It would appear that gigabit LAN is not! In fact it often runs at the same speed as 100Mbps LAN. Let's look at why exactly.

After configuring your network you can use the ifconfig command to see what speeds the LAN is connected. Even though 1000Mbps is reported by the card, the reality is that the overall throughtput may well be ~100Mpbs. You can try copying a large file using scp to demonstrate this.

As it turns out, in order to use a gigabit LAN you need to use CAT6 cables. CAT5 and CAT5E are not good enough. End result, the ethernet cards throttle back the speed to reduce dropped packets and errors.

You can find a good article here titled Squeeze Your Gigabit NIC for Top Performance. After tuning up the TCP parameters i found that it made no dfifference. The principal reasons behind low gigabit ethernet performance can be summed up as follows.

1. Need to use CAT6 cables
2. Slow Disk speed
3. Limitations of the PCI bus which the gigabit ethernet cards use

You can get an idea about the disk speed using the hdparm command:

Display the disk partitions and choose the main linux partition which has the / filesystem.

# fdisk -l

Then get disk cache and disk read statistics:

# hdparm -Tt /dev/sda0

On my desktop system the sata disk perfomance is a limiting factor. These were the results:

/dev/sda1:
Timing cached reads:   9984 MB in  2.00 seconds = 4996.41 MB/sec
Timing buffered disk reads:   84 MB in  3.13 seconds =  58.49 MB/sec

Well, that equates to a raw disk read speed of 58.49 * 8 = 467Mbps which is half the speed of a gigabit LAN.

So.. NAS storage with lots of memory looks to be the way to go... If you use the right cables!

• Warnings
• Headers
• Icon set 1
• Icon set 2
• Icon set 3
• Tooltips
• Highlights
• Code
• Unordered lists
• Ordered lists
• Abbrs and acronyms
• Definition lists
• Legends
• Dropcaps
• Floated blocks
• Other span blocks
• Blockquotes
• Tables

Warnings

This is a sample info message. Use <p class="gkInfo1">Your info message goes here!</p>.

This is a sample tips message. Use <p class="gkTips1">Your tips goes here!</p>.

This is a sample warning message. Use <p class="gkWarning1">Your warning message goes here!</p>.

This is a sample info message. Use <p class="gkInfo2">Your info message goes here!</p>.

This is a sample tips message. Use <p class="gkTips2">Your tips goes here!</p>.

This is a sample warning message. Use <p class="gkWarning2">Your warning message goes here!</p>.

This is a sample info message. Use <p class="gkInfo3">Your info message goes here!</p>.

This is a sample tips message. Use <p class="gkTips3">Your tips goes here!</p>.

This is a sample warning message. Use <p class="gkWarning3">Your warning message goes here!</p>.

This is a sample info message. Use <p class="gkInfo4">Your info message goes here!</p>.

This is a sample tips message. Use <p class="gkTips4">Your tips goes here!</p>.

This is a sample warning message. Use <p class="gkWarning4">Your warning message goes here!</p>.

This is a sample info message. Use <p class="gkInfo5">Your info message goes here!</p>.

This is a sample tips message. Use <p class="gkTips5">Your tips goes here!</p>.

This is a sample warning message. Use <p class="gkWarning5">Your warning message goes here!</p>.

Headers

This is heading 1

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer semper egestas nunc in volutpat. Fusce adipiscing velit ac eros tempor iaculis. Phasellus venenatis mollis augue, non posuere odio placerat in. Etiam volutpat ultrices lectus. Fusce eu felis erat. Donec congue interdum elit, sed ornare magna convallis lacinia. In hac habitasse platea dictumst. Mauris volutpat consectetur accumsan.

This is heading 2

Cras diam justo, sodales quis lobortis sed, lobortis vel mauris. Sed a mollis nunc. Quisque semper condimentum lectus, eget laoreet ipsum auctor et. Quisque sagittis luctus augue, id fringilla enim euismod quis. Nullam blandit, elit at euismod rutrum, tortor nibh posuere mauris, in volutpat diam ante ac dui. Sed velit massa, imperdiet placerat tristique et, consectetur a lorem. Praesent aliquet turpis in quam tempor eu pulvinar nibh luctus.

This is heading 3

Vivamus rhoncus arcu sit amet est tristique convallis nec vel eros. Vestibulum euismod luctus velit quis porta. Aliquam varius placerat mauris sed vehicula. Integer porta facilisis sapien, in tempus lorem mattis molestie. Suspendisse potenti. Praesent quis diam non dolor convallis mattis eu id nulla.

