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    On 04/06/2012 01:12 PM, Marios Siganos wrote:
    <blockquote
      cite="mid:865CA961-6BDC-48B9-9BB4-AF5C7608F2EB@gmail.com"
      type="cite">Καλησπέρα,
      <div><br>
      </div>
      <div>είμαι φοιτητής σε τμήμα πληροφορικής και ήθελα μια βοήθεια σε
        ένα πρόβλημα που έχω με την υλοποίηση της πτυχιακής μου
        εργασίας.</div>
      <div><br>
      </div>
      <div>Θέλω να στήσω ένα cluster με υπολογιστές που τρέχουν <i>Ubuntu
          linux (Desktop)</i>.</div>
      <div><br>
      </div>
      <div>Έχω κάνει τις ακόλουθες αλλαγές που πρέπει στο <span
          style="color: rgb(0, 0, 0); font-size: 12px; font-variant:
          normal; letter-spacing: normal; line-height: normal; orphans:
          2; text-align: -webkit-auto; text-indent: 0px; text-transform:
          none; white-space: normal; widows: 2; word-spacing: 0px;
          -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
          0px; background-color: rgb(255, 255, 255); display: inline
          !important; float: none; "><b><i>/etc/network/interfaces</i></b></span><span
          style="color: rgb(0, 0, 0); font-size: 12px; font-style:
          normal; font-variant: normal; font-weight: normal;
          letter-spacing: normal; line-height: normal; orphans: 2;
          text-align: -webkit-auto; text-indent: 0px; text-transform:
          none; white-space: normal; widows: 2; word-spacing: 0px;
          -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
          0px; background-color: rgb(255, 255, 255); display: inline
          !important; float: none; "> καθώς θέλω </span><span
          style="color: rgb(0, 0, 0); font-size: 12px; font-variant:
          normal; font-weight: normal; letter-spacing: normal;
          line-height: normal; orphans: 2; text-align: -webkit-auto;
          text-indent: 0px; text-transform: none; white-space: normal;
          widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto;
          -webkit-text-stroke-width: 0px; background-color: rgb(255,
          255, 255); display: inline !important; float: none; "><i>static
            IP</i></span><span style="color: rgb(0, 0, 0); font-size:
          12px; font-style: normal; font-variant: normal; font-weight:
          normal; letter-spacing: normal; line-height: normal; orphans:
          2; text-align: -webkit-auto; text-indent: 0px; text-transform:
          none; white-space: normal; widows: 2; word-spacing: 0px;
          -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
          0px; background-color: rgb(255, 255, 255); display: inline
          !important; float: none; ">.</span></div>
      <div><br>
      </div>
      <div><b><i>auto eth1</i></b></div>
      <div><b><i>iface eth1 inet static</i></b></div>
      <div><b><i><span class="Apple-tab-span" style="white-space:pre"> </span>address
            20.0.0.201</i></b></div>
      <div><b><i><span class="Apple-tab-span" style="white-space:pre"> </span>netmask<span
              class="Apple-tab-span" style="white-space:pre"> </span>255.255.255.0</i></b></div>
      <div><b><i><span class="Apple-tab-span" style="white-space:pre"> </span>gateway
            20.0.0.1</i></b></div>
      <div><b><i><br>
          </i></b></div>
      <div><b><i><span class="Apple-tab-span" style="white-space:pre"> </span>dns-nameservers
            20.0.0.101</i></b></div>
      <div><br>
      </div>
      <div>Μετά από <span style="color: rgb(17, 17, 17); font-size:
          12px; font-variant: normal; letter-spacing: normal;
          line-height: 18px; orphans: 2; text-align: -webkit-auto;
          text-indent: 0px; text-transform: none; white-space: normal;
          widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto;
          -webkit-text-stroke-width: 0px; background-color: rgb(238,
          238, 238); display: inline !important; float: none; "><i><b>sudo
              /etc/init.d/networking restart</b></i></span><span
          style="color: rgb(17, 17, 17); font-size: 12px; font-style:
          normal; font-variant: normal; font-weight: normal;
          letter-spacing: normal; line-height: 18px; orphans: 2;
          text-align: -webkit-auto; text-indent: 0px; text-transform:
          none; white-space: normal; widows: 2; word-spacing: 0px;
          -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
          0px; background-color: rgb(238, 238, 238); display: inline
          !important; float: none; "> παίρνω κανονικά την </span><span
          style="color: rgb(17, 17, 17); font-size: 12px; font-variant:
          normal; font-weight: normal; letter-spacing: normal;
          line-height: 18px; orphans: 2; text-align: -webkit-auto;
          text-indent: 0px; text-transform: none; white-space: normal;
          widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto;
          -webkit-text-stroke-width: 0px; background-color: rgb(238,
          238, 238); display: inline !important; float: none; "><i>static
            IP</i></span><span style="color: rgb(17, 17, 17); font-size:
