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- PPPPRRRROOOOXXXXYYYYMMMMNNNNGGGGRRRR((((1111)))) XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....6666)))) PPPPRRRROOOOXXXXYYYYMMMMNNNNGGGGRRRR((((1111))))
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- NNNNAAAAMMMMEEEE
- proxymngr - proxy manager service
-
- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- pppprrrrooooxxxxyyyymmmmnnnnggggrrrr [----ccccoooonnnnffffiiiigggg _f_i_l_e_n_a_m_e] [----ttttiiiimmmmeeeeoooouuuutttt _s_e_c_o_n_d_s] [----rrrreeeettttrrrriiiieeeessss #]
- [----vvvveeeerrrrbbbboooosssseeee]
-
- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- The proxy manager (proxymngr) is responsible for resolving
- requests from xfindproxy (and other similar clients),
- starting new proxies when appropriate, and keeping track of
- all of the available proxy services. The proxy manager
- strives to reuse existing proxies whenever possible.
-
- There are two types of proxies that the proxy manager deals
- with, _m_a_n_a_g_e_d and _u_n_m_a_n_a_g_e_d proxies.
-
- A _m_a_n_a_g_e_d proxy is a proxy that is started ``on demand'' by
- the proxy manager.
-
- An _u_n_m_a_n_a_g_e_d proxy, on the other hand, is started either at
- system boot time, or manually by a system administrator.
- The proxy manager is made aware of its existence, but no
- attempt is made by the proxy manager to start unmanaged
- proxies.
-
- The command line options that can be specified to pppprrrrooooxxxxyyyymmmmnnnnggggrrrr
- are:
-
- ----ccccoooonnnnffffiiiigggg Used to override the default proxymngr config file.
- See below for more details about the config file.
-
- ----ttttiiiimmmmeeeeoooouuuutttt
- Sets the number of seconds between attempts made by
- the proxy manager to find an unmanaged proxy. The
- default is 10.
-
- ----rrrreeeettttrrrriiiieeeessss
- Sets the maximum number of retries made by the proxy
- manager to find an an unmanaged proxy. The default
- is 3.
-
- ----vvvveeeerrrrbbbboooosssseeee
- Causes various debugging and tracing records to be
- displayed as requests are received and proxies are
- started.
-
- RRRRuuuunnnnnnnniiiinnnngggg tttthhhheeee PPPPrrrrooooxxxxyyyy MMMMaaaannnnaaaaggggeeeerrrr
- While it is possible to start the proxy manager by hand, a
- single proxy manager can manage proxies for many users, so
- it is most effective to configure it as a system daemon. To
- configure the proxy manager daemon to be started at system
-
-
-
- Page 1 (printed 10/3/02)
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-
-
- startup and stopped at system shutdown, execute the command:
-
- chkconfig proxymngr on
-
- To stop the proxy manager daemon on a running system,
- execute the command:
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- /etc/init.d/proxymngr stop
-
- Be aware that stopping the proxy manager will normally kill
- all managed proxies as well.
-
- To start the proxy manager daemon on a running system,
- execute the command:
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- /etc/init.d/proxymngr start
-
- Local users on the system where the proxy manager is running
- can configure xfindproxy to access the proxy manager daemon
- by setting the following variable in their shell
- environment:
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- PROXY_MANAGER=local/proxyhost:/tmp/.ICE-unix/6500,tcp/proxyhost:6500
-
- where "proxyhost" is the network name of the system where
- the proxy manager is running. Remote users can access the
- proxy manager by using the latter address:
-
- PROXY_MANAGER=tcp/proxyhost:6500
-
- An alternative to using the shell environment variable is to
- specify either address using the ----mmmmaaaannnnaaaaggggeeeerrrr option to
- xfindproxy:
-
- xfindproxy -manager tcp/proxyhost:6500 ...
-
- PPPPrrrrooooxxxxyyyy MMMMaaaannnnaaaaggggeeeerrrr CCCCoooonnnnffffiiiigggg FFFFiiiilllleeee
- The proxy manager maintains a local configuration file
- describing the proxy services available. This configuration
- file is installed in /usr/lib/X11/proxymngr/pmconfig during
- the installation of proxymngr. The location of the
- configuration file can be overwritten using the ----ccccoooonnnnffffiiiigggg
- command line option.
