Mohammed Wasay

How to configure static ip address on CentOS 7

March 14, 2016August 22, 2016

In this small tutorial i will explain how to configure static ip address on CentOS 7Â minimal. First,Â need to edit the set up for the ethernet. Letâ€™s start with editing â€œ/etc/sysconfig/network-scripts/ifcfg-enp0s3â€³Â file:

vi /etc/sysconfig/network-scripts/ifcfg-enp0s3

1	vi /etc/sysconfig/network-scripts/ifcfg-enp0s3

HWADDR=08:00:27:6C:FF:91
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPADDR=192.168.0.88
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=enp0s3
UUID=ea68db6e-461e-427d-b9a8-bfcf6e1a4fc6
ONBOOT=yes

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HWADDR=08:00:27:6C:FF:91

TYPE=Ethernet

BOOTPROTO=static

DEFROUTE=yes

PEERDNS=yes

PEERROUTES=yes

IPV4_FAILURE_FATAL=no

IPADDR=192.168.0.88

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_PEERDNS=yes

IPV6_PEERROUTES=yes

IPV6_FAILURE_FATAL=no

NAME=enp0s3

UUID=ea68db6e-461e-427d-b9a8-bfcf6e1a4fc6

ONBOOT=yes

Save and exit. Now, configure default getaway:

vi /etc/sysconfig/network

1	vi /etc/sysconfig/network

And add following line:

NETWORKING=yes
HOSTNAME=centos7
GATEWAY=10.1.1.253

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NETWORKING=yes

HOSTNAME=centos7

GATEWAY=10.1.1.253

Configure DNS Server

vi /etc/resolv.conf

1	vi /etc/resolv.conf

add following line:

nameserver 8.8.8.8
nameserver 8.8.4.4

1 2	nameserver 8.8.8.8 nameserver 8.8.4.4

Now restart…

How to setup network after RHEL/CentOS 7 minimal installation

March 14, 2016August 22, 2016

After installing RHEL/CentOS 7 minimal, You may not able to connect network in that machine. This will happen because Ethernet interfaces are not enabled by default. This guide explain you to setup network on RHEL/CentOS 7. Setup network on CentOS 7 minimal First, type â€œnmcli dâ€ command in your terminal for quick list ethernet card…

Deleting contents of a mailbox

January 21, 2016August 22, 2016

So came across an account that had 450000 items that were log files that were being captured in a mailbox. I wanted to delete all the enteries with powershell instead of going through the GUI. Here the command I used to get it done:

Search-mailbox -Identity user@domain.com -DeleteContent -Force

1	Search-mailbox -Identity user@domain.com -DeleteContent -Force

Creating a Picture Policy to use with Office365

January 18, 2016August 22, 2016

With Office365 you can have profile pictures, and this setting is enabled by default. In larger organizations you may not want this policy enabled or have a customized policy for different departments. Here’s what I had to do to disable the picture upload capability by default and use powershell to update it for individuals by…

Find out Windows version from an ISO file

January 18, 2016August 22, 2016

So we download a lot of .ISO file from various sources. I needed to install Windows 10 x64 Pro and was having trouble identifying which was which from the different versions I had been testing. This was important to me because I needed to know if it was Retail, VL, or MSDN. This should work…

How do I enable or disable anonymous LDAP binds to Windows Server 2008 R2 Active Directory (AD)?

January 15, 2016August 22, 2016

By default the setting is set to <not set> meaning it is disabled. I strongly recommend against this. Many applications communicate with directory services through LDAP, but the LDAP Request for Comments (RFC) specification stipulates that an LDAP bind should support the passing of a credential. Connecting anonymously really shouldn’t be needed. You may have…

Transferring FSMO roles (2003-2012)

January 11, 2016August 22, 2016

Note: if you do not know what the “FSMO” roles are, or wish to know more, please see this link: Operations master rolesThis is a well-known subject among Active Directory administrators.Even before Windows 2012, there was no lack of choice in the methods allowing us to transfer the FSMO roles: If there were only two…

How to manually uninstall a printer driver in Windows

January 7, 2016August 22, 2016

Came across an interesting issue today where I was unable to remove the printer drivers. I got the message that the printer is in use and therefore cannot delete the drivers. Here’s what I did to get the printer: Goto ‘Services’ under ‘Administrative Tools’, and restartÂ the ‘Printer Spooler Service’. Click the Start menu and in…

Delete the Lync or Skype for Business SIP profile from a Windows computer

November 18, 2015March 14, 2016

When a Lync 2010/2013 desktop client for Windows signs-in, to minimize the bandwidth consumption the Lync client retrieves a lot of information from cache.Â This cached information is stored in the users SIP Profile in a folder named sip_(SipURI of the user) located on a Windows computer in the following folder: Lync 2010:Â %UserProfile%\AppData\Local\Microsoft\Communicator\ Lync 2013:Â %UserProfile%\AppData\Local\Microsoft\Office\15.0\Lync…

Exchange 2010: Moving Messages to Another Working Queue on another CAS Server

September 21, 2015August 22, 2016

One of my CAS Hub servers was acting up and startedÂ queuing email. I needed to move the message to another working server while I needed time to troubleshoot what was causing the queuing. This is what I had to do. On the non working server: Create a Folder on C: called MailsExport Open Exchange Management…