff Engelstein of ciqada, a division of Mars International, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
SYS-CON Events announced today that Secure Infrastructure & Services will exhibit at SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Secure Infrastructure & Services (SIAS) is a managed services provider of cloud computing solutions for the IBM Power Systems market. The company helps mid-market firms built on IBM hardware platforms to deploy new levels of reliable and cost-effective computing and high availability solutions, leveraging the cloud and the benefits of Infrastructure-as-a-Service (IaaS...
The 4th International Internet of @ThingsExpo, co-located with the 17th International Cloud Expo - to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA - announces that its Call for Papers is open. The Internet of Things (IoT) is the biggest idea since the creation of the Worldwide Web more than
SYS-CON Events announced today that ProfitBricks, the provider of painless cloud infrastructure, will exhibit at SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. ProfitBricks is the IaaS provider that offers a painless cloud experience for all IT users, with no learning curve. ProfitBricks boasts flexible cloud servers and networking, an integrated Data Center Designer tool for visual control over the cloud and the best price/performance value available. ProfitBricks was named one of the coolest Clo...
"In the IoT space we are helping customers, mostly enterprises and industry verticals where time-to-value is critical, and we help them with the ability to do faster insights and actions using our platform so they can transform their business operations," explained Venkat Eswara, VP of Marketing at Vitria, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
SYS-CON Events announced today that WHOA.com, an ISO 27001 Certified secure cloud computing company, participated as “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which took place June 9-11, 2015, at the Javits Center in New York City, NY. WHOA.com is a leader in next-generation, ISO 27001 Certified secure cloud solutions. WHOA.com offers a comprehensive portfolio of best-in-class cloud services for business including Infrastructure as a Service (IaaS), Secure Cloud Desktop, Cloud Storage, Disaster Recovery, Integrated Applications and Security.
SYS-CON Events announced today that Intelligent Systems Services will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Established in 1994, Intelligent Systems Services Inc. is located near Washington, DC, with representatives and partners nationwide. ISS’s well-established track record is based on the continuous pursuit of excellence in designing, implementing and supporting nationwide clients’ mission-critical systems. ISS has completed many successful projects in Healthcare, Commercial, Manu...
The Internet of Things is not only adding billions of sensors and billions of terabytes to the Internet. It is also forcing a fundamental change in the way we envision Information Technology. For the first time, more data is being created by devices at the edge of the Internet rather than from centralized systems. What does this mean for today's IT professional? In this Power Panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, panelists addressed this very serious issue of profound change in the industry.
With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo in Silicon Valley. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be! Internet of @ThingsExpo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 17th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal an...
SYS-CON Events announced today that kintone has been named “Bronze Sponsor” of SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. kintone promotes cloud-based workgroup productivity, transparency and profitability with a seamless collaboration space, build your own business application (BYOA) platform, and workflow automation system.
Discussions about cloud computing are evolving into discussions about enterprise IT in general. As enterprises increasingly migrate toward their own unique clouds, new issues such as the use of containers and microservices emerge to keep things interesting. In this Power Panel at 16th Cloud Expo, moderated by Conference Chair Roger Strukhoff, panelists addressed the state of cloud computing today, and what enterprise IT professionals need to know about how the latest topics and trends affect their organization.
SYS-CON Events announced today that SoftLayer, an IBM company, has been named “Gold Sponsor” of SYS-CON's 17th International Cloud Expo®, which will take place November 3–5, 2015 at the Santa Clara Convention Center in Santa Clara, CA. SoftLayer operates a global cloud infrastructure platform built for Internet scale. With a global footprint of data centers and network points of presence, SoftLayer provides infrastructure as a service to leading-edge customers ranging from Web startups to global enterprises. SoftLayer’s modular architecture, full-featured API, and sophisticated automation pro...
17th Cloud Expo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterprises are using some form of XaaS – software, platform, and infrastructure as a service.
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. A singular vision – a belief in a better way to address current and future data management needs – guides CommVault in the development of Singular Information Management® solutions for high-performance data protection, universal availability and simplified management of data on complex storage networks. CommVault's exclusive single-platform architecture gives companies unp...
Buzzword alert: Microservices and IoT at a DevOps conference? What could possibly go wrong? In this Power Panel at DevOps Summit, moderated by Jason Bloomberg, the leading expert on architecting agility for the enterprise and president of Intellyx, panelists peeled away the buzz and discuss the important architectural principles behind implementing IoT solutions for the enterprise. As remote IoT devices and sensors become increasingly intelligent, they become part of our distributed cloud environment, and we must architect and code accordingly. At the very least, you'll have no problem fillin...
The 17th International Cloud Expo has announced that its Call for Papers is open. 17th International Cloud Expo, to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, APM, APIs, Microservices, Security, Big Data, Internet of Things, DevOps and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal today!
The 5th International DevOps Summit, co-located with 17th International Cloud Expo – being held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA – announces that its Call for Papers is open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the world's largest enterprises – and delivering real results. Among the proven benefits, DevOps is corr...
Internet of Things (IoT) will be a hybrid ecosystem of diverse devices and sensors collaborating with operational and enterprise systems to create the next big application. In their session at @ThingsExpo, Bramh Gupta, founder and CEO of robomq.io, and Fred Yatzeck, principal architect leading product development at robomq.io, discussed how choosing the right middleware and integration strategy from the get-go will enable IoT solution developers to adapt and grow with the industry, while at the same time reduce Time to Market (TTM) by using plug and play capabilities offered by a robust IoT ...
Today air travel is a minefield of delays, hassles and customer disappointment. Airlines struggle to revitalize the experience. GE and M2Mi will demonstrate practical examples of how IoT solutions are helping airlines bring back personalization, reduce trip time and improve reliability. In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect with GE, and Dr. Sarah Cooper, M2Mi’s VP Business Development and Engineering, will explore the IoT cloud-based platform technologies driving this change including privacy controls, data transparency and integration of real time context wi...