          12px; font-style: normal; font-variant: normal; font-weight:
          normal; letter-spacing: normal; line-height: 18px; orphans: 2;
          text-align: -webkit-auto; text-indent: 0px; text-transform:
          none; white-space: normal; widows: 2; word-spacing: 0px;
          -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
          0px; background-color: rgb(238, 238, 238); display: inline
          !important; float: none; "> που θέλω και έχω κανονικά
          ίντερνετ.</span></div>
      <div><span style="color: rgb(17, 17, 17); font-size: 12px;
          font-style: normal; font-variant: normal; font-weight: normal;
          letter-spacing: normal; line-height: 18px; orphans: 2;
          text-align: -webkit-auto; text-indent: 0px; text-transform:
          none; white-space: normal; widows: 2; word-spacing: 0px;
          -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
          0px; background-color: rgb(238, 238, 238); display: inline
          !important; float: none; ">Μόλις όμως κάνω επανεκίνηση τους
          υπολογιστές δεν έχω προσβαση στο ίντερνετ. Έχω τη σωστή IP και
          κάνω κανονικά ping στο εσωτερικό δίκτυο αλλά όχι προς τα έξω.</span></div>
      <div><span style="color: rgb(17, 17, 17); font-size: 12px;
          font-style: normal; font-variant: normal; font-weight: normal;
          letter-spacing: normal; line-height: 18px; orphans: 2;
          text-align: -webkit-auto; text-indent: 0px; text-transform:
          none; white-space: normal; widows: 2; word-spacing: 0px;
          -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
          0px; background-color: rgb(238, 238, 238); display: inline
          !important; float: none; "><br>
        </span></div>
      <div><font class="Apple-style-span" color="#111111"><span
            class="Apple-style-span" style="line-height: 18px;">Θα
            μπορούσε να φταίνε τα προγράμματα που τρέχουν στο GUI πχ το
            network manager ή κάτι άλλο και να γράφει πάνω στις αλλάγές
            που έκανα.</span></font></div>
      <div><font class="Apple-style-span" color="#111111"><span
            class="Apple-style-span" style="line-height: 18px;">Έχω
            δοκιμάσει να προσθέσω και τον dns server στο resolv.conf
            αλλά δεν είχα το επιθυμητό αποτέλεσμα.</span></font></div>
      <div><span style="color: rgb(17, 17, 17); font-size: 12px;
          font-style: normal; font-variant: normal; font-weight: normal;
          letter-spacing: normal; line-height: 18px; orphans: 2;
          text-align: -webkit-auto; text-indent: 0px; text-transform:
          none; white-space: normal; widows: 2; word-spacing: 0px;
          -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
          0px; background-color: rgb(238, 238, 238); display: inline
          !important; float: none; "><br>
        </span></div>
      <div>Κάθε βοήθεια μου είναι πολύτιμη.</div>
      <div><br>
      </div>
      <div>Σας ευχαριστώ εκ των προτέρων.</div>
      <div><br>
      </div>
      <div>
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            -webkit-line-break: after-white-space; ">
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              -webkit-line-break: after-white-space; ">
              <div style="word-wrap: break-word; -webkit-nbsp-mode:
                space; -webkit-line-break: after-white-space; "><span
                  class="Apple-style-span" style="border-collapse:
                  separate; color: rgb(0, 0, 0); font-family: Helvetica;
                  font-style: normal; font-variant: normal; font-weight:
                  normal; letter-spacing: normal; line-height: normal;
                  orphans: 2; text-indent: 0px; text-transform: none;
                  white-space: normal; widows: 2; word-spacing: 0px;
                  -webkit-border-horizontal-spacing: 0px;
                  -webkit-border-vertical-spacing: 0px;
                  -webkit-text-decorations-in-effect: none;
                  -webkit-text-size-adjust: auto;
                  -webkit-text-stroke-width: 0px; font-size: medium; ">
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                    space; -webkit-line-break: after-white-space; "><span
                      class="Apple-style-span" style="border-collapse:
                      separate; color: rgb(0, 0, 0); font-family:
                      Helvetica; font-style: normal; font-variant:
                      normal; font-weight: normal; letter-spacing:
                      normal; line-height: normal; orphans: 2;
                      text-indent: 0px; text-transform: none;
                      white-space: normal; widows: 2; word-spacing: 0px;
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                      -webkit-text-size-adjust: auto;
                      -webkit-text-stroke-width: 0px; font-size: medium;
                      ">
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                        -webkit-nbsp-mode: space; -webkit-line-break:
                        after-white-space; "><span
