| 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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