I’m going to talk about this issue
Many scientific ways to get online
The relatively best one is the “intranet line”
Which is what you often say
“IPLC” and “IEPL” lines
Then I will tell you
Some things that few people in the industry know about in the intranet airport
This issue must be watched carefully
What I’m talking about are things that non-industry people rarely mention
Very valuable to you
Figured out what I’m talking about in this issue
Will directly help you judge the quality of the intranet airport
Advantages and disadvantages of intranet lines, etc.
Besides
I will help you crack some
Some rumors about intranet lines
Or misinformation
First be clear
What I’m going to talk about next is the general situation
If what I said and what you know
Or the actual situation does not meet
Please understand
May be your case
Not a common situation
I just talked about going online scientifically
Did not say the word over the wall
The reason is
In fact, the intranet line is not strictly speaking over the wall
Because of the intranet line
Not subject to GFW review
Which is what you often say
IPLC and IEPL are not on the wall
the reason is simple
Intranet demand
Generally some large multinational companies or organizations
They proposed
Their hard requirements are stability, low latency and the best reliability
So the public network used by ordinary users
Naturally can’t satisfy them
The largest customers of intranet lines are also these institutions
Especially large multinational companies in banking and financial transactions
You think about these customers
How could it be like us ordinary netizens
Accept data packets to jump dozens or hundreds of times
And then risk the data packet loss in the vast ocean of the public network
So it’s natural
They have intranet needs
International dedicated lines save a lot of jumps and forwarding
Maximum degree of reliability and stability
Dedicated intranet line
Naturally, it is not subject to public Internet and international export inspections
That is, what you said is not a wall
About IPLC “International Private Leased Circuit”
And IEPL “International Ethernet Private Line”
Specific underlying principles
I won’t elaborate
Few people need to know these things
But a few points
I can briefly mention
First IPLC and IEPL
Are all intranet lines
The so-called intranet refers to the transmission of data through the internal network
Do not go to the public network
Combined with what I said in the seventh issue
OSI model IPLC is through the physical layer
Local area network formed by connecting two points to each other
IEPL connects point-to-point or multipoint-to-multipoint connections through the data link layer
Whether it is IPLC or IEPL itself
In fact, the group is all intranet
Want to connect to the Internet through the intranet
Still need an extra step
Is to forward the data to the public network
Let me give an example
For example, I am in Guangdong
Then connect to you in Hong Kong through IPLC
Between us is the IPLC intranet line
Data can be exchanged between us
But none of us can access the public internet
Can’t see youtube
I can’t use WeChat
To put it bluntly, whether it is IPLC or IEPL
Are just circuits responsible for sending data
Does not have the ability to access the Internet
Intranet
Just connect two points
Want to access both ends of the public network IPLC
Still need to connect to the local computer room
Reconnect to the internet
I’m going to mention one here
The concept of global IPLC
The so-called global refers to your data package
Directly enter the intranet dedicated line
Without skipping
Directly transmitted to the outlet of the dedicated line
But we use the dedicated intranet line through the airport
The actual situation is not IPLC global
But through your local network
Cell network
Then connect to the internet
Then connect to the IPLC transit node
Only entered the dedicated line at this time
Then the data is sent to the external transit node of the intranet
It’s no longer a dedicated line at this time
Then access the public network to access the services you need
So-called intranet dedicated line
It’s actually just a short section in the middle
IPLC is a pure physical layer transmission circuit
The technical realization is through “TDM”
Which is “Time Division Multiplexing”
Data transmission realized by “time division multiplexing”
Very low time difference through
To distinguish different users and business data
Essentially needs to rely on a router
IEPL is a pure Ethernet circuit
Communication through MAC address between devices
A layer of routing equipment is missing
Compared with IPLC, the delay can be lower
By TDM, also known as “Time Division Multiplexing”
The resulting jitter will also be reduced
But the difference between these two is not very big
Basically negligible
I’ll talk about it as one thing later
Which services are carried on these transmission circuits
Those layers above include the network layer
The transport layer session applies these layers of things
In the OSI model
IPLC is the circuit of the first physical layer
IEPL is the link layer circuits are just circuits
It has nothing to do with the Internet and the public network
Speak more bluntly
For example, this network cable
You can understand it as a dedicated line
But the network cable itself
If there is no optical cat
No internet access
The two ends connected are the LAN
This is the so-called intranet
There are several main advantages of the intranet
The first one is low latency
The second is high stability and reliability
The third is not to be censored
How is low latency achieved?