This is heading 4

Proin urna erat, egestas vel consectetur at, accumsan at purus. Donec est risus, facilisis dignissim placerat nec, euismod lacinia nisi. Nam ac sem sed quam sollicitudin condimentum et eu neque. Nunc enim urna, ultricies ac mollis pretium, imperdiet hendrerit massa. Sed eleifend felis sed tellus cursus lacinia. Aenean venenatis aliquet euismod. Nam quis turpis tellus, vitae malesuada neque.

This is a headline.

This is a subheadline.

Use <p class="gkHeadling">for headline</p>.Use <p class="gkSubHeadline">for subheadline</p>.Proin urna erat, egestas vel consectetur at, accumsan at purus. Donec est risus, facilisis dignissim placerat nec, euismod lacinia nisi. Nam ac sem sed quam sollicitudin condimentum et eu neque. Nunc enim urna, ultricies ac mollis pretium, imperdiet hendrerit massa. Sed eleifend felis sed tellus cursus lacinia. Aenean venenatis aliquet euismod. Nam quis turpis tellus, vitae malesuada neque.

This is a small headline

This is a large headline

Use <p class="gkHeadling">for headline</p>.Use <p class="gkSubHeadline">for subheadline</p>.Proin urna erat, egestas vel consectetur at, accumsan at purus. Donec est risus, facilisis dignissim placerat nec, euismod lacinia nisi. Nam ac sem sed quam sollicitudin condimentum et eu neque. Nunc enim urna, ultricies ac mollis pretium, imperdiet hendrerit massa. Sed eleifend felis sed tellus cursus lacinia. Aenean venenatis aliquet euismod. Nam quis turpis tellus, vitae malesuada neque.

Icon set 1

This is a sample audio message. Use <p class="gkAudio">Your audio message goes here!</p>.

This is a sample webcam message. Use <p class="gkWebcam">Your webcam goes here!</p>.

This is a sample email message. Use <p class="gkEmail">Your email message goes here!</p>.

This is a sample creditcard message. Use <p class="gkCreditcard">Your creditcart message goes here!</p>.

This is a sample feed message. Use <p class="gkFeed">Your feed goes here!</p>.

This is a sample help message. Use <p class="gkHelp">Your help message goes here!</p>.

This is a sample images message. Use <p class="gkImages">Your images message goes here!</p>.

This is a sample lock message. Use <p class="gkLock">Your webcam goes here!</p>.

This is a sample printer message. Use <p class="gkPrinter">Your printer message goes here!</p>.

This is a sample report message. Use <p class="gkReport">Your report message goes here!</p>.

This is a sample script message. Use <p class="gkScript">Your script goes here!</p>.

This is a sample time message. Use <p class="gkTime">Your time message goes here!</p>.

This is a sample user message. Use <p class="gkUser">Your user message goes here!</p>.

This is a sample world message. Use <p class="gkWorld">Your world goes here!</p>.

This is a sample cart message. Use <p class="gkCart">Your cart message goes here!</p>.

This is a sample cd message. Use <p class="gkCd">Your cd message goes here!</p>.

This is a sample chart_bar message. Use <p class="gkChartBar">Your chart_bar goes here!</p>.

This is a sample chart_line message. Use <p class="gkChartLine">Your chart_line message goes here!</p>.

This is a sample chart_pie message. Use <p class="gkChartPie">Your chart_pie message goes here!</p>.

This is a sample clock message. Use <p class="gkClock">Your clock goes here!</p>.

This is a sample cog message. Use <p class="gkCog">Your cog message goes here!</p>.

This is a sample coins message. Use <p class="gkCoins">Your coins message goes here!</p>.

This is a sample compress message. Use <p class="gkCompress">Your compress goes here!</p>.

This is a sample computer message. Use <p class="gkComputer">Your computer message goes here!</p>.

This is a sample cross message. Use <p class="gkCross">Your cross message goes here!</p>.

This is a sample disk message. Use <p class="gkDisk">Your disk goes here!</p>.

This is a sample error message. Use <p class="gkError">Your error message goes here!</p>.

This is a sample exclamation message. Use <p class="gkExclamation">Your exclamation message goes here!</p>.

This is a sample film message. Use <p class="gkFilm">Your film goes here!</p>.

This is a sample folder message. Use <p class="gkFolder">Your folder message goes here!</p>.

This is a sample group message. Use <p class="gkGroup">Your group message goes here!</p>.

This is a sample heart message. Use <p class="gkHeart">Your heart goes here!</p>.

