Replace PGP keyserver sks-keyservers.net with keys.openpgp.org

sks-keyservers.net is dead

Closes #1500

Author: tcitworld

install-instructions-server.php

@@ -49,7 +49,7 @@
                                     <li><?php echo $l->t('Download the');?> <a class="hyperlink" href="<?php echo $DOWNLOAD_SERVER_STABLE_TAR; ?>">.tar.bz2</a></a> <?php echo $l->t('or');?> <a class="hyperlink" href="<?php echo $DOWNLOAD_SERVER_STABLE_ZIP; ?>">.zip</a> <?php echo $l->t('archive.');?></li>
                                     <li><?php echo $l->t('Check package integrity using MD5');?> (<a class="hyperlink" href="<?php echo $DOWNLOAD_SERVER_STABLE_TAR_MD5; ?>">.tar.bz2</a> / <a class="hyperlink"  href="<?php echo $DOWNLOAD_SERVER_STABLE_ZIP_MD5; ?>">.zip</a>) <?php echo $l->t('or');?> SHA256 (<a class="hyperlink"  href="<?php echo $DOWNLOAD_SERVER_STABLE_TAR_SHA256; ?>">.tar.bz2</a> / <a class="hyperlink"  href="<?php echo $DOWNLOAD_SERVER_STABLE_ZIP_SHA256; ?>">.zip</a>)</li>
                                     <li><?php echo $l->t('Verify the authenticity via PGP');?> (<a class="hyperlink" target="_blank" href="<?php echo $DOWNLOAD_SERVER_STABLE_TAR_PGP; ?>">.tar.bz2 </a>/<a class="hyperlink" target="_blank" href="<?php echo $DOWNLOAD_SERVER_STABLE_ZIP_PGP ?>">.zip</a>). <?php echo $l->t('The Nextcloud GPG key');?> <a class="hyperlink" target="_blank" href="<?php echo $NEXTCLOUD_GPG ; ?>"><?php echo $l->t('is here');?></a>. <?php echo $l->t('You can also grab the keys by issueing this command:');?><br />
-                                    <code>gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 28806A878AE423A28372792ED75899B9A724937A</code></li>
+                                    <code>gpg --keyserver keys.openpgp.org --recv-keys 28806A878AE423A28372792ED75899B9A724937A</code></li>
                                 </ol>
                                 <p><?php echo $l->t('You can already find server packages included with many distributions or provided by active community members. Find an <a class="hyperlink" href="https://help.nextcloud.com/t/linux-packages-status/10216">overview of packages for various distributions as well as Docker and snap images here.</a> Can\'t find packages you need? Ask your distribution for packages or contribute to creating them!');?></p>
                             </div>