It’s very simple that there is no extra jump
This is actually easy to understand
This network cable connects to two points
How do you jump in the middle of your data transmission, right?
No jump
In the public network environment
For example, we visit a website
Data within a few milliseconds to tens of milliseconds
Through the cell network
Parsed by the local server
Departure from Guangdong to Hong Kong to enter the dedicated data packet
Before entering the dedicated line
It may be sent dozens of times after the jump
Although the intranet line says there is no way to save you
At the beginning, the local server in this segment of the community network parsed the delay of these things
But when crossing the border
You can understand it as almost zero bounce
This is much stronger than many 163 and CN2 lines
CN2 line from Shanghai to Japan
The delay is around 40 milliseconds
But the Shanghai-Japan IPLC dedicated line
The lowest delay can be 25 milliseconds
Shenzhen and Hong Kong can achieve 5 milliseconds
120 milliseconds from Shanghai to West America
Shenzhen to Singapore 45 milliseconds
The next advantage is stability and reliability
This is also easy to understand
Few people use dedicated lines
Not affected by the public network
Naturally high stability and reliability
You need to know
The general dedicated line is the data center of a multinational company who is using bank securities to trade
And CDN content distribution services
Can satisfy their stability and reliability
Not to mention to you, right
The last advantage is
Just what we used
Not censored
Intranet lines need to be reviewed
It is difficult to become a dedicated internal network cable in the true sense.
The other is because the relative cost is relatively high
In addition, the qualification requirements are relatively high
And the main users
Are used by some large multinational companies
It is difficult to have specific policies implemented
It’s like someone rented your house
Even if you are the landlord
I can’t just go into the house without saying hello, right?
So it happens to be
Used by us to use the Internet scientifically
Let me focus on the shortcomings below
That’s the price
Here you pay attention
I say that price is a disadvantage, not expensive
But the price you can buy
It depends on who you buy
For example, if you can buy a dedicated line from the source of China Unicom
The price may be much cheaper than CN2, right?
But you are not qualified
So can’t buy
So you can hardly buy it from upstream
Generally can only be bought through the following distributors
After the dealer has passed a few levels
Although there is no such strict qualification requirement
Even arrived at the airport
For example, the airport sells intranet lines for ordinary users like you and me to use
No need to look at your qualifications
But the price is much higher
But even if it is expensive
It’s just relative
How much is the specific IPLC
There is no way to quote
You need to present your specific needs to the operator
Type of data carried and service bandwidth
Then the operator will give you a quote
In addition, it also depends on the physical distance
Is it a submarine cable or a terrestrial cable
Laying cost etc.
For example, the land optical cable dedicated line of Shenzhen and Hong Kong
While laying
The cost is naturally the same as the submarine optical cable from Shanghai to the US West
Submarine Optical Cable from Shanghai and Japan
The cost is not an order of magnitude at all
So the price will be much worse
I’ll show you
This picture is the price of Unicom’s Shanghai to Hong Kong intranet dedicated line
You can see the bandwidth of 1.5M and 2M
It’s 20,000 to 20,000 per month, respectively.
This picture shows China Unicom from Shanghai to Los Angeles, USA
That is the price of the US West special line
You can see 1.5 megabytes and 2 megabytes
The prices are 110,000 and 110,000 5
The same is the intranet dedicated line
One takes the terrestrial fiber optic cable
One is taking the submarine optical cable
And the distance is much worse
The price can be as low as 5 times
In addition to physical distance
Because it is rented
How much bandwidth do you rent
Also directly determine the price
So I can only tell you
Different dedicated lines of IPLC
The price is completely different
Shenzhen, Hong Kong and Shanghai and the United States are completely two orders of magnitude prices
I’m here to dispel the rumors exclusively for you
Those on the Internet that say IPLC is expensive or IPLC is cheap
May be all right or all may be wrong
There is also a tricky
It means you see who you are looking for to buy
For example, China Telecom and China Unicom’s own international dedicated lines
I usually find a secondary distributor
Secondary distributors will also find their distributors
The more you go down, the more expensive
But the more you go up, the more difficult it is
The higher the qualification required
It depends on the person
If you can buy it directly from Telecom
It must be direct sales at the factory price
So I always said
Let you suggest pick some big airports
This is the truth to a certain extent
Many IDC data centers and large airports
Does have some qualifications higher than others
Can buy lines directly from secondary dealers or directly from China Telecom Unicom
Naturally cheaper
Naturally, the less he will be kidnapped by the upstream
When I tell you about the airport
Tell you in detail
Except for price differences caused by distributors
There are also many solutions for IPLC itself
The same, for example, the Shenzhen-Hong Kong line may have multiple plans
The delay may be slightly different
But it will be directly reflected in the price
There is also the true and false IPLC that you often pass on
There is also said that Ali’s IPLC is not a real IPLC
Let’s not say that Ali puts multiple data centers
Does it count as IPLC if it is connected through the intranet?
