micrologix 5000

different, they are behind Nat; otherwise, they are behind Nat. To detect different types of NAT, the STUN Protocol defines message attributes and requires the server to have different actions, such as using different IP addresses and ports when sending responses, or changing ports. The STUN Protocol may be effective for Nat, but it is powerless for the firewall, because the firewall may not open the UDP port. Nat category Stun roughly divides NAT into four types: Full cone, restricted cone, po

specifies the domain -- Help: displays help. -- Version: displays the version information. Keys [root @ Jesse ~] # Cat c.txt 7 July 8 August 9 September 10 October 11 November 12 December 1 January 2 February 3 March 4 L 5 May 6 June [Root @ Jesse ~] # Sort-c c.txt Sort: c.txt: 4: disorder: 10 October // it indicates that the data is not arranged in a certain order. if nothing is displayed, it indicates that the data is classified in a certain

Mysql transactions, concurrency issues, lock mechanisms, mysql transactions1. What is a transaction? A transaction is a combination of one or more database operation statements. It has four features: ACID. Atomicity Isolation: transactions are independent of each other and do not interfere with each other. Consistency: After the database changes its status correctly, the consistency constraints of the database are not damaged. Persistence: the transaction commit result, which is permanently stor

When the Docker Registry V2 comes out, it's really good to be simple and practical, but when you change port 5000 to something else, or use a domain name binding, it's a mistake. Here is a detailed record of the process of your own experience.First, the installation of Docker Registry V2 (distribution).Here I chose to use the official provided image to install, perhaps you will feel that it is easy, dismissive. However, for an OPS person, the attentio

different regions, there must be a solution to achieve interconnection between the two, so the atm lane technology came into being. By using LANE, the ATM network can simulate the work of the LAN, so that multiple LAN can be connected to the ATM network without any modification. ATM is responsible for bridging, which is completely transparent and seamless for users. It seems to work in a pure Ethernet environment, as shown in figure 2. The configuration process of LANE is complicated, and the

ENAME JOB MGR HIREDATE SAL COMM ------------------------------------------------------------------------- DEPTNO ---------- 7369 smith clerk 7902-12-80 800 20 7499 allen salesman 7698 20-2 months-81 1600 300 30 7521 ward salesman 7698 22-2 month-81 1250 500 30 EMPNO ENAME JOB MGR HIREDATE SAL COMM ------------------------------------------------------------------------- DEPTNO ---------- 7566 jones manager 7839 2975-81 20 7654 martin salesman 7698 28-9 month-81 1250 1400 30 7698 blake ma

layer configuration and defense, but it also simplifies load balancing and SSL settings. And more importantly, the reverse proxy server can be well integrated with the existing infrastructure.3. Hello NginxWe also try to play the Nginx based on Docker.//拉取Nginx镜像$ docker pull nginx//启动Nginx容器$ docker run -d -p 8080:80 --name hellonginx nginxAbove we started in the background running a nginx container named Hellonginx, whose port is mapped to the host's 8080 port, we can now be directly accessed

The creation of a Python dictionaryMethod One: >>> blank_dict = {} >>> product_dict = {' MAC ': 8000, ' Iphone ': 5000, ' ipad ': 4000, ' MP3 ': >>> product_dict {' ipad ': 4000, ' MAC ': 8000, ' Iphone ': 5000, ' mp3 ': >>> blank_dict, Product_dict ({}, {' ipad ': 4000, ' MAC ': 8000, ' Iphone ': 5000, ' MP3 ': 300}) Method Two:Starting with the Python 2.2 ve

seconds ago up 2 seconds 0.0.0.0:49155- >5000/tcp Nostalgic_morseYou can also display the host port with the specified container port bindings, using the-P tag. $ sudo docker run-d-p 5000:5000 training/webapp python app.pyWe see that this is not a good idea because it binds us only to a container that can be specified on this particular port. There are som

1. What is a transactionA transaction is a combination of one or more database operation statements with acid,4 characteristics.Atomicity: Either all succeeds or all is undoneIsolation: Transactions are independent from one another and are not interfering with each otherConsistency: The database consistency constraint is not compromised after the database has changed state correctlyPersistence: The commit result of the transaction, which persists in the database2. What will happen to the concurr

MySQL transaction concurrency problem, lock mechanism1. What is a transactionA transaction is a combination of one or more database operation statements with acid,4 characteristics.Atomicity: Either all succeeds or all is undoneIsolation: Transactions are independent from one another and are not interfering with each otherConsistency: The database consistency constraint is not compromised after the database has changed state correctlyPersistence: The commit result of the transaction, which persi

1. What is a transactionA transaction is a combination of one or more database operation statements with acid,4 characteristics.Atomicity: Either all succeeds or all is undoneIsolation: Transactions are independent from one another and are not interfering with each otherConsistency: The database consistency constraint is not compromised after the database has changed state correctlyPersistence: The commit result of the transaction, which persists in the database2. What will happen to the concurr

= true Fork = true Pidfilepath =/home/data/shard1_1.pid MaxConns = 20000 OplogSize = 5000 Noprealloc = true Nohttpinterface = true Part 2 [Root @ mongodb40 config] # catshard2_1.conf Port = 11732 Dbpath =/home/data/shard2_1 Logpath =/home/data/logs/shard2_1.log Directoryperdb = true Logappend = true ReplSet = shard2 # Bind_ip = 172.16.0.40 Shardsvr = true Fork = true Pidfilepath =/home/data/shard2_1.pid MaxConns = 20000 OplogSize =

Build a private Docker database on Centos7 Master: 192.168.1.14Linux environmentUname-Linux master.localhost.com 3.10.0-514.10.2.el7.x86 _ 64 #1 SMP Fri Mar 3 00:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux 1. Install dockerYum install libdevmapper *-yYum install docker-y 2. Start docker Systemctl start docker. serviceSystemctc enable docker 3. Set the docker image source accelerator Curl-sSLhttps: // get. daocloud. io/daotools/set_0000.sh | sh-shttp: // ef017c13. m. daocloud. ioNote: The/etc/d

container, and after this command is executed, Docker takes the following actions in sequence: A. Check if the Hello-world image is installedB. If not installed, download the image from the Docker Remote warehouse (Docker Hub)C. Load the image into the container and run it. Create Doker PHP container, enable PHP development environment The Docker hub has an image of the individual developer, as well as an official image of the company or organization, you can use the image of the Docker hub, or