| 코드 | 키워드 | 설명 | rsyslog | journald |
|---|
| 0 | emerg | 시스템을 사용할 수 없음 | *.emerg | emerg |
| 1 | alert | 즉시 조치를 취해야 함 | *.alert | alert |
| 2 | crit | 심각한 조건 | *.crit | crit |
| 3 | err | 오류 조건 | *.err | err |
| 4 | warning | 경고 조건 | *.warning | warning |
| 5 | notice | 정상적이나 중요한 조건 | *.notice | notice |
| 6 | info | 정보 메시지 | *.info | info |
| 7 | debug | 디버그 레벨 메시지 | *.debug | debug |
const FACILITIES = [
[0,'kern','Kernel messages'],
[1,'user','User-level messages'],
[2,'mail','Mail system'],
[3,'daemon','System daemons'],
[4,'auth','Security/authorization messages'],
[5,'syslog','Messages generated internally by syslogd'],
[6,'lpr','Line printer subsystem'],
[7,'news','Network news subsystem'],
[8,'uucp','UUCP subsystem'],
[9,'cron','Clock daemon'],
[10,'authpriv','Security/authorization messages (private)'],
[11,'ftp','FTP daemon'],
[12,'ntp','NTP subsystem'],
[13,'security','Log audit'],
[14,'console','Log alert'],
[15,'solaris-cron','Scheduling daemon'],
[16,'local0','Local use 0'],
[17,'local1','Local use 1'],
[18,'local2','Local use 2'],
[19,'local3','Local use 3'],
[20,'local4','Local use 4'],
[21,'local5','Local use 5'],
[22,'local6','Local use 6'],
[23,'local7','Local use 7'],
];
const SEVERITIES = [
[0,'emerg','System is unusable'],
[1,'alert','Action must be taken immediately'],
[2,'crit','Critical conditions'],
[3,'err','Error conditions'],
[4,'warning','Warning conditions'],
[5,'notice','Normal but significant'],
[6,'info','Informational'],
[7,'debug','Debug-level messages'],
];
// Populate selects and facility table
(function init() {
const fSel = document.getElementById('facilitySelect');
const sSel = document.getElementById('severitySelect');
const fTable = document.getElementById('facilityTable');
FACILITIES.forEach(([code, kw, desc]) => {
const opt = document.createElement('option');
opt.value = code;
opt.textContent = `${code} - ${kw} (${desc.substring(0, 25)}...)`;
fSel.appendChild(opt);
const tr = document.createElement('tr');
tr.innerHTML = `${code} | ${kw} | ${desc} | `;
fTable.appendChild(tr);
});
fSel.value = '20'; // local4 default
SEVERITIES.forEach(([code, kw, desc]) => {
const opt = document.createElement('option');
opt.value = code;
opt.textContent = `${code} - ${kw}`;
sSel.appendChild(opt);
});
sSel.value = '5'; // notice default
})();
function decodePri() {
const pri = parseInt(document.getElementById('priVal').value);
const div = document.getElementById('decodeResult');
const section = document.getElementById('decodeResultSection');
section.style.display = 'block';
if (isNaN(pri) || pri < 0 || pri > 191) {
div.innerHTML = 'Invalid PRI. Valid range: 0–191.';
return;
}
const facCode = Math.floor(pri / 8);
const sevCode = pri % 8;
const fac = FACILITIES[facCode] || [facCode, 'unknown', 'Unknown'];
const sev = SEVERITIES[sevCode];
div.innerHTML = `
PRI ${pri} = facility ${facCode} + severity ${sevCode}
Facility: ${fac[0]} — ${fac[1]} (${fac[2]})
Severity: ${sev[0]} — ${sev[1]} (${sev[2]})
Filter expressions:
syslogd: ${fac[1]}.${sev[1]}
rsyslog: if $syslogfacility-text == '${fac[1]}' and $syslogseverity <= ${sevCode} then /var/log/custom.log
journald: journalctl SYSLOG_FACILITY=${facCode} PRIORITY=${sevCode}`;
}
function encodePri() {
const fac = parseInt(document.getElementById('facilitySelect').value);
const sev = parseInt(document.getElementById('severitySelect').value);
const pri = fac * 8 + sev;
const facInfo = FACILITIES[fac];
const sevInfo = SEVERITIES[sev];
const div = document.getElementById('encodeResult');
const section = document.getElementById('encodeResultSection');
section.style.display = 'block';
div.innerHTML = `
PRI = ${pri}
Facility ${fac} (${facInfo[1]}) × 8 + Severity ${sev} (${sevInfo[1]}) = ${pri}
Syslog header: <${pri}>
Filter: ${facInfo[1]}.${sevInfo[1]}`;
}