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Linux dual-line server configuration

/rt_tables: Add two route tables: China Netcom and China tietong 252 cnc 251 crtc Set the route table of China Netcom Ip route add 210.82.37.128/27 via 210.82.37.149 dev eth0 table cnc Ip route add 127.0.0.0/8 dev lo table cnc Ip route add default via 210.82.37.158 dev eth0 table cnc Set tietong route table Ip route ad

UbuntuServer10.10 server: China Telecom, China Unicom dual-line access, and Intranet three-line access

The server environment is as follows: IBM server, a total of 4 NICs; Operating System: Ubuntu-10.10-server access Intranet, telecommunications and Unicom IP, the information is as follows: 168.168.168.96 Telecommunications (TEL) IP: 125.91.219.252; subnet Mask: 255.255.255.248; Gateway: 125.91.219.249 Unicom (CNC) IP: 120.81.225 The server environment is as follows: IBM server, with a total of 4 NICs; Operating System: Ubuntu-10.10-server The IP addre

[Post] The architecture automatically resolves DNS servers with different IP addresses based on Telecom and Netcom users

main drama in the article. Add the following content to the end of named. conf.// Add cnc acl by naizhaoACL "CNC "{58.16.0.0/16;58.17.0.0/17;58.17.128.0/17;58.18.0.0/16;58.19.0.0/16;58.255.0.0/16;58.21.0.0/16;58.22.0.0/15;58.240.0.0/15;58.242.0.0/15;58.244.0.0/15;58.246.0.0/15;58.248.0.0/13;60.0.0.0/13;60.8.0.0/15;60.10.0.0/16;60.11.0.0/16;60.12.0.0/16;60.13.0.0/18;60.13.128.0/17;60.14.0.0/15;60.16.0.0/13;

My college life.

, software talent structural contradictions are increasingly prominent, talent structure is two small, middle large olive type, not only lack of high-level system analyst, Project Master Designer, There is also a shortage of people engaged in basic development. According to the reasonable proportion of talent structure to calculate, by 2005, China needs software senior talent 60,000 people, intermediate talent 280,000 people, junior talent 460,000 people, coupled with enterprises, communities, i

My college life.

expanding, software talent structural contradictions are increasingly prominent, talent structure is two small, middle large olive type, not only lack of high-level system analyst, Project Master Designer, There is also a shortage of people engaged in basic development. According to the reasonable proportion of talent structure to calculate, by 2005, China needs software senior talent 60,000 people, intermediate talent 280,000 people, junior talent 460,000 people, coupled with enterprises, comm

How to configure dual-IP gateway for dual-line dual-Nic in linux

only know that China Unicom and China Telecom lead to different VLANs, and China Telecom and China Unicom cannot pass through, however, other machines with the same intervention method can work normally out of the Internet, so as to eliminate network problems, in addition, the network can be accessed normally when the machine is 2003, and the NIC problem is also ruled out. This is the only problem with the operating system. After asking for help from google and other masters, we finally got it

Smart DNS installation and configuration

"; Version "0.0.0 "; Datasize 40 M; Allow-transfer { "Trust-lan ";}; Recursion yes; Allow-policy { "Trust-lan "; }; Allow-recursion { "Trust-lan "; }; Auth-nxdomain no; Forwarders { 202.99.160.68; 202.99.168.8 ;}; }; Logging { Channel warning {File "/var/log/named/dns_warnings" versions 3 size 1240 k; Severity warning; Print-category yes; Print-severity yes; Print-time yes; }; Channel general_dns {File "/var/log/named/dns_logs" versions 3 size 1240 k; Severity info;

Lazyload Picture Lazy Loading

"-//W3C//DTD XHTML 1.0 transitional//en" "HTTP://WWW.W3.ORG/TR/XHTML1/DTD/XHTML1-TRANSITIONAL.DTD">"http://www.w3.org/1999/xhtml">"Content-type"Content="text/html; Charset=utf-8"/> class="Load"Src="Http://static.m1905.cn/images/vip/cnc/lazyImg.gif"Data-lazysrc="http://image11.m1905.cn/uploadfile/2015/0210/thumb_1_162_241_20150210040409914251.jpg"/>class="Load"Src="Http://static.m1905.cn/images/vip/cnc/lazy

Design and Manufacturing Process Analysis of iPhone 4 to iPhone 6, iPhone 4iphone6

Design and Manufacturing Process Analysis of iPhone 4 to iPhone 6, iPhone 4iphone6 Here I will explain some of my views on the design and manufacturing processes of these mobile phones. These five models have three appearances: Sandwich Design for iPhone 4. Three-Stage aluminum alloy Integrated forming of iPhone 5. All-metal Integrated Molding Design for iPhone 6. Looking back, the design of these three generations of mobile phones almost leads the world's mobile phone design trend. Whether it i

Development trend of industrial computer

The development of IPC and its application is closely related to the development of informatization, digitalization, intelligent world trend and computer technology, control technology, network technology, display technology (especially Fieldbus and control network). 2000 the World Industrial control computer market for $30.04 trillion, of which DCS60 billion, embedded system $607 billion, FCS20-30 billion, IPC70-80 billion, PLC70-80 billion, CNC $708

Note the asc/desc of each field using the BTREE composite Index to optimize the efficiency of the ORDER by query

