RISKFILTER SYSTEM MANAGEMENT CONSOLE

The RiskFilter Tab

5

Load balancing with RiskFilter

Once you have configured your RiskFilter cluster, you can set up load balancing using MX records:

1On the DNS server hosting your domain, create an MX record for each primary RiskFilter server using the same MX preference.

2Give the failover server a higher number. This will give it a lower preference.

Table 5-1 shows an example of MX preference assignments for load-balancing and failover using MX records.

Table 5-1Using MX Records for Load-Balancing

Mail Exchanger

IP Address

MX Preference

 

 

 

Site A

 

 

 

 

 

mx1.siteA.com

208.126.216.20

5

 

 

 

mx2.siteA.com

208.126.216.21

5

 

 

 

mx3.siteA.com

208.126.216.22

5

 

 

 

mx4.siteA.com

197.201.56.201

10

 

 

 

Site B

 

 

 

 

 

mx1.siteB.com

197.201.56.201

5

 

 

 

mx2.siteB.com

197.201.56.202

5

 

 

 

mx3.siteB.com

197.201.56.203

5

 

 

 

mx4.siteB.com

208.126.216.20

10

 

 

 

Figure 5-25Load balancing

SurfControl RiskFilter - E-mail V5.2.4

Administrator’s Guide 151

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Image 156
Surf Control 5.2.4 manual Load balancing with RiskFilter, 25Load balancing