                          class="Apple-style-span"
                          style="border-collapse: separate; color:
                          rgb(0, 0, 0); font-family: Helvetica;
                          font-style: normal; font-variant: normal;
                          font-weight: normal; letter-spacing: normal;
                          line-height: normal; orphans: 2; text-indent:
                          0px; text-transform: none; white-space:
                          normal; widows: 2; word-spacing: 0px;
                          -webkit-border-horizontal-spacing: 0px;
                          -webkit-border-vertical-spacing: 0px;
                          -webkit-text-decorations-in-effect: none;
                          -webkit-text-size-adjust: auto;
                          -webkit-text-stroke-width: 0px; font-size:
                          medium; ">
                          <div style="word-wrap: break-word;
                            -webkit-nbsp-mode: space;
                            -webkit-line-break: after-white-space; "><span
                              class="Apple-style-span"
                              style="border-collapse: separate; color:
                              rgb(0, 0, 0); font-family: Helvetica;
                              font-style: normal; font-variant: normal;
                              font-weight: normal; letter-spacing:
                              normal; line-height: normal; orphans: 2;
                              text-indent: 0px; text-transform: none;
                              white-space: normal; widows: 2;
                              word-spacing: 0px;
                              -webkit-border-horizontal-spacing: 0px;
                              -webkit-border-vertical-spacing: 0px;
                              -webkit-text-decorations-in-effect: none;
                              -webkit-text-size-adjust: auto;
                              -webkit-text-stroke-width: 0px; font-size:
                              medium; ">
                              <div style="word-wrap: break-word;
                                -webkit-nbsp-mode: space;
                                -webkit-line-break: after-white-space; "><span
                                  class="Apple-style-span"
                                  style="border-collapse: separate;
                                  color: rgb(0, 0, 0); font-family:
                                  Helvetica; font-style: normal;
                                  font-variant: normal; font-weight:
                                  normal; letter-spacing: normal;
                                  line-height: normal; orphans: 2;
                                  text-indent: 0px; text-transform:
                                  none; white-space: normal; widows: 2;
                                  word-spacing: 0px;
                                  -webkit-border-horizontal-spacing:
                                  0px; -webkit-border-vertical-spacing:
                                  0px;
                                  -webkit-text-decorations-in-effect:
                                  none; -webkit-text-size-adjust: auto;
                                  -webkit-text-stroke-width: 0px;
                                  font-size: medium; ">
                                  <div style="word-wrap: break-word;
                                    -webkit-nbsp-mode: space;
                                    -webkit-line-break:
                                    after-white-space; ">
                                    <div>---------------------------------------------------------</div>
                                    <div>Marios Siganos</div>
                                    <div>Student, Department of Computer
                                      Science and Biomedical Informatics</div>
                                    <div>University of Central Greece</div>
                                    <div>Lamia 35100, Greece</div>
                                    <div>---------------------------------------------------------</div>
                                  </div>
                                </span></div>
                            </span></div>
                        </span></div>
                    </span></div>
                </span></div>
            </div>
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      <pre wrap="">
</pre>
    </blockquote>
    Δοκίμασε στο networkmanager στα IPv4 settings να ενεργοποιήσεις το
    shared to other computers. Έτσι το είχα κάνει εγώ, αν και δεν ήθελα
    static IPs.<br>
    <br>
    <pre class="moz-signature" cols="72">-- 
Iakovos Gurulian
<a class="moz-txt-link-abbreviated" href="mailto:iakovos.gurulian@cs.ucl.ac.uk">iakovos.gurulian@cs.ucl.ac.uk</a>
Postgraduate MSc Information Security
Tel: +447958402481

UCL Department of Computer Science
Malet Place Engineering Building
UCL Bloomsbury Campus
London WC1E 6BT</pre>
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