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About MAC Address Lookup Tool
MAC Address Lookup Tool searches your MAC Address or OUI in mac address vendor database. The MAC Address vendor database consists of a list of mac addresses of all devices manufactured till date. Finding the mac address from this database tells us which manufacturer originally manufactured this device and what is the prefix, postfix of a given mac address, moreover it tells us what country was this device manufactured. All this information is useful if you want to verify the generated mac address with the original vendor of this device in OUI vendor database.
What is a MAC Address?
MAC Address or media access control address is a unique ID assigned to network interface cards (NICs). It is also known as a physical or hardware address. It identifies the hardware manufacturer and is used for network communication between devices in a network segment. MAC Address usually consists of six groups of two hexadecimal digits.
The network adapters or network interface cards always come with a MAC address which is fed into hardware, usually in read-only memory (ROM), or BIOS system. The physical address is stored into the NIC by its manufacturer, that is why this address is also called a burned-in address (BIA) or ethernet hardware address.
There are several NIC manufacturers; some well-known of them are Dell, Cisco, Belkin. The first three sets of two hexadecimal numbers in a MAC Address identifies the card manufacturer, and this number is called OUI (organizationally unique identifier). OUI is always the same for NICs manufactured by the same company. For example, let's say a network card manufactured by dell has a physical address:
00-14-22-04-25-37
, in this address, 00-14-22
is the OUI of Dell which identifies that the device is by Dell. It may be interesting for you to know that all the OUIs are registered and assigned to the manufacturers by IEEE.How to Find MAC Address?
To find MAC Address, see the instructions given below for popular operating systems.
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How to Find MAC Address in Windows?
- Go to Command Prompt
- Press Windows + R
- Type
cmd
and press Enter - Click Start Button
- Type
cmd
and press Enter
OR Digital pen for mac.- In Command Prompt, type
ipconfig/all
and press Enter - And locate for the 'Physical Address' or 'HWaddr' field. The Physical Address should be in format
M:M:M:S:S:S
. For example:00-14-22-04-25-37
How to Find MAC Address in MacOS?
![Mac Mac](/uploads/1/1/8/0/118023058/218792118.jpg)
- Click on Apple Menu (usually on top left corner), and click
System Preferences
- In
System Preferences
, clickView
menu and selectNetwork
- In the
Network
window that just opened, click theWi-Fi
,Ethernet
, orAirport
icon on left. - Now click
Advanced
on bottom right. - From the upper menu, click
Hardware
, and look forMAC Address
field. - Your
MAC Address
should be in the format:M:M:M:S:S:S
. For example:00-14-22-04-25-37
How to Find MAC Address in Linux or Unix?
- Perform the following as super user (or with appropriate permissions)
- Type
ifconfig -a
- Look for 'eth0'. This is your default ethernet adapter
- Now locate the field 'HWaddr'. The value displayed next to it is your MAC Address.
- Your MAC Address should be in this format:
00-14-22-04-25-37
- Type
How to Find MAC Address in iOS?
- Open
Settings
app. - Tap on
General
option in settings. - Now tap on
About
option. - Locate the field
Wi-Fi Address
- The value against this field is your MAC Address
- Your
MAC Address
should be in the format:M:M:M:S:S:S
. For example:00-14-22-04-25-37
Finding a MAC Address in Android
- Method 1:
- Open
Settings
app. - Select the option
Wireless & Networks
- Select
Wi-Fi Settings
- Select
Advanced
, and your wireless network card's MAC Address should appear here.
- Open
- Method 2:
- Open
Settings
app. - Select the option
About Device
- Tap on the option
Hardware Info
- Select
Advanced
, and your wireless network card's MAC Address should appear here.
- Open
This article is for IT Admins who want to configure Firefox on their organization's computers.
If your organization uses private certificate authorities (CAs) to issue certificates for your internal servers, browsers such as Firefox might display errors unless you configure them to recognize these private certificates. This should be done early on so your users won’t have trouble accessing websites.
You can add these CA certificates using one of the following methods.
Starting with Firefox version 64, an enterprise policy can be used to add CA certificates to Firefox.
- Setting the ImportEnterpriseRoots key to true will cause Firefox to trust root certificates. We recommend this option to add trust for a private PKI to Firefox. It is equivalent to setting the 'security.enterprise_roots.enabled' preference as described in the Built-in Windows and MacOS Support section below.
- The Install key by default will search for certificates in the locations listed below. Starting in Firefox 65, you can specify a fully qualified path (see cert3.der and cert4.pem in this example ). If Firefox does not find something at your fully qualified path, it will search the default directories:
- Windows
- %USERPROFILE%AppDataLocalMozillaCertificates
- %USERPROFILE%AppDataRoamingMozillaCertificates
- MacOS
- /Library/Application Support/Mozilla/Certificates
- ~/Library/Application Support/Mozilla/Certificates
- Linux
- /usr/lib/mozilla/certificates
- /usr/lib64/mozilla/certificates
- Windows
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Setting the 'security.enterprise_roots.enabled' preference to true in about:config will enable the Windows and MacOS enterprise root support.
Windows Enterprise Support
Starting with version 49, Firefox can be configured to automatically search for and import CAs that have been added to the Windows certificate store by a user or administrator.
- Enter “about:config” in the address bar and continue to the list of preferences.
- Set the preference 'security.enterprise_roots.enabled' to true.
- Restart Firefox.
Firefox will inspect the HKLMSOFTWAREMicrosoftSystemCertificates registry location (corresponding to the API flag CERT_SYSTEM_STORE_LOCAL_MACHINE) for CAs that are trusted to issue certificates for TLS web server authentication. Any such CAs will be imported and trusted by Firefox, although they may not appear in Firefox's certificate manager. Administration of these CAs should occur using built-in Windows tools or other 3rd party utilities.
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Firefox version 52: Firefox will also search the registry locations HKLMSOFTWAREPoliciesMicrosoftSystemCertificatesRootCertificates and HKLMSOFTWAREMicrosoftEnterpriseCertificatesRootCertificates (corresponding to the API flags CERT_SYSTEM_STORE_LOCAL_MACHINE_GROUP_POLICY and CERT_SYSTEM_STORE_LOCAL_MACHINE_ENTERPRISE, respectively).
Note: This setting only imports certificates from the Windows Trusted Root Certification Authorities store, not corresponding Intermediate Certification Authorities store. See bug 1473573. If you are experiencing “unknown issuer” errors even after enabling this feature, try configuring your TLS server to include the necessary intermediate certificates in the TLS handshake.
MacOS Enterprise Support
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Starting with Firefox 63, this feature also works for MacOS by importing roots found in the MacOS system keychain.
Linux
Certificates can be programmatically imported by using p11-kit-trust.so from p11-kit (add the module using the “Security Devices” manager in Preferences or using the modutil utility).
Preload the Certificate Databases (new profiles only)
Some people create a new profile in Firefox, manually install the certificates they need, and then distribute the various db files (cert9.db, key4.db and secmod.db) into new profiles using this method. This is not the recommended approach, and this method only works for new profiles.
Certutil
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You can use certutil to update the Firefox certificate databases from the command line. Check the Microsoft support site for more information.