.. عنوان: Syslog Priority Calculator
.. slug: syslog-priority-calculator
.. تاریخ: 2026-03-27 12:00:00 UTC
.. ٹیگز: syslog, linux, logging, sysadmin, calculator, tool
.. زمرہ: کیلکولیٹر
.. لنک:
.. تفصیل: syslog PRI قدروں کو سہولت اور شدت سے ڈی کوڈ کریں۔ RFC 5424 حوالہ جدول syslogd، rsyslog، اور جرنلڈ فلٹر کے مساوی کے ساتھ۔
.. قسم: متن
<style>
/* ── CANONICAL DESIGN SYSTEM ─────────────────────────────────────────────── */
.calc-container { max-width: 900px; margin: 20px auto; padding: 20px; }
.calc-header { margin-bottom: 30px; padding: 25px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); border-radius: 12px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); color: white; }
.calc-header h2 { margin-top: 0; color: white; font-size: 28px; margin-bottom: 10px; }
.calc-header p  { margin: 10px 0; opacity: 0.95; font-size: 15px; }
.input-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 15px; margin-top: 20px; }
.input-group { display: flex; flex-direction: column; }
.input-group label { margin-bottom: 8px; font-weight: 600; color: rgba(255,255,255,0.95); font-size: 14px; }
.input-group input, .input-group select { padding: 14px; font-size: 14px; border: 2px solid rgba(255,255,255,0.3); border-radius: 6px; background: rgba(255,255,255,0.95); transition: all 0.3s ease; box-sizing: border-box; }
.input-group input:focus, .input-group select:focus { outline: none; border-color: #4CAF50; background: white; box-shadow: 0 0 0 3px rgba(76,175,80,0.1); }
.button-container { margin-top: 20px; display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.calc-button { padding: 14px 35px; font-size: 16px; background: #4CAF50; color: white; border: none; border-radius: 6px; cursor: pointer; font-weight: bold; transition: all 0.3s ease; box-shadow: 0 2px 4px rgba(0,0,0,0.2); }
.calc-button:hover  { background: #45a049; transform: translateY(-1px); box-shadow: 0 4px 8px rgba(0,0,0,0.3); }
.calc-button:active { background: #3d8b40; transform: translateY(0); }
.help-text { margin-top: 15px; font-size: 14px; color: rgba(255,255,255,0.9); background: rgba(0,0,0,0.1); padding: 10px 15px; border-radius: 4px; }
.result-section { background: white; border: 1px solid #e0e0e0; border-radius: 8px; margin-top: 20px; overflow: hidden; box-shadow: 0 2px 4px rgba(0,0,0,0.05); transition: all 0.3s ease; }
.result-section:hover { box-shadow: 0 4px 8px rgba(0,0,0,0.1); }
.section-header { background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%); color: white; padding: 15px 20px; font-size: 18px; font-weight: bold; }
.section-content { padding: 20px; background: #fafafa; }
.result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; }
.data-row { display: flex; flex-direction: column; padding: 15px; background: white; border-radius: 6px; border-left: 4px solid #4CAF50; box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
.data-label { font-weight: bold; color: #555; font-size: 13px; margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.5px; }
.data-value { color: #4CAF50; font-family: 'Courier New', monospace; font-size: 20px; font-weight: bold; }
.info-box { margin-top: 15px; padding: 15px; background: #e3f2fd; color: #1565c0; border-radius: 8px; border-left: 4px solid #2196F3; font-size: 14px; line-height: 1.6; }
table { width: 100%; border-collapse: collapse; }
th { background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%); color: white; padding: 10px; text-align: left; }
td { padding: 8px 10px; border-bottom: 1px solid #eee; font-size: 13px; }
tr:hover td { background: #f8fff8; }
@media (max-width: 768px) { .input-grid, .result-grid { grid-template-columns: 1fr; } .calc-header h2 { font-size: 22px; } .calc-container { padding: 10px; } }
/* ── END CANONICAL ────────────────────────────────────────────────────────── */

/* Page-specific — severity colors must be preserved */
.sev0 { color: #9b0000; font-weight: bold; }
.sev1 { color: #c00000; font-weight: bold; }
.sev2 { color: #d44000; font-weight: bold; }
.sev3 { color: #b06000; }
.sev4 { color: #007000; }
.sev5 { color: #0055aa; }
.sev6 { color: #555; }
.sev7 { color: #999; }
code { background: #f0f0f0; padding: 2px 5px; border-radius: 3px; font-size: 12px; }
.result-highlight { font-size: 1.4em; font-weight: bold; color: #2e7d32; }
</style>
<div class="calc-container">
<div class="calc-header">
<h2>Syslog ترجیحی کیلکولیٹر</h2>
