Ask Tony Archive

  • In my recent review of KEMP’s new LoadMaster software, which includes Web Application Firewall capabilities, Ofer Shezaf (from breach.com) had this to say in the comments section: Systems supporting only...

    Web Application Firewall: What’s In A Name?

    In my recent review of KEMP’s new LoadMaster software, which includes Web Application Firewall capabilities, Ofer Shezaf (from breach.com) had this to say in the comments section: Systems supporting only...

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  • Apologies for the LOLcatspeak.  I’m incapable of helping myself. The driving force behind Layer 7 persistence (keeping an individual user tied to a specific server in a server group based...

    Mega Proxy Not So Mega, Akshually

    Apologies for the LOLcatspeak.  I’m incapable of helping myself. The driving force behind Layer 7 persistence (keeping an individual user tied to a specific server in a server group based...

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  • It’s been about 6 months since the last load balancing/application delivery survey, so I think it’s high time we did another one. So here’s your chance to contribute to the...

    New Survey

    It’s been about 6 months since the last load balancing/application delivery survey, so I think it’s high time we did another one. So here’s your chance to contribute to the...

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  • There was a post today on the lb-l mailing list asking about alternatives to Cisco’s CSS. This is part of a trend I’ve noticed lately, where people who have an...

    Cisco CSS Replacements

    There was a post today on the lb-l mailing list asking about alternatives to Cisco’s CSS. This is part of a trend I’ve noticed lately, where people who have an...

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  • You’re stumped. There’s a problem with your infrastructure, and you’re not positive what it is. You checked a few things out, but the symptoms befuddle you. You’re pretty sure it’s...

    Troubleshoot Any Load Balancing Ailment: End-to-End Connectivity

    You’re stumped. There’s a problem with your infrastructure, and you’re not positive what it is. You checked a few things out, but the symptoms befuddle you. You’re pretty sure it’s...

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  • One issue that trips up people when diagnosing load balancer problems is they see a connection has been made to a virtual service, so it looks like they’re getting through...

    Think You’re Connected? Think Again

    One issue that trips up people when diagnosing load balancer problems is they see a connection has been made to a virtual service, so it looks like they’re getting through...

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  • When I’m diagnosing load balancing issues, there are three really critical tools I use: TCPDump HTTP Header dump (such as Live HTTP Headers) Telnet Yup, telnet. I don’t know about...

    BIG-IP V4 Test Script

    When I’m diagnosing load balancing issues, there are three really critical tools I use: TCPDump HTTP Header dump (such as Live HTTP Headers) Telnet Yup, telnet. I don’t know about...

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  • You’re an application developer. You work in a world of untyped variables, debugging, and hitting reload over, and over, and over, and over again, all in the name of churning...

    What Application Developers Need To Know About Load Balancers

    You’re an application developer. You work in a world of untyped variables, debugging, and hitting reload over, and over, and over, and over again, all in the name of churning...

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  • I got this email today from Don Keller in New Orleans regarding PHP interacting with a load balancer: I read somewhere that the load balancer you run must support sessions,...

    PHP and Load Balancers

    I got this email today from Don Keller in New Orleans regarding PHP interacting with a load balancer: I read somewhere that the load balancer you run must support sessions,...

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  • I get a lot of questions on what’s the best load balancer to choose. There are currently over 20 vendors too choose from, so buyers can experience a little bit...

    How To Choose A Load Balancer

    I get a lot of questions on what’s the best load balancer to choose. There are currently over 20 vendors too choose from, so buyers can experience a little bit...

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