conmand(8) [centos man page]
CONMAND(8) ConMan: The Console Manager CONMAND(8) NAME
conmand - ConMan daemon SYNOPSIS
conmand [OPTION]... DESCRIPTION
conmand is the daemon responsible for managing consoles defined by its configuration file as well as listening for connections from clients. OPTIONS
-c file Specify a configuration file, overriding the default location [/etc/conman.conf]. -F Run the daemon in the foreground. -h Display a summary of the command-line options. -k Send a SIGTERM to the conmand process associated with the specified configuration, thereby killing the daemon. Returns 0 if the daemon was successfully signaled; otherwise, returns 1. -L Display license information. -p port Specify the port on which conmand will listen for clients, overriding both the default port [7890] and the port specified in the configuration file. -q Displays the PID of the conmand process associated with the specified configuration if it appears active. Returns 0 if the configu- ration appears active; otherwise, returns 1. -r Send a SIGHUP to the conmand process associated with the specified configuration, thereby re-opening both that daemon's log file and individual console log files. Returns 0 if the daemon was successfully signaled; otherwise, returns 1. -v Enable verbose mode. -V Display version information. -z Truncate both the daemon's log file and individual console log files at start-up. SIGNALS
SIGHUP Close and re-open both the daemon's log file and the individual console log files. Conversion specifiers within filenames will be re-evaluated. This is useful for logrotate configurations. SIGTERM Terminate the daemon. SECURITY
Connections to the server are not authenticated, and communications between client and server are not encrypted. When time allows, this will be addressed in a future release. Until then, the recommendation is to bind the server's listen socket to the loopback address (by specifying "server loopback=on" in conman.conf) and restrict access to the server host. NOTES
Log messages are sent to standard-error until after the configuration file has been read, at which time future messages are discarded unless either the logfile or syslog keyword has been specified (cf., conman.conf(5)). If the configuration file is modified while the daemon is running and a pidfile was not originally specified, the '-k' and '-r' options may be unable to identify the daemon process; consequently, the appropriate signal may need to be sent to the daemon manually. The number of consoles that can be simultaneously managed is limited by the maximum number of file descriptors a process can have open. The daemon sets its "nofile" soft limit to the maximum/hard limit. If you are encountering "too many open files" errors, you may need to increase the "nofile" hard limit. AUTHOR
Chris Dunlap <cdunlap@llnl.gov> COPYRIGHT
Copyright (C) 2007-2011 Lawrence Livermore National Security, LLC. Copyright (C) 2001-2007 The Regents of the University of California. ConMan is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. SEE ALSO
conman(1), conman.conf(5). http://conman.googlecode.com/ conman-0.2.7 2011-04-21 CONMAND(8)
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conman_selinux(8) SELinux Policy conman conman_selinux(8) NAME
conman_selinux - Security Enhanced Linux Policy for the conman processes DESCRIPTION
Security-Enhanced Linux secures the conman processes via flexible mandatory access control. The conman processes execute with the conman_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep conman_t ENTRYPOINTS
The conman_t SELinux type can be entered via the conman_exec_t file type. The default entrypoint paths for the conman_t domain are the following: /usr/sbin/conmand PROCESS TYPES
SELinux defines process types (domains) for each process running on the system You can see the context of a process using the -Z option to ps Policy governs the access confined processes have to files. SELinux conman policy is very flexible allowing users to setup their conman processes in as secure a method as possible. The following process types are defined for conman: conman_t Note: semanage permissive -a conman_t can be used to make the process type conman_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. BOOLEANS
