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set mtu for your netcard

#!/bin/sh
# file /etc/network/if-up.d/mtu
# Criado em:Seg 03/Out/2011 hs 16:21
# Last Change: 2011 Out 03, 16:32:44
# vim:ft=sh:fdm=syntax:nu:
# Instituicao: none
# Proposito do script: ajustar o mtu da placa de rede
# Autor: Sérgio Luiz Araújo Silva
# site: http://vivaotux.blogspot.com
# twitter: http://www.twitter.com/voyeg3r

# how use this script:
# save this file in /etc/network/if-up.d/mtu
# chmod 700 /etc/network/if-up.d/mtu
# restart yout network card :)

# source: http://monespaceperso.org/blog-en/2009/02/26/how-to-change-the-default-mtu-of-a-network-card-on-ubuntu/

# get default network interface
DEV=`netstat -i | awk '/eth/ {print $1}'`

# set mtu to default card interface
ifconfig $DEV mtu 1492
https://snipt.net/embed/48b0d7e85428665121dc5fd99f76181e/
/raw/48b0d7e85428665121dc5fd99f76181e/
48b0d7e85428665121dc5fd99f76181e
bash
Bash
25
2019-08-23T11:29:40
True
False
False
/api/public/snipt/30615/
set-mtu-for-your-netcard
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a> <a href="#L-22">22</a> <a href="#L-23">23</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="ch">#!/bin/sh</span> </span><span id="L-2"><a name="L-2"></a><span class="c1"># file /etc/network/if-up.d/mtu</span> </span><span id="L-3"><a name="L-3"></a><span class="c1"># Criado em:Seg 03/Out/2011 hs 16:21</span> </span><span id="L-4"><a name="L-4"></a><span class="c1"># Last Change: 2011 Out 03, 16:32:44</span> </span><span id="L-5"><a name="L-5"></a><span class="c1"># vim:ft=sh:fdm=syntax:nu:</span> </span><span id="L-6"><a name="L-6"></a><span class="c1"># Instituicao: none</span> </span><span id="L-7"><a name="L-7"></a><span class="c1"># Proposito do script: ajustar o mtu da placa de rede</span> </span><span id="L-8"><a name="L-8"></a><span class="c1"># Autor: Sérgio Luiz Araújo Silva</span> </span><span id="L-9"><a name="L-9"></a><span class="c1"># site: http://vivaotux.blogspot.com</span> </span><span id="L-10"><a name="L-10"></a><span class="c1"># twitter: http://www.twitter.com/voyeg3r</span> </span><span id="L-11"><a name="L-11"></a> </span><span id="L-12"><a name="L-12"></a><span class="c1"># how use this script:</span> </span><span id="L-13"><a name="L-13"></a><span class="c1"># save this file in /etc/network/if-up.d/mtu</span> </span><span id="L-14"><a name="L-14"></a><span class="c1"># chmod 700 /etc/network/if-up.d/mtu</span> </span><span id="L-15"><a name="L-15"></a><span class="c1"># restart yout network card :)</span> </span><span id="L-16"><a name="L-16"></a> </span><span id="L-17"><a name="L-17"></a><span class="c1"># source: http://monespaceperso.org/blog-en/2009/02/26/how-to-change-the-default-mtu-of-a-network-card-on-ubuntu/</span> </span><span id="L-18"><a name="L-18"></a> </span><span id="L-19"><a name="L-19"></a><span class="c1"># get default network interface</span> </span><span id="L-20"><a name="L-20"></a><span class="nv">DEV</span><span class="o">=</span><span class="sb">`</span>netstat -i <span class="p">|</span> awk <span class="s1">&#39;/eth/ {print $1}&#39;</span><span class="sb">`</span> </span><span id="L-21"><a name="L-21"></a> </span><span id="L-22"><a name="L-22"></a><span class="c1"># set mtu to default card interface</span> </span><span id="L-23"><a name="L-23"></a>ifconfig <span class="nv">$DEV</span> mtu 1492 </span></pre></div> </td></tr></table>
debian, ifconfig, linux, mtu, network, ubuntu