If you have previously installed a GoagentX ，Then uninstall the，Then reinstall，Maybe you will find that even opened the PAC model，Also ran "global" status。
This，On ip138 can validate。
I try to use my own generated a variety of PAC，Results simply can't even get on the net😅
Then just see a message，This is the people[……]
Looks like this topic has been very fire Solarized，This is a terminal text color color scheme，Very nice，There are two kinds of light and shade，but，According to my own guess，Some more than it should be dark ......
Click below to jump to the official website。⬇️
Because the terminal is generally a little good-looking black😜
In short，The color theme for many terminals provides configuration files can be imported directly into，[……]
No matter what language you are learning，Will probably encounter a called MVC concept，It is a program development model，"Isolation and show" as the core，In the hierarchical framework has a great influence。
MVC Is a shorthand，Three uppercase letters corresponding to Model View and Controller 。
Now we create a application software，Many cases will bring[……]
In the C language which，To convert type does not seem to how difficult，The learning Swift when there is confusion。
Which of them seem to remember spoken tutorial，But remember，This has found，On record：
|
1 2 3 4 |
假定三个变量： var i:Int = 5 var f:Float = 3.3 var d:Double = 4.455 |
To convert to Double Int or Float ，It is as follows
[cr[……]
Do app using Xcode application development time，UI interface design what application is commonplace，But every time and then run the simulator to view the output of a very troublesome thing，Especially when you need to modify many elements、And the need to fit a variety of screen sizes with the time - after all,，Now iPhone product line is no longer so a single。
so，Breath simulator run three or four such things fear[……]
Since you want to learn programming，Then we should at least know their own learning is what it okay?
Speaking of programming，In fact, the earliest still have to catch up with our big brother Alan Turing God go。At that time Turing invented Turing machine - this thing is very fast hardware，Finish all had easily shortened to two years of World War II where we do not start speaking up，We say that the main，The Turing Machine，Basically it is the first computer!
of course，[……]
Now most of the high-level programming language，All evolved from the classic C language，You grammar which in these programming languages，More or less can be found in the shadow of a fraction of the C language，This is why a lot of people still recommend，From the C programming language into the language of the door。
but，C language is indeed a sufficient old，Many people are directed to write a program target learning to play the APP，You to learn C language ...... sorry，[……]
Swift recently started learning the，It is like "hello world" as，Each language seems to always have a "write Douban FM" project tutorial😶
In short，I started using this process taught to become familiar with the development process，but，Only yesterday did show playlists and display the song Cover，Today adds playback collapsed flash back!
Ok，Even the newly added[……]
If you want to know Ruby，Ruby or want to install several software packages on your computer，You can easily use RubyGems a key to download - just like in the Ubuntu apt-get、Similar redhat in the yum etc.。
so，Want to install Ruby packages，You will need to gem。but，Installation gem (except if your electricity[……]
In use xcode Make a program when，We generally use some pictures instead of stiff off button text，Make the interface more beautiful。
but，When adding pictures，I met when editing storyboard You can display，But the problem when the program is running, but can not be displayed。
View Record found error：
[crayon-68fe1b368bd0b35[……]
This afternoon，I'm knocking Code，Then on the west coast, a vps sent e-mail，Said server to restart Update，And I happen to have a vps is there in his。In addition to hardware and general maintenance accident，Cloud services basically online - after all，“High availability"It is the main subject of cloud services。
but，This time is different，Just today，The new virtual machine loopholes available，Exploit this vulnerability，You can make every minutesudden[……]
Possible until now，You have been very skilled how to open nat and port forwarding on Linux - after all, this operation may also require a server at the time of deployment。But its operation is too cumbersome，Especially when we use edit iptables ufw after that，But you can not directly edit the iptables，This time in the end what to do it?
want使用 ufw[……]
Update：for some reason，Ali cloud is no longer recommended updates the source，Give youThis page，Click to go can help you generate USTC mirror automatically depending on the version update source。
In order to facilitate their own domestic vps server configuration updates，Usually all you need to change and update the source dns，Do not try to patch ............ otherwise life short，NetEase previously used source but recently always cramp，So nowRecommended Ali cloud。
Another[……]
we all know，Among Linux system has a very fast hardware firewall is called iptables，It can do far exceeds the scope of the firewall, but ......，usually，We only used it as a firewall to use。
but，If you just want a port policy，That does not seem to need to face iptables That lengthy configuration commands。Now，I'll introduce you to the other a more[……]
As the once booming domestic DNS resolution service providers，dnspod In the godaddy NS has just been certified during that time to resolve domestic high speed services of good quality and recommended by the majority of Web hosting providers，Our group of mindless small bloggers will have to takeThird-party NS resolution。
Actually, I was dnspod It's nice, too，Resolved faster，Creates a new domain name，From a few minutes to start[……]
We all know that you can use nginx trans-generation capabilities to achieve cross-border access network，but，This approach has a lot of constraints，For example, it is difficult to achieve login authentication，For example, the need for a separate forwarding module compiler to do，For example, you need to have a valid signature ssl certificates, etc.。
this time，We introduce an additional artifact SNI Proxy，With dnsmasq can be achieved with sniproxy[……]
All to known，I want to get them abroad towards LAN DNS information，Will certainly suffer keywordPollution。to this end，Some people thinkUse exception port，For example, instead of using 5353 as the current DNS dedicated port 53-- Girl Friend Wall Only 53 pollution；It was also thought of using a TCP connection request，Because DNS response mechanism（参考 DHCP）I decided itaccept[……]
Usually the default Apache will allow directory indexing，This is very vulnerable to malicious use of people with ulterior motives。Many people choose to place the index.html file in the directory for this purpose，Because then it becomes open an empty file can not be indexed directory，But this, after all, a temporary solution - you can not give all of the directories to index a right?
If you can，Or should modify .[……]
If you ask most often play VPS owners recommended that service providers? I think in addition to the famous old Linode，The rest of the rookies Digital Ocean 。The rise in recent years, just vps service providers rely on the support of the United States is said to several consortia，Create a global SSD solid disc、Demand charges vps cloud services platform。
The main，still is[……]