1 | #
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2 | # For a description of the syntax of this configuration file,
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3 | # see scripts/kbuild/config-language.txt.
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4 | #
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5 |
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6 | menu "System Logging Utilities"
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7 |
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8 | config SYSLOGD
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9 | bool "syslogd"
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10 | default n
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11 | help
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12 | The syslogd utility is used to record logs of all the
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13 | significant events that occur on a system. Every
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14 | message that is logged records the date and time of the
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15 | event, and will generally also record the name of the
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16 | application that generated the message. When used in
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17 | conjunction with klogd, messages from the Linux kernel
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18 | can also be recorded. This is terribly useful,
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19 | especially for finding what happened when something goes
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20 | wrong. And something almost always will go wrong if
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21 | you wait long enough....
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22 |
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23 | config FEATURE_ROTATE_LOGFILE
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24 | bool "Rotate message files"
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25 | default n
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26 | depends on SYSLOGD
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27 | help
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28 | This enables syslogd to rotate the message files
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29 | on his own. No need to use an external rotatescript.
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30 |
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31 | config FEATURE_REMOTE_LOG
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32 | bool "Remote Log support"
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33 | default n
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34 | depends on SYSLOGD
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35 | help
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36 | When you enable this feature, the syslogd utility can
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37 | be used to send system log messages to another system
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38 | connected via a network. This allows the remote
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39 | machine to log all the system messages, which can be
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40 | terribly useful for reducing the number of serial
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41 | cables you use. It can also be a very good security
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42 | measure to prevent system logs from being tampered with
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43 | by an intruder.
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44 |
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45 | config FEATURE_IPC_SYSLOG
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46 | bool "Circular Buffer support"
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47 | default n
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48 | depends on SYSLOGD
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49 | help
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50 | When you enable this feature, the syslogd utility will
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51 | use a circular buffer to record system log messages.
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52 | When the buffer is filled it will continue to overwrite
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53 | the oldest messages. This can be very useful for
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54 | systems with little or no permanent storage, since
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55 | otherwise system logs can eventually fill up your
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56 | entire filesystem, which may cause your system to
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57 | break badly.
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58 |
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59 | config FEATURE_IPC_SYSLOG_BUFFER_SIZE
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60 | int " Circular buffer size in Kbytes (minimum 4KB)"
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61 | default 16
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62 | range 4 2147483647
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63 | depends on FEATURE_IPC_SYSLOG
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64 | help
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65 | This option sets the size of the circular buffer
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66 | used to record system log messages.
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67 |
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68 | config LOGREAD
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69 | bool "logread"
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70 | default y
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71 | depends on FEATURE_IPC_SYSLOG
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72 | help
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73 | If you enabled Circular Buffer support, you almost
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74 | certainly want to enable this feature as well. This
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75 | utility will allow you to read the messages that are
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76 | stored in the syslogd circular buffer.
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77 |
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78 | config FEATURE_LOGREAD_REDUCED_LOCKING
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79 | bool "logread double buffering"
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80 | default n
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81 | depends on LOGREAD
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82 | help
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83 | 'logread' ouput to slow serial terminals can have
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84 | side effects on syslog because of the semaphore.
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85 | This option make logread to double buffer copy
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86 | from circular buffer, minimizing semaphore
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87 | contention at some minor memory expense.
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88 |
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89 | config KLOGD
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90 | bool "klogd"
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91 | default n
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92 | help
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93 | klogd is a utility which intercepts and logs all
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94 | messages from the Linux kernel and sends the messages
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95 | out to the 'syslogd' utility so they can be logged. If
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96 | you wish to record the messages produced by the kernel,
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97 | you should enable this option.
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98 |
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99 | config LOGGER
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100 | bool "logger"
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101 | default n
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102 | select FEATURE_SYSLOG
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103 | help
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104 | The logger utility allows you to send arbitrary text
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105 | messages to the system log (i.e. the 'syslogd' utility) so
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106 | they can be logged. This is generally used to help locate
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107 | problems that occur within programs and scripts.
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108 |
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109 | endmenu
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110 |
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