Network communications between virtual machines?

December 28th, 2009

If I’m running multiple virtual machines (VMware) on one physical server host, and wanted to test an IDS with them. If the VMs are sending/receiving data to and from each other, does it leave the physical host, go out onto the network, or does it stay on the host? If all VMs are using the same physical NIC from the host, what MAC address problems come up on the switch?

When you set the VM instance to a Bridged Network Mode (rather than a NAT) it creates a bogus MAC address when you bind the virtual NIC to the Physical NIC and the DHCP server or switch will assign the VM’s virtual NIC an IP address.

Both VMWare and VirtualBox create a a vitrual loopback NIC on their host OS but this is used for NAT mode in VMs and traffic in Bridged mode should router through the switch. I may be wrong, but you can check this by looking at the number of hops traveled in a ping (look at TTL reduction)

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Posted by Beny Lam and filed under virtual server hosting | 1 Comment »

December 19th, 2009

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December 1st, 2009

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How can I set up a server to host my websites at home?

November 23rd, 2009

I’m using dreamhost to host about 10 low traffic websites. One of them has a very large SQL database that requires a good bit of RAM to function properly, and I’m paying for two separate virtual private servers plus my regular yearly hosting fees. I want to set up a server at home on a 6.0MB internet connection, but don’t know where to start. I want to spend $200-400 (not even sure this is realistic). I have a spare computer that has plenty of RAM and is up to date, but I don’t know if you can just take any computer and install a server operating system and run with it. What do I need to do?

Check out:
http://www.howtoforge.com/

They have lots of howtos to set up web servers, complete with databases, email, ftp, dns, etc.
It depends if you can use MySQL as a database.

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Where can i find an external server to Host Apache?

November 18th, 2009

I recently set up XAMMP on my PC, And i understand that my PC is Vulnerable to exploits. So i read on a forum , that you can use a spare PC, But i dont want a 1970’s Bulky box sitting in my room holding apache. Are there any external server’s just for home use? I’ve looked on ebay but im stuck as to which will work/wont work.

P.S, i dont want to use Virtual servers or hosting, I want a Physical Object.

If you don’t want a box sitting in your room, you need make friends with someone who does or pay for professional webhosting. It’s dirt cheap nowadays, so you might as well pay for it and save yourself the headache of updates and hardware failures and changing IPs and DNS and all that.

On the other hand, if you have an old PC, or if you buy one from ebay, you might as well install LAMP (linux, apache, php, mysql) (free) and have it sitting in your room somewhere. A modern LAMP install is nearly invincible to hackers unless you start changing settings. You don’t need a keyboard or mouse or monitor once it’s set up. My box just sits under my desk and keeps my feet warm, and I do everything I need to via remote administration (SSH). Webserving needs very little processing power, so a 1 GHz box with 500 MB of RAM would be more than enough. This has an advantage over webhosting services because you can play with apache plugins and start up weird servers like squid and irc.

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November 2nd, 2009

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Web Server with Virtual Hosting?

October 30th, 2009

Does anyone know if there is a inexpensive or free server, besides apache, that has virtual hosting, and is easy to configure. I checked all over Google and couldn’t find anything.
Thanks in Advance

Nginx

http://nginx.net

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Which hosting to buy?

October 24th, 2009

I am launching a youtube clone. I expect that after a few days atleast 50 people will be online on my website each and every time. I heard that simple shared hosting plans don’t allow more than 20 users to be online on the server at a time. I am not sure about that info.
Please let me know whether I should buy a simple shared hosting plan, a virtual private server, a semi dedicated server or a dedicated server? I don’t have money for dedicated server monthly costs.
Plz help

Go with the VPS. Decent performance at a good price…
https://secure1.inmotionhosting.com/cgi-bin/gby/clickthru.cgi?id=nlitke37&page=8

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Paying for Isp Internet Access

October 20th, 2009

Choosing ISP services can be real tricky and the rule of thumb is to pay for those services that you only need. Instead of plunking down change for all the bells and whistles. The typical small business web-site, four to seven pages, could choose a virtual hosting service with multiple email addresses, cgi-bin access and a T3 connection from the Internet for $19 to $27 per month.

Most small businesses pick the managed server hosting packages which could range from $3.95 a month to $20 a month. As stated before, these hosting packages have all the administrative support that you need and all you have to worry about is the development of your web-site. You are given an FTP client to load your site to the internet.

Socket Security Certificates cost extra for secure transactions of the financial type through your web page and you expect to pay at least $40 to $80 per month. The setup fees can be expensive and cost as much as $55, and sometimes more if you order special features. Large companies and high volume web sites pay more for certain types of services.

Shop around and get the best deal for your business. You can get web hosting through the internet from anywhere but you have to really study the ISP’s and see what they offer.

A big concern in choosing an ISP should be the response time in case a server goes down. How does the server respond during high traffic times on the server? You would have to ask the ISP representative what their percentage ranking is as far as server downtime.

You can find some of these rankings on the internet by going to cnet.com or use the Google search engine to rate the top ten ISP providers that have the best percentage of what the industry calls, “up” time according to their servers.

John Ugoshowa
http://www.articlesbase.com/web-hosting-articles/paying-for-isp-internet-access-134863.html

Posted by Beny Lam and filed under virtual server hosting | 3 Comments »

Paying for Isp Internet Access

October 20th, 2009

Choosing ISP services can be real tricky and the rule of thumb is to pay for those services that you only need. Instead of plunking down change for all the bells and whistles. The typical small business web-site, four to seven pages, could choose a virtual hosting service with multiple email addresses, cgi-bin access and a T3 connection from the Internet for $19 to $27 per month.

Most small businesses pick the managed server hosting packages which could range from $3.95 a month to $20 a month. As stated before, these hosting packages have all the administrative support that you need and all you have to worry about is the development of your web-site. You are given an FTP client to load your site to the internet.

Socket Security Certificates cost extra for secure transactions of the financial type through your web page and you expect to pay at least $40 to $80 per month. The setup fees can be expensive and cost as much as $55, and sometimes more if you order special features. Large companies and high volume web sites pay more for certain types of services.

Shop around and get the best deal for your business. You can get web hosting through the internet from anywhere but you have to really study the ISP’s and see what they offer.

A big concern in choosing an ISP should be the response time in case a server goes down. How does the server respond during high traffic times on the server? You would have to ask the ISP representative what their percentage ranking is as far as server downtime.

You can find some of these rankings on the internet by going to cnet.com or use the Google search engine to rate the top ten ISP providers that have the best percentage of what the industry calls, “up” time according to their servers.

John Ugoshowa
http://www.articlesbase.com/web-hosting-articles/paying-for-isp-internet-access-134863.html

Posted by Beny Lam and filed under virtual server hosting | 3 Comments »