hosted by liquidweb


Go Back   Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : TCP Setting for High Performance
Reply

Forum Jump

TCP Setting for High Performance

Reply Post New Thread In Hosting Security and Technology Subscription
 
Send news tip View All Posts Thread Tools Search this Thread Display Modes
  #1  
Old 05-09-2010, 11:27 AM
mperkel mperkel is offline
Web Hosting Evangelist
 
Join Date: Jun 2001
Location: Gilroy CA.
Posts: 458
Question

TCP Setting for High Performance


Occasionally I'm seeing "possible SYN flooding on port xxx" when there no real attack going on. What I'd like to do is some Linux tuning to increase the capacity so that it can handle more TCP activity. These's so many settings that my head is swimming.

I'm also running OpenVZ virtualization in case that makes a difference.
Thanks in advance.

__________________
Marc Perkel
/root
http://www.junkemailfilter.com
marc@perkel.com



Sponsored Links
  #2  
Old 05-09-2010, 04:48 PM
khunj khunj is offline
Aspiring Evangelist
 
Join Date: Mar 2009
Location: /home/khunj
Posts: 381
This is just a warning message, the kernel should start sending SYN cookies, if they are enabled.
As long as you don't see some "dropping xx packets" messages you are fine.
Look at your SYN backlog and increase it if it is too low:

Code:
# cat /proc/sys/net/ipv4/tcp_max_syn_backlog
Usually the value is 1024, you can double or triple it.
You can do that only from the HN, not from a container.

__________________
NinTechNet
★ NinjaMonitoring : Monitor your website for suspicious activities.
★ NinjaFirewall : Web Application Firewall for PHP (WordPress plugin available).

  #3  
Old 05-10-2010, 12:21 AM
mperkel mperkel is offline
Web Hosting Evangelist
 
Join Date: Jun 2001
Location: Gilroy CA.
Posts: 458
Thanks - for spam filtering - is there any other parameters that I should adjust?

__________________
Marc Perkel
/root
http://www.junkemailfilter.com
marc@perkel.com

Sponsored Links
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Aquarius Storage High Performance + High Reliability Web Hosting at 3.50 per month!!! AquariusStorage Shared Hosting Offers 0 04-04-2009 11:22 PM
Aquarius Storage High Performance + High Reliability web hosting, @ 3.50 per month! AquariusStorage Shared Hosting Offers 0 03-27-2009 10:41 PM
KRYPT.COM High Performance / High Bandwidth VPS / 32 & 64 Bit OS Support $15 krypttim VPS Hosting Offers 0 09-22-2008 02:37 PM
High TCP Bandwitdt Usage. Please Help WWWhost Hosting Security and Technology 3 04-20-2004 03:53 AM

Related posts from TheWhir.com
Title Type Date Posted
Australian Ecommerce Host Anchor Readies New OpenStack Managed Cloud Web Hosting News 2014-07-25 06:47:00
Reliam Inc. Listing 2014-01-22 18:11:01
INetU Launches High Performance Cloud Storage Solution Web Hosting News 2013-08-06 13:09:57
Web Host ServerHub Launches High Availability Hosting Web Hosting News 2013-02-04 09:00:54
SolidFire Announces Availability of SSD Storage Systems for Cloud Hosting Providers Web Hosting News 2012-11-13 08:46:24


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes
Postbit Selector

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump
Login:
Log in with your username and password
Username:
Password:



Forgot Password?
Advertisement:
Web Hosting News:



 

X

Welcome to WebHostingTalk.com

Create your username to jump into the discussion!

WebHostingTalk.com is the largest, most influentual web hosting community on the Internet. Join us by filling in the form below.


(4 digit year)

Already a member?