SELinux policy is customizable based on least access required. conman policy is extremely flexible and has several booleans that allow you to manipulate the policy and run conman with the tightest access possible. If you want to allow all daemons to write corefiles to /, you must turn on the daemons_dump_core boolean. Disabled by default. setsebool -P daemons_dump_core 1 If you want to enable cluster mode for daemons, you must turn on the daemons_enable_cluster_mode boolean. Enabled by default. setsebool -P daemons_enable_cluster_mode 1 If you want to allow all daemons to use tcp wrappers, you must turn on the daemons_use_tcp_wrapper boolean. Disabled by default. setsebool -P daemons_use_tcp_wrapper 1 If you want to allow all daemons the ability to read/write terminals, you must turn on the daemons_use_tty boolean. Disabled by default. setsebool -P daemons_use_tty 1 If you want to deny any process from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean. Enabled by default. setsebool -P deny_ptrace 1 If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default. setsebool -P domain_fd_use 1 If you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean. Disabled by default. setsebool -P domain_kernel_load_modules 1 If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default. setsebool -P fips_mode 1 If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default. setsebool -P global_ssp 1 PORT TYPES
SELinux defines port types to represent TCP and UDP ports. You can see the types associated with a port by using the following command: semanage port -l Policy governs the access confined processes have to these ports. SELinux conman policy is very flexible allowing users to setup their conman processes in as secure a method as possible. The following port types are defined for conman: conman_port_t Default Defined Ports: tcp 7890 udp 7890 MANAGED FILES
The SELinux process type conman_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions. cluster_conf_t /etc/cluster(/.*)? cluster_var_lib_t /var/lib/pcsd(/.*)? /var/lib/cluster(/.*)? /var/lib/openais(/.*)? /var/lib/pengine(/.*)? /var/lib/corosync(/.*)? /usr/lib/heartbeat(/.*)? /var/lib/heartbeat(/.*)? /var/lib/pacemaker(/.*)? cluster_var_run_t /var/run/crm(/.*)? /var/run/cman_.* /var/run/rsctmp(/.*)? /var/run/aisexec.* /var/run/heartbeat(/.*)? /var/run/cpglockd.pid /var/run/corosync.pid /var/run/rgmanager.pid /var/run/cluster/rgmanager.sk conman_log_t /var/log/conman(/.*)? /var/log/conman.old(/.*)? root_t / /initrd FILE CONTEXTS
SELinux requires files to have an extended attribute to define the file type. You can see the context of a file using the -Z option to ls Policy governs the access confined processes have to these files. SELinux conman policy is very flexible allowing users to setup their conman processes in as secure a method as possible. EQUIVALENCE DIRECTORIES conman policy stores data with multiple different file context types under the /var/log/conman directory. If you would like to store the data in a different directory you can use the semanage command to create an equivalence mapping. If you wanted to store this data under the /srv dirctory you would execute the following command: semanage fcontext -a -e /var/log/conman /srv/conman restorecon -R -v /srv/conman STANDARD FILE CONTEXT SELinux defines the file context types for the conman, if you wanted to store files with these types in a diffent paths, you need to exe- cute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk. semanage fcontext -a -t conman_exec_t '/srv/conman/content(/.*)?' restorecon -R -v /srv/myconman_content Note: SELinux often uses regular expressions to specify labels that match multiple files. The following file types are defined for conman: conman_exec_t - Set files with the conman_exec_t type, if you want to transition an executable to the conman_t domain. conman_log_t - Set files with the conman_log_t type, if you want to treat the data as conman log data, usually stored under the /var/log directory. Paths: /var/log/conman(/.*)?, /var/log/conman.old(/.*)? conman_unit_file_t - Set files with the conman_unit_file_t type, if you want to treat the files as conman unit content. Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels. COMMANDS
semanage fcontext can also be used to manipulate default file context mappings. semanage permissive can also be used to manipulate whether or not a process type is permissive. semanage module can also be used to enable/disable/install/remove policy modules. semanage port can also be used to manipulate the port definitions semanage boolean can also be used to manipulate the booleans system-config-selinux is a GUI tool available to customize SELinux policy settings. AUTHOR
This manual page was auto-generated using sepolicy manpage . SEE ALSO
selinux(8), conman(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8) conman 14-06-10 conman_selinux(8)