Export traffic, 免费vpn but the wall can’t deceive people, right?
I don’t really need to worry about this
It doesn’t matter whether it is true or not
IPLC is just such a small piece of transit data.
What you really should care about
It is still the two segments before access to the dedicated line and the public network outside the country
Anyway, crossing the wall without review is IPLC
It’s the biggest feature for us
Time delay and stability are relatively ethereal to us
Unless you live at the entrance of IPLC
Your data package can be directly connected to IPLC to realize global IPLC
For example, I am in Guangdong
Use Ali’s intranet
Or use the airport’s IPLC dedicated line
I went to Shenzhen and Hong Kong IPLC, the experience is actually not much difference
But if you are in the northeast
The data packets you access to the Shenzhen-Hong Kong line are forwarded dozens of times
It took tens of thousands of kilometers to access the Shenzhen-Hong Kong special line
If you take the Shenzhen-Hong Kong special line, you may leave the country after walking tens of kilometers
Which section do you think is more important
to be honest
For those of us who circumvent the wall in the mainland,
But the wall is the most important
No need to consider so much stability and reliability
These factors are not unimportant
But for those of us who use the Internet scientifically
The advantages of these intranets are only reflected in the transit period.
The biggest significance of IPLC to us is that the exit method is stable and reliable
Don’t worry about which day, for example, shadowsocks or V2ray encryption is unreliable
You can’t use it, you can’t climb the wall, right
In theory, you can always use IPLC to access overseas services
Unless there is a war
Or the submarine fiber optic cable or the terrestrial fiber optic cable out of obstacles
In addition, I will tell you a little knowledge
Upstream suppliers are billed through bandwidth for selling lines
Only downstream or restricted by upstream
Will be billed according to traffic
This kind of restriction probably means that their lines are not of good quality
May have turned hands many times
Note that what I am talking about here is that the line provider does not mean the airport
It is very normal and necessary for airports to charge by traffic
Here I will solve a myth for you
That is, many people blindly think that the intranet lines IPLC and IEPL are awesome
Then I feel that the intranet line is air every second every second
Semantically correct, intranet lines are cattle
But do you remember the example I gave you just now
I take this network cable
This is the intranet line
I say this network cable is invincible
But what about your cat, what about your router, what about your network card, and what about your export bandwidth?
These other hardware devices and indicators
On the matter of scientific Internet
Although the intranet line is said to be bull
But it is also limited to access to the computer room
This section of the public network connecting the internal network to the Internet
There is also the bearer operation and maintenance of the internal network itself
There are also questions about whether the load balance of the airport is oversold
I will tell you one by one
This section of the IPLC intranet you used for cross-border is no problem
But this paragraph before you connect to IPLC
It may be BGP in most cases
If this paragraph is not well done
Packet loss congestion QoS
You have a delay of more than 500 milliseconds before connecting to IPLC
Then your IPLC has a delay of one millisecond and no packet loss at all. 1G bandwidth
Isn’t that important anymore
Because no matter how good this intranet is
Your experience will be terrible
This is the barrel effect I used to talk about before
This is the important point that distinguishes the airport from being good or bad.
Is the airport technically capable
Can optimize the channel before sending their customer’s data to the intranet line
IPLC export section access to overseas network services
This end is the same as the entry end before entering the intranet
Is also facing a bunch of optimization problems
And this paragraph is overseas, right
Unfamiliar places in life are often more complicated
So set up an intranet
Except for the room at both ends
Access to the local public network is also a technical threshold
Finished talking on both ends
Let’s just talk about the intranet line itself
Even in the internal network line, there are a lot of troubles
Here I will talk to you about some of the things behind the operation of the airport
Very valuable, listen carefully
For example, there is an airport
Bought 10 private lines of upstream IPLC
One line is 100,000 yuan a month
That one month’s cost is 1 million, right?
