.. عنوان: مرجع تنظیم لینوکس TCP Sysctl
.. Slug: linux-tcp-sysctl-reference
.. تاریخ: 2026-03-27 12:00:00 UTC
.. برچسب ها: لینوکس، tcp، sysctl، عملکرد، هسته، ماشین حساب، ابزار
.. دسته: ماشین حساب
.. لینک:
.. توضیحات: راهنمای پارامترهای لینوکس تعاملی net.ipv4.tcp_* و net.core.* با تنظیمات از پیش تعیین شده حجم کاری برای انتقال انبوه، RPC حساس به تأخیر، وب سرور با اتصال بالا، و WAN با لوله طولانی.
.. نوع: متن
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<div class="calc-container">
<div class="calc-header">
<h2>مرجع تنظیم TCP Sysctl لینوکس</h2>
<p>تعاملی<code style="color:rgba(255,255,255,0.9)">net.ipv4.tcp_*</code>و<code style="color:rgba(255,255,255,0.9)">net.core.*</code>راهنمای پارامتر با تنظیمات از پیش تعیین شده بار کاری برای انتقال انبوه، RPC حساس به تأخیر، وب سرور با اتصال بالا و WAN با لوله طولانی.</p>
<div class="input-grid">
<div class="input-group">
<label>جستجو / فیلتر</label>
<input id="searchInput" oninput="filterParams(this.value)" placeholder="Search parameters..." type="text"/>
</div>
<div class="input-group">
<label>از پیش تنظیم حجم کار</label>
<div class="preset-row" id="presetRow"></div>
</div>
</div>
</div>
<div class="result-section">
<div class="section-header">پارامترهای TCP Sysctl</div>
<div class="section-content" id="paramList">
</div>
<div style="padding: 20px; background: #fafafa; border-top: 1px solid #e0e0e0;">
<button class="copy-all-btn" onclick="copyAll()">همه پارامترهای نمایش داده شده را به عنوان دستورهای sysctl کپی کنید</button>
</div>
</div>
</div>
<script>
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        name: 'net.ipv4.tcp_congestion_control',
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    },
    {
        name: 'net.ipv4.tcp_window_scaling',
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        presets: { bulk: '1', rpc: '1', web: '1', wan: '1' },
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    },
    {
        name: 'net.ipv4.tcp_timestamps',
        desc: 'RFC 1323 timestamps — used for PAWS (protection against wrapped sequence numbers) and RTT measurement.',
        default: '1',
        presets: { bulk: '1', rpc: '1', web: '1', wan: '1' },
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        tags: ['rfc1323', 'paws', 'rtt'],
        doc: 'https://www.kernel.org/doc/html/latest/networking/ip-sysctl.html',
    },
    {
        name: 'net.ipv4.tcp_sack',
        desc: 'Selective Acknowledgements (RFC 2018). Allows receiver to inform sender of non-contiguous received segments, improving recovery from multiple losses.',
        default: '1',
        presets: { bulk: '1', rpc: '1', web: '1', wan: '1' },
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    },
    {
        name: 'net.ipv4.tcp_max_syn_backlog',
        desc: 'Maximum number of SYN packets queued per listening socket before dropping. Increase for high connection-rate servers.',
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        presets: {
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            rpc: '4096',
            web: '65536',
            wan: '1024',
        },
        range: '128 – 65536 (limited by system memory)',
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        doc: 'https://www.kernel.org/doc/html/latest/networking/ip-sysctl.html',
    },
    {
        name: 'net.core.somaxconn',
        desc: 'Maximum socket listen backlog (accept queue depth). Application must also set listen() backlog >= this value.',
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        presets: {
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            rpc: '8192',
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        range: '128 – 65535',
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        doc: 'https://www.kernel.org/doc/html/latest/networking/ip-sysctl.html',
    },
    {
        name: 'net.ipv4.tcp_tw_reuse',
        desc: 'Allow reuse of TIME_WAIT sockets for new connections when safe (requires timestamps). Reduces port exhaustion under heavy connection churn.',
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        presets: {
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            rpc: '1',
            web: '1',
            wan: '2',
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        range: '0 (disable), 1 (enable for loopback), 2 (enable for all)',
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        doc: 'https://www.kernel.org/doc/html/latest/networking/ip-sysctl.html',
    },
    {
        name: 'net.ipv4.tcp_fin_timeout',
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        default: '60',
        presets: {
            bulk: '60',
            rpc: '15',
            web: '15',
            wan: '60',
        },
        range: '5 – 120 seconds',
        tags: ['fin', 'timeout', 'connection'],
        doc: 'https://www.kernel.org/doc/html/latest/networking/ip-sysctl.html',
    },
];

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init();
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