VPN using LDAP Authentication

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below is an example configuration of a VPN using LDAP Authentication,…

Policy to filter outbound http requests

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There was a requirement from a client to filter outbound http…

Policy NAT example

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The below configuration is used for a example where the remote…

ssh login using private keys

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1. from your localmachine: [crayon-59eb8627afb07141781068/] 2.…

BigIP F5 LTM iRule replace pre-existing X-Forwarded-For headers

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The below iRule will look for an existing HTTP Header "X-Forwarded-For",…

BigIP F5 LTM Check HA Serial Cable Connection

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How to verify if the HA serial cable is connected: [crayo…

F5 LTM - Packet Sniffing HTTP Headers

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To confirm that an F5 is adding HTTP headers you can use the…

BigIP F5 LTM €œVLAN-Keyed Connections Auto last hop

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Please refer to the above diagram. Server A needs to access…

BigIP F5 LTM iRule Balancing Decision

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Change pool based on URI [crayon-59eb8627b2016924725943/] …

Cisco asa failover configuration example

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Below is example of a cisco asa failover configuration Primary…

Cisco ASA Rate Limit a VPN Tunnel

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This post is in relation to rate limiting traffic which traverses…

Block HTTP requests with specific User-agent

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Customer wants to block all HTTP requests going to 6.6.6.22 Only…

BigIP F5 LTM iRule URI based persistence

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The client requirement is to enable URI based persistence for…

BigIP LTM iRule redirect if pool servers unavailable

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Redirect request if servers not available [crayon-59eb8627bd4fb347576846/] …

BigIP F5 LTM iRule Setting HttpOnly flag on HTTP cookies

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Not all cookies returned by the clients' application have HttpOnly…

BigIP F5 LTM iRule Set 'secure' flag on HTTP cookies

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After a security scan, the client found out that some of the…

BigIP F5 LTM iRule Selective BackendSSL

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[crayon-59eb8627be0bb253306801/]

BigIP F5 LTM iRule SNAT based on source address

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Below is an example where SNAT based on source address will be…

BigIP F5 LTM iRule Rewriting HTTP values

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Simple URI rewrite [crayon-59eb8627be875558939632/] …

BigIP F5 LTM iRule Redirect examples

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Below are many different redirect examples [crayon-59eb8627bece1415463764/] …

BigIP F5 LTM iRule Rate limiting based on uri

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The below iRule is for Rate limiting based on uri. [crayo…

BigIP F5 LTM iRule Blocking requests based on country

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You need to block all connections coming from specific countries…

BigIP F5 LTM iRule blocking HTTP traffic based on referer

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Client wants to be able to block certain HTTP requests. Requests…

BigIP F5 LTM iRule Basic Authentication

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A client wants to authenticate traffic before allowing it to…

BigIP F5 iRule with image

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This article provides the necessary steps required to create…

BigIP F5 LTM iRule Selective SNAT

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If you have a client that wants to use their external VIP internally…

BigIP F5 LTM Verifying that a Certificate and Key Match

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Below is an example of how to verify that the Certificate and…

BigIP F5 LTM Auto Last Hop

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F5 Big-IP Auto Last Hop Here is a quick note on a not very…

BigIP F5 LTM TCP Profile for High Bandwidth

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The default TCP profiles are perfect in most cases such as websites.…

BigIP F5 LTM Monitor receive '200 OK' as the string

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The standard send string most commonly used will look like this: [crayon-59eb8627c18ec244206705/] This…