Sophos IPSec with Mikrotik

Posted: March 25, 2020 in Netwok

Create IPSec Policies Sophos for Mikrotik
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Create IPSec Connections for Mikrotik
Sophos as server because My IP Public is Dynamic
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Download Parellels RAS Server

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Download Import-FSRMQuota.ps1

https://gallery.technet.microsoft.com/scriptcenter/Powershell-script-to-e159f521/file/153734/1/Import-FSRMQuota.ps1

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Open PowerShell

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Thanks to :

https://wiki.zimbra.com/wiki/Zimbra_Releases/8.6_Patch_8

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Login As root

· Download Patch Update

http://www.zimbra.org/download/zimbra-collaboration/8.6.0

wget https://files.zimbra.com/downloads/8.6.0_GA/zcs-patch-8.6.0_GA_1242.tgz

· Extract file

tar xzf zcs-patch-8.6.0_GA_1242.tgz

· Log in as root and cd to the directory where the tar file is saved. Type

cd zcs-patch-8.6.0_GA_1242

· As root, install the patch. Type

~/zcs-patch-8.6.0_GA_1242# ./installPatch.s

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· Switch to user zimbra

su zimbra

· ZCS must be restarted to changes to take effect. Type

zmcontrol restart

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Zimbra 8.6 Redirect HTTP to HTTPS

Posted: December 5, 2017 in Linux

Thanks to

https://wiki.zimbra.com/wiki/Provide_HTTP(s)_Integration_with_Apache

http://know.mailsbestfriend.com/how_to_change_the_web_access_port_for_zimbra-260852131.shtml

https://www.zimbra.com/docs/ne/6.0.8/administration_guide/ZimbraProxy.07.6.html

https://wiki.zimbra.com/wiki/CLI_zmtlsctl_to_set_Web_Server_Mode

Change Web Server Mode

login as zimbra

$ zmtlsctl redirect

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$ zmcontrol restart

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Thanks to https://wiki.zimbra.com/wiki/Installing_a_LetsEncrypt_SSL_Certificate

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Installing Let’s Encrypt on a Zimbra Server

Let’s Encrypt must be installed on one Linux machine to obtain the proper SSL Certificate, CA Intermediate, and Private Key. It is not required that it be on the same Zimbra Server, but it could save time and help to obtain the renewals, etc.

· First Step is to stop the jetty or nginx service at Zimbra level

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https://knowledge.symantec.com/support/ssl-certificates-support/index?page=content&id=SO20541

https://wiki.zimbra.com/wiki/Installing_a_GeoTrust_Commercial_Certificate

Login as root :

1. Copy certificate your existing to /opt/zimbra/ssl/zimbra/commercial/with name commercial.key, commercial.crt and commercial_ca.crt

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2. Commercial_ca.crt from ca_bundle.crt or Intermediate.crt and Root.crt (merge)

—–BEGIN CERTIFICATE—–

Intermidiate

—–END CERTIFICATE—–

—–BEGIN CERTIFICATE—–

Root

—–END CERTIFICATE—–

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https://support.microsoft.com/en-us/help/980049/you-cannot-connect-to-an-exchange-server-2010-mailbox-from-outlook-web-access  
I have error when user access email from Outlook Web Access (OWA) cannot access your mailbox, but other can used that. When I checked from event viewer, I found error below
Mapi session "5757391d-b61f-4393-9c2a-92c3922f203e: /o=First Organization/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=claimsf30" exceeded the maximum of 16 objects of type "session".

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Resolution

  1. On the server that is running the Exchange Server 2010 Mailbox role, click Start, click Run, type regedit, and then click OK.
  2. Locate and then click the following key in the registry:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem
  3. On the Edit menu, point to New, and then click DWORD Value.
  4. Type Maximum Allowed Service Sessions Per User, and then press ENTER.
  5. On the Edit menu, click Modify.
  6. Type the decimal value that specifies the number of sessions that you want to use, and then click OK.
  7. Exit Registry Editor.

Note The registry value Maximum Allowed Service Sessions Per User affects all Mailbox Databases on the server and is not applied on a per-user basis. If you increase this value, server performance may be adversely affected. For example, doubling the number of service sessions from 16 to 32 could slow server performance.

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GPO Desktop Wallpaper

Posted: April 3, 2017 in Windows

Open gpmc.msc, Create GPO and Edit GPO
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Avoid Check Hardisk on RedHat

Posted: March 27, 2017 in Linux

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When you restart RedHat, type command below
# shutdown –rf now
If you forget type restart with shutdown –rf now, when booting linux will be check your hardisk. But, from booting you can avoid the check disk. You edit Grub, press F11 and a (add for fastboot) and enter
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