This is a sample house message. Use <p class="gkHouse">Your house message goes here!</p>.

This is a sample image message. Use <p class="gkImage">Your image message goes here!</p>.

This is a sample information message. Use <p class="gkInformation">Your information message goes here!</p>.

This is a sample magnifier message. Use <p class="gkMagnifier">Your magnifier message goes here!</p>.

This is a sample money message. Use <p class="gkMoney">Your money goes here!</p>.

This is a sample new message. Use <p class="gkNew">Your new message goes here!</p>.

This is a sample note message. Use <p class="gkNote">Your note message goes here!</p>.

This is a sample page message. Use <p class="gkPage">Your page goes here!</p>.

This is a sample page_white message. Use <p class="gkPage_white">Your page_white message goes here!</p>.

This is a sample plugin message. Use <p class="gkPlugin">Your plugin message goes here!</p>.

This is a sample accept message. Use <p class="gkAccept">Your accept goes here!</p>.

This is a sample add message. Use <p class="gkAdd">Your add message goes here!</p>.

This is a sample camera message. Use <p class="gkCamera">Your camera message goes here!</p>.

This is a sample brick message. Use <p class="gkBrick">Your brick goes here!</p>.

This is a sample box message. Use <p class="gkBox">Your box message goes here!</p>.

This is a sample calendar message. Use <p class="gkCalendar">Your calendar message goes here!</p>.

Icon set 2

This is a sample audio message. Use <p class="gkAudioIs2">Your audio message goes here!</p>.

This is a sample email message. Use <p class="gkEmailIs2">Your email message goes here!</p>.

This is a sample feed message. Use <p class="gkFeedIs2">Your feed message goes here!</p>.

This is a sample images message. Use <p class="gkImagesIs2">Your images message goes here!</p>.

This is a sample lock message. Use <p class="gkLockIs2">Your lock message goes here!</p>.

This is a sample printer message. Use <p class="gkPrinterIs2">Your printer message goes here!</p>.

This is a sample time message. Use <p class="gkTimeIs2">Your time message goes here!</p>.

This is a sample user message. Use <p class="gkUserIs2">Your calendar message goes here!</p>.

This is a sample world message. Use <p class="gkWorldIs2">Your world message goes here!</p>.

YThis is a sample cart message. Use <p class="gkCartIs2">Your cart message goes here!</p>.

This is a sample cd message. Use <p class="gkCdIs2">Your cd message goes here!</p>.

This is a sample chart line message. Use <p class="gkChartLineIs2">Your chart line message goes here!</p>.

This is a sample chart pie message. Use <p class="gkChartPieIs2">Your calendar message goes here!</p>.

This is a sample clock message. Use <p class="gkClockIs2">Your clock message goes here!</p>.

This is a sample config message. Use <p class="gkCogIs2">Your config message goes here!</p>.

This is a sample computer message. Use <p class="gkComputerIs2">Your computer message goes here!</p>.

This is a sample error message. Use <p class="gkErrorIs2">Your error message goes here!</p>.

This is a sample exclamation message. Use <p class="gkExclamationIs2">Your exclamation message goes here!</p>.

This is a sample movie message. Use <p class="gkFilmIs2">Your movie message goes here!</p>.

This is a sample folder message. Use <p class="gkFolderIs2">Your folder message goes here!</p>.

This is a group calendar message. Use <p class="gkGroupIs2">Your group message goes here!</p>.

This is a sample house message. Use <p class="gkHouseIs2">Your house message goes here!</p>.

This is a sample image message. Use <p class="gkImageIs2">Your image message goes here!</p>.

This is a sample information message. Use <p class="gkInfromationIs2">Your information message goes here!</p>.

This is a sample magnifier message. Use <p class="gkMagnifierIs2">Your magnifier message goes here!</p>.

This is a sample money message. Use <p class="gkMoneyIs2">Your money message goes here!</p>.

This is a sample page message. Use <p class="gkPageIs2">Your page message goes here!</p>.

This is a sample camera message. Use <p class="gkCameraIs2">Your camera message goes here!</p>.

This is a calendar feed message. Use <p class="gkCalendarIs2">Your calendar message goes here!</p>.

This is a sample contact message. Use <p class="gkContactIs2">Your contact message goes here!</p>.

This is a sample facebook message. Use <p class="gkFacebookIs2">Your facebook message goes here!</p>.

This is a sample like it message. Use <p class="gkLikeItIs2">Your like it message goes here!</p>.

This is a sample twitter message. Use <p class="gkTwitterIs2">Your twitter message goes here!</p>.

