Fix the Windows and Outlook “Indexing Is Paused” Error

Method-1: Registry Tweak

1. 

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\

or

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search

2. Press “Windows Search” on the left, then double-click “PreventIndexingOutlook” on the right.

3. If you don’t have “Windows Search,” you can create it by right-clicking “Windows -> Edit -> New -> Key.” Name it accordingly, then create the “PreventIndexingOutlook” value by right-clicking an empty space on the menu on the right and selecting “New -> DWORD Value (32- bit).”

4. Once created, double-click it to adjust the “Base” to “Hexadecimal” and change “Value data” to “1,” then click “OK.”

5. Reboot Computer

Dovecot: Disconnected, connection closed, auth failed

 From webmin dashboard>Servers>Postfix Mail Server> Virtual Domains> Find specific user maping 

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How to append one file from multipe file in Linux

cat file1 file2 > file3

Fix: Wget HTTP request sent, awaiting response... 403 Forbidden

 wget --user-agent="Mozilla" https://www.domain.com/file.extension

or

 wget --user-agent="Mozilla" https://domain.com/file.extension

or

 wget --user-agent="Mozilla" www.domain.com/file.extension

How to add an additional IP address in Centos 7

Method -1:

Create file /etc/sysconfig/network-scripts/ifcfg-eth0:0 with the following content:

DEVICE=eth0:0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.0.11
NETMASK=255.255.255.255

service network restart

Method-2:

Run the following command

ipadd your_ip

Example: ipadd 192.168.0.1

Sovled ! Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist

 # sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*

# sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

or

# sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-Linux-*

# sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.epel.cloud|g' /etc/yum.repos.d/CentOS-Linux-*