<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Olivier,<div class=""><br class=""></div><div class=""><br class=""></div><div class="">In my experience, the best new installation, add users and use imapsync. If the servers are virtualized, downtime is tens of seconds (only change IP addresses behind the firewall after last syncronisation).</div><div class=""><br class=""></div><div class="">Ludvik</div><div class=""><br class=""></div><div class=""><br class=""><div class="">
<div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div style="line-height: normal;" class=""><div class="">S pozdravem</div><div class=""><br class=""><div apple-content-edited="true" class=""><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><span class="Apple-style-span" style="border-collapse: separate; orphans: 2; widows: 2; border-spacing: 0px;"><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class="" style="margin: 0px;"><div class="" style="margin: 0px;">Ludvík Schmarcz</div><div class="" style="margin: 0px;">IT specialista</div><div class="" style="margin: 0px;"><br class=""></div><div class="" style="margin: 0px;">tel.: 777 726 780</div><br class="Apple-interchange-newline" style="font-size: medium;"></div></div></span></div></span></div></span></div></span></div></span></div></span></div></span></div></div></div><br class="Apple-interchange-newline" style="line-height: normal;"></div><span><img height="150" width="150" apple-inline="yes" id="10C7FF58-AA5C-4DFA-93A7-55A261FE2627" apple-width="yes" apple-height="yes" src="cid:0C09C6EF-C5E3-418B-B7B9-53B51140A406" class=""></span><div class="" style="color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; line-height: normal; orphans: 2; widows: 2; margin: 0px; font-family: 'Courier New';"><br class="Apple-interchange-newline"><br class="Apple-interchange-newline"><br class="Apple-interchange-newline"><br class="Apple-interchange-newline"><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">--</div><div class="" style="color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; line-height: normal; orphans: 2; widows: 2; margin: 0px; font-family: 'Courier New';">--------------------------------------</div><div class="" style="color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; line-height: normal; orphans: 2; widows: 2; margin: 0px; font-family: 'Courier New';">---- Black Sun IT Services s.r.o. ----</div><div class="" style="color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; line-height: normal; orphans: 2; widows: 2; margin: 0px; font-family: 'Courier New';">--------------------------------------</div><div class="" style="color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; line-height: normal; orphans: 2; widows: 2; margin: 0px; font-family: 'Courier New';">-- computers - graphics - solutions --</div><div class="" style="color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; line-height: normal; orphans: 2; widows: 2; margin: 0px; font-family: 'Courier New';">--- networks - internet - intranet ---</div><div class="" style="color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; line-height: normal; orphans: 2; widows: 2; margin: 0px; font-family: 'Courier New';">--------------------------------------</div><div class="" style="font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; line-height: normal; orphans: 2; widows: 2; margin: 0px; font-family: 'Courier New'; color: rgb(41, 81, 169);"><span class="" style="color: rgb(0, 0, 0);">------- <a href="http://www.blacksun.cz/" class="">http://www.blacksun.cz</a> -------</span></div><div class="" style="color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; line-height: normal; orphans: 2; widows: 2; margin: 0px; font-family: 'Courier New';">--------------------------------------</div>
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<br class=""><div><blockquote type="cite" class=""><div class="">14. 3. 2017 v 16:37, Olivier Boucard <<a href="mailto:olivier@pafostech.com" class="">olivier@pafostech.com</a>>:</div><br class="Apple-interchange-newline"><div class="">
<meta http-equiv="content-type" content="text/html; charset=utf-8" class="">
<div bgcolor="#FFFFFF" text="#000000" class=""><p class=""><font face="Helvetica, Arial, sans-serif" class="">Hi,</font></p><p class=""><font face="Helvetica, Arial, sans-serif" class="">I have an old Kolab 3.3
running on an old CentOS 6. I would like to migrate to a new
server running CentOS 7 with the latest Kolab.</font></p><p class=""><font face="Helvetica, Arial, sans-serif" class="">What would be the steps
(not in details just the overall process) to do such a migration
with no service interruption (keeping the old server running)?<br class="">
Especially concerning the DNS configuration.</font></p><p class=""><font face="Helvetica, Arial, sans-serif" class="">Thanks</font></p><p class=""><font face="Helvetica, Arial, sans-serif" class="">Olivier Boucard<br class="">
</font></p>
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