The airport has to be resold to 1,000 customers like you
Without profit
Let these 1000 customers share these 10 lines
It’s 1,000 yuan per person, right?
1000×1000=1 million
At this time, the airport has to build its own server
To dynamically allocate your 1,000 customers
How to allocate these 10 intranet lines
Surely you can’t let everyone access one line at the same time, right?
Even the IPLC will be heavily congested and cause the line to blow up
Load balancing needs to be done at this time
For example, a certain line will be disconnected when the load is high
Let others use other lines
That’s why sometimes
Others can use a certain line, you can’t use it
It’s probably because he is already using this line
And you exceeded the threshold when you connected
Show Ping is not working
You can only choose other routes
If you don’t understand the principle at this time
You will go online and say that a certain airport exploded and it was difficult for a thief
Then the airport host will not be angry with you and will not accept your refund
Because you don’t understand and you don’t understand
Besides
When the airport is doing its own load service
It is also necessary to invest in the cost of technicians in the computer room.
This is the so-called operation and maintenance
Continue back to the airport
Didn’t the airport say that it sold 1,000 to customers like you?
Later, the airport found the cost of 1 million
Sold to you 1,000 people
1,000 yuan per person
It just flattened the cost of purchasing the route
Did not make a penny
Plus the operations and personnel of the airport itself
If there is no profit, even if you don’t say that you have to pay back
At this time the airport decided
If you continue to sell only 1,000 people
I’m afraid I will lose even my panties
So I can only sell 1,000 more people
In this way, the airport has 2000 users, right?
At the same time, the cost is eliminated
With an additional profit of 1 million
Use these profits to pay employees and make profits
But found that there are now 2000 users
The line cannot carry so much data
So it will limit everyone’s traffic
For example, one person a month will restrict you to 1T of traffic
After doing it for a month
I found that it didn’t work or I couldn’t carry it
So let everyone only have 500G of traffic
Found it can carry it
And there is redundancy
So I made some small functions that log in and give extra traffic randomly.
Or to open this kind of recommendation code like “Affiliate”
Let you help them to promote
Or optimize these mechanisms for your own load balancing
Find ways to get 2000 users
Diversion of the time and route used
Avoid peak congestion
Or expand the capacity and buy more lines
At this time, it depends on the technology and operation and maintenance capabilities of the airport.
Some airports also cost 1 million
May be able to ensure smooth user experience for 3000 customers
Some airports may not be technically capable
In other words, the operation and maintenance of load balancing cannot be done
1,000 customers may not do well
Then these airports are slowly being eliminated
There are some situations
For example, the same 3000 users
Some airports purchase lines from upstream dealers
The price you get is cheap, right?
Some airports cannot get high-level dealer lines
Will result in a big difference in fees
Some airports may be due to technical problems
Or the problem of operation and maintenance capabilities
Or the problem that the upstream purchase price has no advantage
If there is no competitiveness, you can only oversold and oversold.
Not all airports
All want to destroy the user experience and oversold to make money
But you also have to fully understand the points I just said
Increase the number of lines by 10 times
Then add 10 times the customer and combine all the factors I just mentioned
Combine it together in various situations, right?
You can imagine how much difference there can be in actual use
So the reason why the big airport can be bigger
Basically have real technology
In other words, you can get a relatively low-cost line rental price
There are occasional runaways in small airports
You can understand it
Can’t make money and not even a big airport
You can only close the door, right
Just said so much
In fact, it is to show that it is not invincible that the internal network line
A congested intranet line
Coupled with the poor technical ability to deal with the load
May not be as good as CN2
Or 163 backbone network
It may not be as good as your own VPS line.