, T.rev_flag, T.trans_amt, concat (substr (t.sys_date, 1, 4), t.trans_datetime) transtime,t.before_trans_ CodeT.acct_num, T.retrivl_ref_num, T.resp_code, T.resp_auth_code, R.recv_ins_name,t.acq_ins_code,t.trace_num,t.trans_ DatetimeCase substr (t.sa_sav2,259,1) While 1 then ' debit card ' when 2 Then ' credit card 'When 3 Then ' quasi credit card ' when 4 Then ' private prepaid card ' Else ' end cardtype,CaseWhen locate (' VIS ', t.sa_sav2) > 0 Then ' VISA 'When locate (' JCB ', t.sa_sav2) > 0 T

How to configure dual-IP gateway for dual-line dual-nic in Linux

Telecom address. Otherwise, you can only ping the China Unicom address. If both China Unicom and China Telecom addresses are configured, the two cannot be connected. Because it is not our company's network, we are not clear about the Upper-layer implementation method. We only know that China Unicom and China Telecom lead to different VLANs, and China Telecom and China Unicom cannot pass through, however, other machines with the same intervention method can work normally out of the internet, so

DNS servers with different IP addresses are automatically resolved by China Telecom and China Netcom

"1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa "{Type master;File localhost-v6.rev ";}; // RFC 1886-deprecatedZone "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.int "{Type master;File localhost-v6.rev ";};Use/**/to annotate all the above content/*Zone "." {Type hint;......File localhost-v6.rev ";};*/At the end of the named. conf file, add the content in rndc. conf.Key "rndc-key "{Algorithm hmac-md5;Secret "ILzfx8ONk2444ix9jnDfKA = ";

Rookie learn four-axis Controller 1: What is interpolation?

, because:1, the theory of numerical control and the theory of multi-axis controller, basically is heard.2, I graduate of electronic information, graduated for many years has been to do is stepping drive this piece of hardware design.Based on the stepper drive has not much profit, as well as the company's development needs, I intend to start from the rookie, learning the theory of the controller, I hope that they can win a year or so, design a complete, for four-axis control engraving machine co

Set up the entire process website of a large web site server

) Domain name resolution The following are the referenced contents: #vi/etc/named.confThe contents of the file begin/////////////////////named.conf for Red Hat caching-nameserver// Options {Directory "/var/named";Dump-file "/var/named/data/cache_dump.db";Statistics-file "/var/named/data/named_stats.txt";/** If There is a firewall between for you and nameservers for you want* To talk to, your might need to uncomment the Query-source* directive below. Previous versions of BIND always a

Note: Use the BTREE compound to index the ASC/DESC of each field to optimize the orderby query efficiency.

= 1435736728; Select substr (t. acq_ins_code, 3) merAcqInsCode, t. mer_code, t. term_id, substr (t. mer_addr_name, 1, 12) merName, Tt. trans_desc, t. rev_flag, t. trans_amt, concat (substr (t. sys_date, 1, 4), t. trans_datetime) transTime, t. before_trans_code, T. acct_num, t. retrivl_ref_num, t. resp_code, t. resp_auth_code, r. recv_ins_name, t. acq_ins_code, t. trace_num, t. trans_datetime, Case substr (t. sa_sav2, 1) when 1 then 'debit card 'when 2 then' When 3 then 'quasi-loan quota' when 4

Paper notes: Hybrid Computing using a neural network with dynamic external memory

Hybrid computing using a neural network with dynamic external memoryNature 2016Original link:http://www.nature.com/nature/journal/vaop/ncurrent/pdf/nature20101.pdf  absrtact : AI Neural Networks have been very successful in perceptual processing, sequence learning, reinforcement learning, but limited to their ability to represent variables and data structures, and the ability to store knowledge for long periods of time because of the lack of an additional memory unit. Here, we introduce a machin

Note the asc/desc of each field using the BTREE composite Index to optimize the efficiency of the ORDER by query

, T.trans_amt, concat (substr (t.sys_date, 1, 4), t.trans_datetime) transtime,t.before_trans_ CodeT.acct_num, T.retrivl_ref_num, T.resp_code, T.resp_auth_code, R.recv_ins_name,t.acq_ins_code,t.trace_num,t.trans_ DatetimeCase substr (t.sa_sav2,259,1) While 1 then ' debit card ' when 2 Then ' credit card 'When 3 Then ' quasi credit card ' when 4 Then ' private prepaid card ' Else ' end cardtype,CaseWhen locate (' VIS ', t.sa_sav2) > 0 Then ' VISA 'When locate (' JCB ', t.sa_sav2) > 0 Then ' JCB 'W

Note: Use BTREE to comindex ASC/DESC of each field to optimize order by query efficiency. btreeasc

; Select substr (t. acq_ins_code, 3) merAcqInsCode, t. mer_code, t. term_id, substr (t. mer_addr_name, 1, 12) merName, Tt. trans_desc, t. rev_flag, t. trans_amt, concat (substr (t. sys_date, 1, 4), t. trans_datetime) transTime, t. before_trans_code, T. acct_num, t. retrivl_ref_num, t. resp_code, t. resp_auth_code, r. recv_ins_name, t. acq_ins_code, t. trace_num, t. trans_datetime, Case substr (t. sa_sav2, 1) when 1 then 'debit card 'when 2 then' When 3 then 'quasi-loan quota' when 4 then' privat

How to obtain the quality original content of enterprise website

from article B, article C, and then rub and compose a new article, but make sure the article is readable 。 For example, if you want to write an article about CNC punching machine, then you can find several similar articles from the Internet. Then from a article to pick CNC punch production and development history, from the B article to pick the composition and components of

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