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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CMIIW, Thanks Smile

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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CMIIW, Thanks Smile

Install Varnish with Apache Server

Posted: March 24, 2017 in Linux

Install apt-transport-https

# apt-get install apt-transport-https
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Install Curl

# apt-get install curl
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Add GPG Key Varnish

curl https://repo.varnish-cache.org/ubuntu/GPG-key.txt | apt-key add – clip_image006

Add Repository Varnish

# echo "deb https://repo.varnish-cache.org/ubuntu/ trusty varnish-4.1" >> /etc/apt/sources.list.d/varnish-cache.list clip_image008

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Open Start + R –> type gpmc.msc to open Group Policy Management
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Click Right to Create

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Type Name New GPO
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Right Click New GPO to Edit Read the rest of this entry »

Install samba on Ubuntu

Posted: February 17, 2017 in Linux

https://www.server-world.info/en/note?os=Ubuntu_14.04&p=samba&f=4

Setting Network

# nano /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 172.90.1.140
netmask 255.255.255.0
network 172.90.1.0
broadcast 172.90.1.255
gateway 172.90.1.1
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 172.90.1.140
dns-search fikry.local

Setting Hosts

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https://support.microsoft.com/en-us/kb/945011

1. Go to Start > Run (or Windows-key + "R"), type in "regedit" and hit "OK".   clip_image001
2. Navigate to the key "HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion \TrayNotify"
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3. Backup Registry Before Delete.

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