So please don’t blindly believe in the so-called intranet airport
You have to make specific judgments
I’ll share a situation for you
Judge the truth for yourself
I just said to share with you what I heard
I was also an ordinary circumvention user before
No one knows
But in the past few months
Because you guys are very supportive
Help me get the channel size up
So now I am fortunate enough to meet some people inside the airport
The bosses of two big airports talked to me privately
Intranet lines are sold to individual users like us
Even if the charge is several hundred a year
You think expensive
But the airport is often not profitable
May have to post money back
The profit of some intranet airports lies in the
Which is To B
Personal business can only be said to maintain the cost
In other words, the profit is very low
Just for word of mouth and popularity
Then after the word-of-mouth popularity is up
We still have to rely on To B’s business to make money
When I first heard a boss say this
I still don’t believe it
Later another airport boss told me the same
Also showed me some prices of some internal procurement lines
I was a little shaken
May indeed be the case
Some of you may ask
Why are there so many big airports
Don’t you make money?
This brings me back to the questions I mentioned earlier, right?
There are many customers who have the technical ability to load well
In other words, the price of the line purchased upstream has an advantage and is cheap
May still earn
May even make a lot of money
But not all airports
All have the ability to buy cheap and high-quality lines
Some may indeed only be maintained
Some may indeed pay for a month
In fact, what kind of business is like this, this is easy to understand
In fact, many airports rely on corporate business
Or other businesses make money
So we as individual users
Stop complaining so much
The cost of the intranet dedicated line is really high
Pay attention to the situations I just mentioned
It’s all about the intranet airport
Other ordinary airports may also have parts that you can bring in
But what I just talked about was the intranet airport
What i learned
Since I mentioned the line supplier just now
Then I’ll talk more
I use the IPLC of Hanamaki Technology myself
This is not a pinch, let me emphasize it again
Hanamaki doesn’t make the airport by herself
They are regarded as a dedicated line dealer
Are they directly connected to telecommunications
I’m not sure about the leased line bought directly from Telecom
But look at the price and service
I think Hanamaki is not bad
Some airports and data centers
Because of qualification issues
May not be able to directly connect to top providers like Telecom
They can only buy Hanamaki or other
Tier 2 suppliers like Hanamaki
Buy lines from them
Some went to the airport after buying the line
Some of these lines that bought Hanamaki
Be a downstream distributor of the downstream route
There is a big airport
According to people familiar with the industry
The boss of the airport and the boss of Hanamaki
Is a good friend relationship
Therefore, the price of Hanamaki’s line sold to this airport is relatively low
Then this airport does better
Because of this hard advantage
In a state of crushing other opponents in peer competition
So I don’t care much about customer service and my reputation
Then I was also a user of this airport
Use Hanamaki’s IPLC line through this airport
But then something happened
I won’t use it anymore
Because their customer service treats himself as an uncle
Treat our customers as grandchildren
Then i feel
I think there is an advantage
Can’t be so waved, right
Otherwise, it would be ugly to be counter-killed
The information I just mentioned
It’s all just i want to share with you
I know only the information
In fact
No matter what I said about Hanamaki’s special line
It is also the private line of the top provider of telecommunications
Changed hands several times
Is the load balancing and operation and maintenance of each company oversold?
In fact, they are all part of the barrel effect
For example, AK me
Suppose I bought an IPLC directly from Telecom and sold it to three airports
Three airports have sold scientific services to you
If the airport operation and maintenance and load are not well done
You are directly affected
none of my business
But if my own operation and maintenance load cannot do
Will affect all the airports below me
And all of you under the airport
If we say that telecommunications are not doing well
Under telecommunications, under me, under me, under me, under the airport, all of you under the airport, all bombed
So some big airports with good experience
Because there is little upstream
Not affected too much
Small airports often do not have the advantage of purchasing
Cannot connect to some upstream resources
It’s easy to be affected by the above layers
So the relative experience is poor
Also I mentioned Hanamaki
Because Hanamaki’s Shenzhen-Hong Kong route is an advantage for me
I haven’t used other lines in his house
Do not comment
Other IPLC suppliers
For example, there are more well-known suppliers such as CloudIPLC on the Shanghai-Japan line.
What I’m telling you all are the principles and things in the industry
Don’t blindly trust any of the suppliers and airports I mentioned
Everything depends on your actual experience
Next, let me talk about the running problem
Some time ago a well-known big airport said it was gone
Affects a lot of people
But they don’t run for the sake of running away
Also out of helplessness
It seems that third-party payment services are restricted
So I had to shut down
In addition, they can do the finishing touches
Transferred existing users to another airport
The reason they run is
A user messed up and related departments intervened in the investigation
The airport will cooperate
And finally closed
So I have repeatedly emphasized that after overturning the wall
To restrain one’s own behavior
This is the truth
Relevant departments will not talk to you because of your behavior of escaping the wall
It’s because you have done some of these behaviors that may endanger national security after you overcame the wall.