This is a sample video message. Use <p class="gkVideoIs2">Your video message goes here!</p>.

This is a sample youtube message. Use <p class="gkYoutubeIs2">Your youtube message goes here!</p>.

Icon set 3

This is a sample audio message. Use <p class="gkAudioIs3">Your audio message goes here!</p>.

This is a sample camera message. Use <p class="gkCameraIs3">Your camera message goes here!</p>.

This is a sample lock message. Use <p class="gkLockIs3">Your lock message goes here!</p>.

This is a sample user message. Use <p class="gkUserIs3">Your user message goes here!</p>.

This is a sample cart message. Use <p class="gkCartIs3">Your cart message goes here!</p>.

This is a sample chart bar message. Use <p class="gkChartBarIs3">Your chart bar message goes here!</p>.

This is a sample config message. Use <p class="gkConfigIs3">Your config message goes here!</p>.

This is a sample configuration message. Use <p class="gkConfig2Is3">Your configuration message goes here!</p>.

This is a sample computer message. Use <p class="gkComputerIs3">Your computer message goes here!</p>.

This is a sample coffe message. Use <p class="gkCoffeIs3">Your coffe message goes here!</p>.

This is a sample cross message. Use <p class="gkCrossIs3">Your cross message goes here!</p>.

This is a sample error message. Use <p class="gkErrorIs3">Your error message goes here!</p>.

This is a sample house message. Use <p class="gkHouseIs3">Your house message goes here!</p>.

This is a sample information message. Use <p class="gkInformationIs3">Your inforation message goes here!</p>.

This is a sample magnifier message. Use <p class="gkMagnifierIs3">Your magnifier message goes here!</p>.

This is a sample page message. Use <p class="gkPageIs3">Your page message goes here!</p>.

This is a sample lock message. Use <p class="gkLockIs3">Your lock message goes here!</p>.

This is a sample camera message. Use <p class="gkCameraIs3">Your camera message goes here!</p>.

This is a sample star message. Use <p class="gkStarIs3">Your star message goes here!</p>.

This is a sample telephone message. Use <p class="gkTelephoneIs3">Your telephone message goes here!</p>.

Tooltips

Here are some examples of a ClassicThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own!, CriticalCriticalThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own!, HelpHelpThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own!, InformationInformationThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own! and WarningWarningThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own! CSS powered tooltip. This is just an example of what you can do so feel free to get creative and produce your own!

Highlights

This is a highlight phrase. Use <span class="gkHighlight1">Your highlight phrase goes here!</span>.

This is a highlight phrase. Use <span class="gkHighlight2">Your highlight phrase goes here!</span>.

This is a highlight phrase. Use <span class="gkHighlight3">Your highlight phrase goes here!</span>.

This is a highlight phrase. Use <span class="gkHighlight4">Your highlight phrase goes here!</span>.

Code

Below is a sample of <pre> or <div class="gkCode1">

#wrapper {
  position: relative;
  float: left;
  display: block;
}

Below is a sample of <div class="gkCode2">

Below is a sample of <div class="gkCode3"><h4>Name of your file</h4>Here goes your code</div>

Unordered lists

Types of unordered lists

Ordered lists

Types of ordered list:

<div class="gkNumber1"><p><span>here goes a number</span>and here text of element</p>

<div class="gkNumber2"><p><span>here goes a number</span>and here text of element</p>

Abbrs and acronyms

This is a sample of an abbreviation Dr. Use <abbr title="Here goes full word or phrase">here goes an abbreviation</abbr>

This is a sample of an acronym NATO. Use <acronym title="Here goes full phrase">here goes an acronym</abbr>

Definition lists

Below are samples of definition lists

<dl class="gkDef1"><dt>Here goes the word you're about to define</dt><dd>Here goes definition</dd></dl>

Butter

it is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins.

Dairy milk

is an opaque white liquid produced by the mammary glands of mammals (including monotremes). It provides the primary source of nutrition for newborn mammals before they are able to digest other types of food.

<dl class="gkDef2"><dt>Here goes the word you're about to define</dt><dd>Here goes definition</dd></dl>

Butter

it is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins.

Dairy milk

is an opaque white liquid produced by the mammary glands of mammals (including monotremes). It provides the primary source of nutrition for newborn mammals before they are able to digest other types of food.

<dl class="gkDef3"><dt>Here goes the word you're about to define</dt><dd>Here goes definition</dd></dl>

Butter

it is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins.

