Re: Backup Web Server
Rizal, Check out HA (High Availability) http://linux-ha.org Pete -- http://www.elbnet.com ELB Internet Service, Inc. Web Design, Computer Consulting, Internet Hosting [EMAIL PROTECTED] wrote: Can anyone pls tell me how to setup a Backup Web Server..meaning if the primary Web Server fails, it will automatically go to a seperate Web Server. ex. Home User - www.abc.com Server Unit 1 - www.abc.com : but if the unit bogs down it will go to, Server Unit 2 - www.abc.com Can this be possible? Rizal If you think you play too much, play more -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Backup Web Server
- Original Message - From: [EMAIL PROTECTED] To: Russell Coker [EMAIL PROTECTED] Cc: Jason Lim [EMAIL PROTECTED]; Katim S. Touray [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Monday, November 25, 2002 6:12 PM Subject: Backup Web Server Haha I wonder why you choose to send your email to us select few? ;-) Home User - www.abc.com Server Unit 1 - www.abc.com : but if the unit bogs down it will go to, Server Unit 2 - www.abc.com Can this be possible? Rizal Sure... tens of thousands of dollars in equipment can be bought to do exactly that (check out Cisco and others). What you're talking about is load balancing... it spreads the load out over 2 servers. The thing tho.. how does Server Unit 2 know that Server Unit 1 is bogged down? How does it then take some of the traffic? How are sessions maintained that are already established? The cheapest/easiest way would be to do round robin DNS. It certainly isn't elegant and won't distribute load evenly, but it's the easiest way in your case (i won't even discuss heartbeat, since you need to ask this question in the first place, but feel free to do a Google search). -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Backup Web Server
cluster it Thing On Mon, 25 Nov 2002 20:12, [EMAIL PROTECTED] wrote: Can anyone pls tell me how to setup a Backup Web Server..meaning if the primary Web Server fails, it will automatically go to a seperate Web Server. ex. Home User - www.abc.com Server Unit 1 - www.abc.com : but if the unit bogs down it will go to, Server Unit 2 - www.abc.com Can this be possible? Rizal If you think you play too much, play more -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Backup Web Server
cluster it, when one box goes down, its backup takes up that IP Thing On Mon, 25 Nov 2002 20:12, [EMAIL PROTECTED] wrote: Can anyone pls tell me how to setup a Backup Web Server..meaning if the primary Web Server fails, it will automatically go to a seperate Web Server. ex. Home User - www.abc.com Server Unit 1 - www.abc.com : but if the unit bogs down it will go to, Server Unit 2 - www.abc.com Can this be possible? Rizal If you think you play too much, play more -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Backup Web Server
Theres a couple of ways you can do this. 1) round robin dns : 2 servers with their own IP's, each serving up the website. If one goes down, you still get a 50% success rate. 2) VRRP via keepalived - http://www.keepalived.org/ : 2 servers, 1 real floating IP that is bound to the active server. If the active server dies, the IP's are picked up by the standby server and keeps on going. 3) LVS ( Linux Virtual Server ) http://www.linuxvirtualserver.org/ : This is the most involved setup but will also give you the most scalability and availabilty by creating farms of local servers that the inbound requests are balanced across. It can also do enhanced checks on the local servers to make sure that only healthy nodes are answering requests. On Mon, 25 Nov 2002 [EMAIL PROTECTED] wrote: Can anyone pls tell me how to setup a Backup Web Server..meaning if the primary Web Server fails, it will automatically go to a seperate Web Server. ex. Home User - www.abc.com Server Unit 1 - www.abc.com : but if the unit bogs down it will go to, Server Unit 2 - www.abc.com Can this be possible? Rizal If you think you play too much, play more -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] [-] Steve Mickeler [ [EMAIL PROTECTED] ] [|] Todays root password is brought to you by /dev/random [+] 1024D/9AA80CDF = 4103 9E35 2713 D432 924F 3C2E A7B9 A0FE 9AA8 0CDF -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Backup Web Server
On Mon, Nov 25, 2002 at 02:17:22PM -0500, Steve Mickeler wrote: Theres a couple of ways you can do this. 1) round robin dns : 2 servers with their own IP's, each serving up the website. If one goes down, you still get a 50% success rate. 2) VRRP via keepalived - http://www.keepalived.org/ : 2 servers, 1 real floating IP that is bound to the active server. If the active server dies, the IP's are picked up by the standby server and keeps on going. 3) LVS ( Linux Virtual Server ) http://www.linuxvirtualserver.org/ : This is the most involved setup but will also give you the most scalability and availabilty by creating farms of local servers that the inbound requests are balanced across. It can also do enhanced checks on the local servers to make sure that only healthy nodes are answering requests. You make it sound as if #2 and #3 are disconnected. But reading the web site for #2 makes it sound as if it only works *with* LVS. Is that not true? Jeremy -- Jeremy D. Zawodny | Perl, Web, MySQL, Linux Magazine, Yahoo! [EMAIL PROTECTED] | http://jeremy.zawodny.com/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Backup Web Server
Can anyone pls tell me how to setup a Backup Web Server..meaning if the primary Web Server fails, it will automatically go to a seperate Web Server. ex. Home User - www.abc.com Server Unit 1 - www.abc.com : but if the unit bogs down it will go to, Server Unit 2 - www.abc.com Can this be possible? Rizal If you think you play too much, play more -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