I’ll talk to you
The airport also has this kind of distress
Because there are too many users, it’s not easy to control everyone.
With fewer users, you can only increase the price and make it harder to sell
So I understand them
They are the first responsible person when something goes wrong
Here I will share with you one more thing about airport inspection
That’s why some big airports
Will ask for 免费vpn your personal information
I know you guys don’t like and support this
Even called the patriotic airport
But what you don’t know is
The bigger the airport connects to the upstream line
The closer you are to the top, the closer you are to telecommunications
The stricter
The reason why the big airport is big
Because they are doing serious business
It is also a legal line
Nominally for these multinational companies doing business
And these requirements for legitimate overseas network service access
Then we must abide by the relevant laws and regulations of the country
So you need to count user information
It is convenient to cooperate with the investigation after something goes wrong
The purpose is to track down the individual
Intranet lines IPLC and IEPL themselves are not subject to censorship
But take the Shenzhen-Hong Kong special line as an example
Although the section from Shenzhen to Hong Kong has not been censored
But from you to the part before the dedicated line
In theory, you can be censored through the airport
In addition, service providers like Alibaba Cloud
It is also possible to audit the traffic within the network
So if you think
It’s safe to use the intranet line
You can sit back and relax
You are so wrong
It is always necessary to restrain one’s own behavior
So please understand
If you are a serious user like me
There is nothing to worry about or fear
Of course if you really mind
You can choose those other
Airports that do not require your personal information
So I said before
Network information age
No real data security
Your personal data
Can leak out in any form
So either completely disconnected from the Internet and derailed from the world
Either the maximum degree of self-protection is enough
Of course if you do something illegal
You have to be careful
It’s like there is a camera on a main road
Cooperate with our country’s Sky Eye project
The daily traffic may be tens of thousands of people
Who would usually stare at the camera to see your privacy one by one
See who you are
Unless you catch the criminal, right?
Our personal information
In internet traffic
Like a drop of water into the sea
Filter you out individually
It depends on the need and value
Personal Information of Us Ordinary People
Actually it’s not that important
Don’t take yourself too seriously
Finally, I spread some common sense to crack some rumors
First of all, IPLC does not mean fast
Just explained
The internal network cable is just a cross-border section.
What you should consider more
Delay in accessing the internal network cable from your own location
How about this delay
The second is the large bandwidth of IPLC
Is also a false proposition
Your upstream supplier
Directly determines the bandwidth of the IPLC
For example, I bought a 1G intranet line from Telecom
1G bandwidth
I can sell to you
The limit is a trillion
All are IPLCs, all are dedicated lines for telecommunications
Still that sentence, you have to look at your upstream
If we talk about the airport
It depends on how much bandwidth the airport gives you
So it’s not that IPLC bandwidth is bigger
These are two concepts
Must the third IPLC be stable?
Not necessarily
The internal network line itself can be stable
However, it is affected by factors such as whether the number of users connected to the computer room is oversold.
Because the underlying transmission logic is time division multiplexing
More people used
The data exceeds the carrying capacity
Data will be stuck in the queue
Cause the line to collapse
Even CN2 line
It may be better than the oversold IPLC that you bought at your small airport and passed through countless dealers.
The fourth point is that IPLC is not a wall so it is safer?
Actually, it’s not necessarily true
Security is a very complicated topic
If you are interested, you can take a look at my eighth issue
The eighth issue has more than 1 million views
Finally, IPLC is not necessarily more expensive
CN2GIA’s US West Line
It may be much more expensive than Shenzhen-Hong Kong IPLC
So the specific situation is analyzed in detail
Finally insert a sentence after over the wall
Please restrain your behavior
Don’t touch national laws
Some bottom lines that are explicitly forbidden
Don’t spread
Some related content that endangers national security
You say that I am a pink five hairs out of the public. It’s up to you, right?
I can review your comments anyway
I will scold all those who curse
Then block you
remember
I tell you
It’s good for you to restrain yourself
About intranet lines
And some information on the intranet airport
I’ll share it with you all here
This is the tenth issue of the “Hardcore Over the Wall” series of videos
I will continue to update related content in the future
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