<p>PRI اقدار کو ڈی کوڈ کریں، فلٹر ایکسپریشنز بنائیں، اور RFC 5424 سہولت/شدید کوڈز کا حوالہ دیں۔</p>
<p class="help-text">PRI = (سہولت × 8) + شدت  |  درست رینج: 0–191</p>
<div class="input-grid">
<div class="input-group">
<label>PRI قدر (0–191)</label>
<input id="priVal" max="191" min="0" placeholder="e.g. 165" type="number" value="165"/>
</div>
<div class="input-group">
<label>— یا — سہولت</label>
<select id="facilitySelect"></select>
</div>
<div class="input-group">
<label>شدت</label>
<select id="severitySelect"></select>
</div>
</div>
<div class="button-container">
<button class="calc-button" onclick="decodePri()">ڈی کوڈ PRI</button>
<button class="calc-button" onclick="encodePri()">انکوڈ سہولت + شدت</button>
</div>
</div>
<div class="result-section" id="decodeResultSection" style="display:none">
<div class="section-header">ڈی کوڈ شدہ نتیجہ</div>
<div class="section-content" id="decodeResult"></div>
</div>
<div class="result-section" id="encodeResultSection" style="display:none">
<div class="section-header">انکوڈ شدہ نتیجہ</div>
<div class="section-content" id="encodeResult"></div>
</div>
<div class="result-section">
<div class="section-header">RFC 5424 سیوریٹی حوالہ</div>
<div class="section-content">
<table>
<tr><th>کوڈ</th><th>کلیدی لفظ</th><th>تفصیل</th><th>rsyslog</th><th>جرنلڈ</th></tr>
<tr><td>0</td><td class="sev0">ابھرنا</td><td>سسٹم ناقابل استعمال ہے۔</td><td><code>*.emerg</code></td><td><code>emerg</code></td></tr>
<tr><td>1</td><td class="sev1">الرٹ</td><td>فوری ایکشن لیا جائے۔</td><td><code>*.alert</code></td><td><code>alert</code></td></tr>
<tr><td>2</td><td class="sev2">تنقید</td><td>نازک حالات</td><td><code>*.crit</code></td><td><code>crit</code></td></tr>
<tr><td>3</td><td class="sev3">غلطی</td><td>خرابی کی شرائط</td><td><code>*.err</code></td><td><code>err</code></td></tr>
<tr><td>4</td><td class="sev4">انتباہ</td><td>انتباہی حالات</td><td><code>*.warning</code></td><td><code>warning</code></td></tr>
<tr><td>5</td><td class="sev5">نوٹس</td><td>عام لیکن اہم حالت</td><td><code>*.notice</code></td><td><code>notice</code></td></tr>
<tr><td>6</td><td class="sev6">معلومات</td><td>معلوماتی پیغامات</td><td><code>*.info</code></td><td><code>info</code></td></tr>
<tr><td>7</td><td class="sev7">ڈیبگ</td><td>ڈیبگ سطح کے پیغامات</td><td><code>*.debug</code></td><td><code>debug</code></td></tr>
</table>
</div>
</div>
<div class="result-section">
<div class="section-header">RFC 5424 سہولت کا حوالہ</div>
<div class="section-content">
<table id="facilityTable">
<tr><th>کوڈ</th><th>کلیدی لفظ</th><th>تفصیل</th></tr>
</table>
</div>
</div>
</div>
<script>
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 = `<td>${code}</td><td><code>${kw}</code></td><td>${desc}</td>`;
        fTable.appendChild(tr);
    });
    fSel.value = '20'; // local4 default
    SEVERITIES.forEach(([code, kw, desc]) => {
        const opt = document.createElement('option');
        opt.value = code;
        opt.textContent = `${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 = '<strong style="color:red">Invalid PRI. Valid range: 0–191.</strong>';
        return;
    }
    const facCode = Math.floor(pri / 8);
    const sevCode = pri % 8;
    const fac = FACILITIES[facCode] || [facCode, 'unknown', 'Unknown'];
    const sev = SEVERITIES[sevCode];
    div.innerHTML = `
        <span class="result-highlight">PRI ${pri}</span> = facility ${facCode} + severity ${sevCode}<br>
        <strong>Facility:</strong> ${fac[0]} — <code>${fac[1]}</code> (${fac[2]})<br>
        <strong>Severity:</strong> ${sev[0]} — <code>${sev[1]}</code> (${sev[2]})<br>
        <hr style="margin:10px 0;border-color:#ccc">
        <strong>Filter expressions:</strong><br>
        syslogd: <code>${fac[1]}.${sev[1]}</code><br>
        rsyslog: <code>if $syslogfacility-text == '${fac[1]}' and $syslogseverity &lt;= ${sevCode} then /var/log/custom.log</code><br>
        journald: <code>journalctl SYSLOG_FACILITY=${facCode} PRIORITY=${sevCode}</code>`;
}

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 = `
        <span class="result-highlight">PRI = ${pri}</span><br>
        <strong>Facility ${fac}</strong> (${facInfo[1]}) &times; 8 + <strong>Severity ${sev}</strong> (${sevInfo[1]}) = ${pri}<br>
        Syslog header: <code>&lt;${pri}&gt;</code><br>
        Filter: <code>${facInfo[1]}.${sevInfo[1]}</code>`;
}
</script>