FAQ

Frequently Asked Questions

Welcome to the Apache Traffic Server FAQ.
Below is a list of frequently asked questions pertaining to Apache Traffic Server.

What Platforms does Traffic Server support

Linux is the primary platform supported.
For other distributions such as FreeBSD, Mac OSX and OpenSolaris see http://svn.apache.org/repos/asf/trafficserver/traffic/trunk/README

'sudo make install' fails with '/usr/bin/install: invalid group nobody'

The default installed user is 'nobody' and the default group is 'nobody'.
You can specify the installed group via:

shell

# It is very important to do a clean uninstall and distclean before
# re-configuring, re-building, and re-installing after the failed
# first install.
sudo make uninstall
sudo make distclean
configure i.e './configure --with-group=nogroup'

How do I enable forward proxy mode?

Forward proxy mode is not enabled out of the box for security reasons. When enabling any proxy on the internet, you want to make sure you observe pertinent security restrictions. Having an open proxy available to internet users is a bad thing. If you understand this and are sure you know what you are doing, go ahead and enable:
trafficserver/records.config
```
    # Set this variable to 1 if you want Traffic Server to serve 
    # requests only from origin servers listed in the mapping rules
    # of the remap.config file. If a request does not match, then 
    # the browser will receive an error.
    CONFIG proxy.config.url_remap.remap_required INT 0
```

How do I access POST data in a Traffic Server plugin

You use a transformation plugin. Details are available by visiting the Traffic Server SDK guide

How do I enable DNS lookups?

Edit records.config and enable round_robin along with specifying your nameservers. For example:

trafficserver/records.config

    # Enables (1) or disables (0) DNS server round-robin.
    CONFIG proxy.config.dns.round_robin_nameservers INT 1

    #The DNS servers.
    CONFIG proxy.config.dns.nameservers STRING 10.0.0.1 192.172.0.4

How do I enable SSL between Client/ATS/Origin end points?

TODO

What happens if Traffic Server crashes?

it is automatically restarted by the Traffic Manager
if you turn of cores (limit coredumpsize 0) you can prevent disk full errors on crash loops

Do you have any sample configuration files?

Yes we do, see the sample configuration page.

How do i profile Traffic Server's performance

Visit the Profiling page for more information.

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