Dairy milk

is an opaque white liquid produced by the mammary glands of mammals (including monotremes). It provides the primary source of nutrition for newborn mammals before they are able to digest other types of food.

Legends

Dropcaps

This is a sample text with Dropcap. Use <p> <span class="gkDropcap1">t</span> to make the first letter larger. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend. Vivamus ullamcorper est id libero aliquam ullamcorper. Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut..</p>.

This is a sample text with Dropcap. Use <p> <span class="gkDropcap2">t</span> to make the first letter larger. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend. Vivamus ullamcorper est id libero aliquam ullamcorper. Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut..</p>.

This is a sample text with Dropcap. Use <p class="gkDropcap3"> <span class="gkDropcap3">t</span> to make the first letter larger. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend. Vivamus ullamcorper est id libero aliquam ullamcorper. Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut..</p>.

Floated blocks

Below are samples of text in which part of it is displayed in a separate block

<p> Here goes main part of the text <span class="gkBlockTextLeft">Block of text</span>rest of the text</p>

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue.Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut. Morbi cursus est vel velit hendrerit dictum.

<p> Here goes main part of the text <span class="gkBlockTextRight">Block of text</span>rest of the text</p>

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue.Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut. Morbi cursus est vel velit hendrerit dictum.

<p> Here goes main part of the text <span class="gkBlockTextCenter">Block of text</span>rest of the text</p>

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue.Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut. Morbi cursus est vel velit hendrerit dictum.

Other span blocks

This is a sample pin note. Use <span class="gkClear">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkClear-1">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkClear-2">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-1">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-2">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-3">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-4">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-5">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-6">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-7">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

Blockquotes

This is a sample quote text. Use < blockquote > Your quoted text goes here!< /blockquote >

This is a sample quote text. Use< blockquote><div class="gkBlockquote1"><div> Your quoted text goes here!< /div>< /div>< /blockquote >

This is a sample quote text. Use< blockquote><div class="gkBlockquote2"><div> Your quoted text goes here!< /div>< /div>< /blockquote >

This is a sample quote text. Use< blockquote><div class="gkBlockquote3"><div> Your quoted text goes here!< /div>< /div>< /blockquote >

This is a sample quote text. Use< blockquote><div class="gkBlockquote4"><div> Your quoted text goes here!< /div>< /div>< /blockquote >

Tables

Table Header (thead)
Table Footer (tfoot)
Column 1	Column 2
Cell 3 - part of tbody	Cell 4 - part of tbody
Cell 5 - part of tbody	Cell 6 - part of tbody
Cell 7 - part of tbody	Cell 8 - part of tbody

Table Header (thead)
Table Footer (tfoot)
Column 1	Column 2
Cell 1 - part of tbody	Cell 2 - part of tbody
Cell 3 - part of tbody	Cell 4 - part of tbody
Cell 5 - part of tbody	Cell 6 - part of tbody

Template additional styles

In order to get the video you have to use code like this:

<a class="gk_video_frame" href="http://www.vimeo.com/16274294" rel="mediabox[720 410]">
    <img src="/images/stories/demo/demo_video_1.png" border="0" alt="Video 1" />
    <span class="gk_vframe">Frame</span> 
    <span class="gk_voverlay">Overlay</span> 
    Watch the video 
</a>

As a href attribute you set the video address. In the rel attribute you can specify the video size. Image element is the thumbnail in the frame.

You can also create a blocks with icons. The structure is always similar - you have to change only second class near gk_block:

<div class="gk_block tablet">
<h3><a href="#">Mobile Ready</a></h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum</p>
</div>

Available blocks styles with classes:

Opening SSH to the outside world is a security risk. Here is how to restrict SSH access to certain IP addresses on a machine.

1. Edit the /etc/hosts.allow file to include these lines, assuming your machine is on the 192.168.2.x nonrouting IP block, and you want to enable an external address of 217.40.111.121 IP block: Remember to add the period on the end of each incomplete IP number. If you have another complete IP address or range, add a space and that range on the end.
   
   

   sshd,sshdfwd-X11: 192.168.2. 217.40.111.121

2. Edit your /etc/hosts.deny file to include this line:
   
   

   sshd,sshdfwd-X11:ALL 

3. These lines refuse SSH connections from anyone not in the IP address blocks listed.

Additionally you can restrict SSH access by username.

1. Edit the /etc/ssh/sshd_config file and add the following lines
   
   

   PermitRootLogin no
   AllowUsers      user1 user2 user3 etc
   PasswordAuthentication yes

Now restart the ssh daemon for these changes to take effect

service sshd restart