Puppet growth diary 3 Service resource details and case analysis
I. System Environment
1. puppet Server Release: RHEL6.4HOSTNAME: puppetserver. rsyslog. orgtcp/ip: 172.16.200.100/24 Packages:
Today, I want to analyze and discuss a problem about crawling web pages. Some Websites collect web page information from other websites for their own use, A large number of crawling behaviors may affect the web server's performance. The main
When debugging the U8 client today, the database connection fails. The following figure shows the problem:
650) this. width = 650; "title =" image002.jpg "src =" http://www.bkjia.com/uploads/allimg/131227/1623022227-0.jpg "alt ="
Something I wrote some time ago, either having too much content at once or having dozens of images in an experiment, is really not suitable for watching after meals. I have to spend some time to drum up, so I decided to do some simple experiments
R1-----R2-----R3
R2 is required to be able to telnet to R1, R3, and to switch quickly
R2: Add telnet to R1 first, then press the key firstCtrl + Shift + 6, And then pressXReturn to the R2 console. If you press ENTER twice in a row, you can telnet
Access Control List ACL
Standard access list
Router (config) # access-list 1 permit 192.168.1.0 0.0.255
Router (config-if) # ip access-group 1 in/out apply the ACL to the interface
Extended access list
Router (config) # access-list 100 permit tcp 19
I. Introduction
The emergence of NAT is due to the depletion of global IP addresses.
Ii. Type
1. Intranet access
① Dynamic NAT
② Port multiplexing NAT
2. Intranet server ing
① One-to-one ing
② Port ing
3. TCP load balancing for Intranet
1) OSPF Neighbor Relationship interruption
It does not trigger Goodbye message, bgp notification message
In OSPF, neighbors cannot explicitly interrupt the neighbor relationship through a message. Inactivity Timer is used to prevent the generation
I wrote in front that Tian Jie suddenly asked "What are the five anti-ring mechanisms of RIP ?"As it was suddenly attacked, I was quite impressed. First, paste the answer: "1. horizontal segmentation; 2. Maximum 16 hops; 3. Route poisoning; 4.
The tangle between me and "speed limit" II) ------ the accumulation process of network management experience is recorded 2) the tangle of five IP addresses makes the entire company have no peace of mind for half a month. I have also proposed two
Cisco Security Device Manager (SDM) is a very special part. We can set many functional parameters for the router device through the graphical interface.
Here I will describe how to install and display the SDM Management Interface in detail. The vro
Kelai packet capture verification OSPF selection DR ProcessWe all know that OSPF is required to select DR and BDR in the broadcast network, and that a new Router will not snatch DR, even if it has a higher priority and a higher interface IP
Enterprise Project Requirement Description:A company rents two floors of an office building and needs to create a new enterprise LAN. The company has five departments, the Engineering Department and the Technical Support Department are at Layer 4,
In the first phase, we helped a radio/TV network build a new man project and used Huawei's S9306 switch. As it was built in the early stage, only one S9306 was used as the aggregation, and the OLT ONU was suspended for testing. Such as BRAS, SR
Case 1
Time:
People started to install Exchange2007 on Windows 2008.
Accident description:
Outlook Anywhere cannot be configured successfully
Accident scenarios:
1. The CAS and MBX roles of Exchange2007 are installed on the same machine.
2. The
Note: In this blog post, "GNS3 tool: BES (to reduce CPU usage)" is downloaded from the attachment.For details about how to configure ASA in GNS3, refer to detailed tutorial on simulating ASA in GNS31,See, ifCPUUse100%What else can we do? :)There are
1. Problems in the Early Stage: a large number of users use wireless networks, and a large range of wireless APs are down. The wireless network latency is too high and frequent disconnection occurs. 1.1 Cause Analysis in the early stage of the new
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