-
- Aside from lines starting with an exclamation point for
- comments, each line of the configuration file describes
- either an unmanaged or managed proxy service.
-
- For unmanaged proxies, the format is:
-
- <service-name> unmanaged <proxy-address>
-
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- Page 2 (printed 10/3/02)
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-
-
-
- service-name is the name of the unmanaged proxy service, and
- must not contain any spaces, for example ``XFWP''.
- service-name is case insenstive.
-
- proxy-address is the network address of the unmanaged proxy.
- The format of the address is specific to the service-name.
- For example, for the ``XFWP'' service, the proxy-address
- might be ``firewall.x.org:100''.
-
- If there is more than one entry in the config file with the
- same unmanaged service-name, the proxy manager will try to
- use the proxies in the order presented in the config file.
-
- For managed proxies, the format is:
-
- <service-name> managed <command-to-start-proxy>
-
- service-name is the name of the managed proxy service, and
- must not contain any spaces, for example ``LBX''. service-
- name is case insensitive.
-
- command-to-start-proxy is the command executed by the proxy
- manager to start a new instance of the proxy. If command-
- to-start-proxy contains spaces, the complete command should
- be surrounded by single quotes. If desired, command-to-
- start-proxy can be used to start a proxy on a remote
- machine. The specifics of the remote execution method used
- to do this is not specified here.
-
- EEEEXXXXAAAAMMMMPPPPLLLLEEEE
- Here is a sample configuration file:
-
- ! proxy manager config file
- !
- ! Each line has the format:
- ! <serviceName> managed <startCommand>
- ! or
- ! <serviceName> unmanaged <proxyAddress>
- !
- lbx managed /usr/bin/X11/lbxproxy
- !
- ! substitute site-specific info
- xfwp unmanaged firewall:4444
-
-
- PPPPRRRROOOOXXXXYYYY MMMMAAAANNNNAAAAGGGGEEEERRRR DDDDEEEETTTTAAAAIIIILLLLSSSS
- When the proxy manager gets a request from xfindproxy (or
- another similar client), its course of action will depend on
- the service-name in question.
-
- For a managed proxy service, the proxy manager will find out
- if any of the already running proxies for this service can
-
-
-
- Page 3 (printed 10/3/02)
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- PPPPRRRROOOOXXXXYYYYMMMMNNNNGGGGRRRR((((1111)))) XXXX VVVVeeeerrrrssssiiiioooonnnn 11111111 ((((RRRReeeelllleeeeaaaasssseeee 6666....6666)))) PPPPRRRROOOOXXXXYYYYMMMMNNNNGGGGRRRR((((1111))))
-
-
-
- handle a new request. If not, the proxy manager will
- attempt to start up a new instance of the proxy (using the
- command-to-start-proxy found in the config file). If that
- fails, an error will be returned to the caller.
-
- For an unmanaged proxy service, the proxy manager will look
- in the config file to find all unmanaged proxies for this
- service. If there is more than one entry in the config file
- with the same unmanaged service-name, the proxy manager will
- try to use the proxies in the order presented in the config
- file. If none of the unmanged proxies can satisfy the
- request, the proxy manager will timeout for a configurable
- amount of time (specified by ----ttttiiiimmmmeeeeoooouuuutttt or default of 10) and
- reattempt to find an unmanaged proxy willing to satisfy the
- request. The number of retries can be specified by the
- ----rrrreeeettttrrrriiiieeeessss argument, or a default of 3 will be used. If the
- retries fail, the proxy manager has no choice but to return
- an error to the caller (since the proxy manager can not
- start unmanaged proxy services).
-
- BBBBUUUUGGGGSSSS
- proxy manager listen port should be configurable.
-
- ----ttttiiiimmmmeeeeoooouuuutttt and ----rrrreeeettttrrrriiiieeeessss is not implemented in proxymngr.
-
- proxymngr does not utilize the ``options'' and ``host''
- fields in the proxy management protocol GetProxyAddr
- request.
-
- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- xfindproxy (1), xfwp (1), Proxy Management Protocol spec
- V1.0
-
- AAAAUUUUTTTTHHHHOOOORRRR
- Ralph Mor, X Consortium
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- Page 4 (printed 10/3/02)
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