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Home > Trend of intelligent safety helmet industry

Trend of intelligent safety helmet industry

Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.

Why choose us

Solutions to meet different needs

Solutions to meet different needs

We provide exclusive customization of the products logo, using advanced printing technology and technology, not suitable for fading, solid and firm, scratch-proof and anti-smashing, and suitable for various scenes such as construction, mining, warehouse, inspection, etc. Our goal is to satisfy your needs. Demand, do your best.

Highly specialized team and products

Highly specialized team and products

Professional team work and production line which can make nice quality in short time.

We trade with an open mind

We trade with an open mind

We abide by the privacy policy and human rights, follow the business order, do our utmost to provide you with a fair and secure trading environment, and look forward to your customers coming to cooperate with us, openly mind and trade with customers, promote common development, and work together for a win-win situation.

24 / 7 guaranteed service

24 / 7 guaranteed service

The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems

Certificate of honor


CONTACT USCustomer satisfaction is our first goal!

Consultation hotline:0086-15900663312

Address:No. 3888, Hutai Road, Baoshan District, Shanghai, China

Trend of intelligent safety helmet industry

Fix a DNS resolution failure - Mac OS X Hints

Fix a DNS resolution failure - Mac OS X Hints

My, network has a Fedora 11 box acting as a ,server, with BIND ,DNS, and DHCP running on it. Originally, I'd been publishing both ,my, BIND and internet router as primary and secondary ,DNS servers, respectively via DHCP. After removing the internet router as a secondary ,DNS,, leaving only the BIND ,DNS,, ,my, MacBook magically began to work again.

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DNS Server Address: What is it and Why is it Used?

DNS Server Address: What is it and Why is it Used?

DNS, stands for ,Domain Name System,. It is a method for naming the resources that are connected to the Internet or any other private network and has been serving us since 1980. Domain names are translated to IP addresses to locate the device that is connected to a network.

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Which DNS Server Should You Use On Your Computer ...

Which DNS Server Should You Use On Your Computer ...

25/3/2012, · To find your current ,DNS server,, type ‘ipconfig /all’ at the command prompt and look for the “,DNS Server,” entry under Ethernet adapter. The speed at which a ,DNS server, can resolve domain names into IP addresses depends on its geographic location among other factors.

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DNS Servers - What's My DNS?

DNS Servers - What's My DNS?

What is a ,DNS server,? A ,DNS, (,Domain Name System,) ,server, is what your computer, tablet, phone, or other Internet connected device (even your smart TV) uses to look up ,DNS, records which translate domain names like www.google.com to an IP address like 192.168.2.1.This is required because computers use IP addresses to communicate with each other, but these are hard for humans to …

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DNS Servers: What Are They and Why Are They Used?

DNS Servers: What Are They and Why Are They Used?

8/5/2020, · A ,DNS server, is a computer ,server, that contains a database of public IP addresses and their associated hostnames, and in most cases serves to resolve, or translate, those names to IP addresses as requested. ,DNS servers, run special software and communicate with each other using special protocols.

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How To Find Out The Current DNS Server You Are Using

How To Find Out The Current DNS Server You Are Using

Well, you can any website domain instead of Google.com. The command will list you the current ,DNS server,. So, these are the two CMD commands to know ,DNS, on Windows computer. Check ,DNS Server, – ,Mac, & Linux. Well, on ,Mac, and & Linux based computers, you need to enter the same CMD command to know what ,DNS server, you are using.

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What is My DNS Server? 4 Methods to check DNS Server IP ...

What is My DNS Server? 4 Methods to check DNS Server IP ...

1/8/2020, · ,DNS server, is a computer ,server, that contains a database of public IP addresses and their associated domain names. When you enter a domain name into your web browser, if your router does not have enough information to do the domain name to IP address conversion, it uses the help of a ,DNS server, to perform this conversion by connecting to one of the available ,DNS servers,.

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macos - How do I check what DNS server I'm using (on Mac ...

macos - How do I check what DNS server I'm using (on Mac ...

That is the ,DNS server, your ,mac, is using. Your router is running a caching ,DNS server,, and setting itself as the ,DNS server, via DHCP. If you login to your router, you might be able to find out which ,DNS servers, it …

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Deleted my default DNS servers | MacRumors Forums

Deleted my default DNS servers | MacRumors Forums

2/8/2016, · I accidentally deleted the default ,DNS server, of the WiFi Interface in the Advanced menu of the Network pane in System Preferences. (Image here) Without it, I can't access the Internet on ,my, that ,Mac,. Any Ideas? Right now, I'm using Google's Public ,DNS, but I would like to retrieve ,my, old ,DNS server, back.

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How to Fix DNS Server Not Responding Errors

How to Fix DNS Server Not Responding Errors

17/6/2020, · As an alternative to the private ,DNS servers, supported by each provider, several providers, most notably Google and OpenDNS, offer free public ,DNS servers,. A router administrator can switch their network's ,DNS, setup over from a private to a public ,DNS, configuration by manually entering the public ,DNS, IP addresses into the router configuration settings.

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