Posts Tagged ‘dial-up’

Additional Security for Dial-Up, Out-of-Band Access to Console Servers

Monday, January 9th, 2012

Although there are plenty of different security and authentication options available for IP communication with a console server, security and authentication options are much more limited for those who need to establish a dial-up out-of-band connection with a console server. Popular authentication protocols such as LDAP, Kerberos and TACACS+ work fine when communicating via IP, but at present, there are few alternatives for authenticating dial-up out-of-band communication.

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Out of Band Management – An Essential Tool for Network Administrators

Wednesday, October 20th, 2010

To network administrators, the term “out of band management” can mean a number of different things, in some cases, it refers to a secondary, maintenance network that parallels the main network, and in other cases, it may refer to a dial-up/phone line connection to network devices. Generally speaking though, out of band management refers to a connection to a network device that comes from outside of the main user network.

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Out of Band Management via Dial-Up

Friday, October 8th, 2010

These days, when network administrators talk about “out of band management,” they’re usually talking about a serial console server, coupled with a secondary, maintenance network that works in parallel with the main network and serves to provide maintenance access when the main network is down. For the most part, that’s usually the case, but there are also cases where “out of band management” refers to a serial console server that can be accessed via a dial-up connection when network communication is not available.

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How Can an Out of Band Management Solution Minimize Network Downtime?

Monday, September 27th, 2010

These days, most large, corporate networks are actually comprised of two separate networks: one main network that allows users to access emails, inventory programs, servers and so forth, and a secondary “maintenance network” which provides out of band management capabilities, allowing IT personnel to access critical network elements when the main network is down or unavailable. This secondary maintenance network actually has several purposes; it enables IT personnel to upgrade or reconfigure network elements without effecting the ability of network users to access their files and emails, and it also provides the ability to diagnose and correct equipment problems if the main network ceases to function correctly.

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Why is Out of Band Management So Important to IT Personnel?

Friday, September 24th, 2010

These days, whenever the subject of remote network administration comes up, you’ll often hear the phrase “out of band” used. Most people have a vague idea that “out of band” refers to an alternative means to establish a remote connection with a piece of network equipment, outside of normal network communication. But just what exactly does the term “out of band” mean?

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How Do You Communicate with a Network Element When the Network is Down?

Wednesday, September 22nd, 2010

Given enough time, just about any computer network will eventually crash; that’s just the nature of networks. Ideally, your network shouldn’t crash on a regular basis, but when it does go down, how do you communicate with remote network elements in order to get the network up and running again? In cases like this, obviously, you can’t communicate with a problematic, router, server or switch via a normal network connection … but that still doesn’t mean that communication with a remote network device is impossible.

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Dial Up Internet Connection Keeper

Wednesday, September 15th, 2010

This looks like it could be a useful tool for those who rely on dial-up, out-of-band connections.

Dial up Internet users have to cope with several Internet connection related problems that their broadband brethren do not have to deal with at all. A major problem for instance is that the connection will be dropped after a specific amount of inactivity. Inactivity in this case means that no data is send or requested in that time. This happens for instance if the user opens an article on a website and begins reading it. In that time, no data is transferred to the ISP. The user may notice the dropped connection on the next click on a link, or request of a web page.

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Struggling Internet Pioneer AOL Turns 25

Tuesday, May 25th, 2010

When you think back to the early days of the internet, it’s really kind of amazing to see which companies survived, and which didn’t …

In a year steeped in significant anniversaries for tech companies, one that has been largely ignored is the 25th of online pioneer AOL.

Today, the company originally known as Quantum Computer Services, which introduced millions of Americans to the Internet, is still around but not what it used to be.

Sales are declining and its subscriber base is dwindling as it copes with a slide in online advertising revenue and tries to recast itself amid stiffening competition.

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