tripwire ops

-----------------------------------------------------------Tar: archive and compress;-C: Create an archive;-X: Release the archive;-F: Specifies the name of the archive;-z,-j,-j: Call the. gz,.bz2,.xz format tool for processing;-T: Displays a list of files in the archive;-P: Keep the absolute path of the file within the archive;-C: Release the specified position;-----------------------------------------------------The representative of the colorGreen: Represents an executable program;Yellow Blac

导言：2017年无疑是Python最火的一年，为什么Python这么火，这里面功劳最大的或许就是AlphaGo了，你知道吗？AlphaGo是用Python开发的哦！从技术领先的运维工具到人工智能学习程序，你都能看到Python的身影。那么对于运维来说，不会Python就将要失业吗?我想看了作者对在Linux 系统运维中Python都有哪些应用的分析你就会知道Python对运维的重要性了。Python analysis at this stageAt this stage, mastering a development language has become an essential skill for senior OPS engineers. If you do not develop, then you do not fully understand the business process of your system, then you will not be able to help

services must be mastered, such as FTP, Dns,samba, mail, this a few probably learn about the line, lamp and LNMP is to be skilled, I mean not light will build, But to be very familiar with the inside of the quite configuration, because the company's most critical is definitely a Web server, so nginx and Apache to be familiar with, especially nginx must be very familiar with, at least some companies will use Tomcat, this is also the best to learn. In fact, the network services do not have to wor

A few days ago a friend to interview, got a Linux OPS interview, not too full, the database did not get, some did not answer, welcome the big God to add1. write a minimum of four Linux distributionsRedhat,centos, SuSE, Ubuntu, Debian, Gentoo,Slackware, Fedora,arch LinuxSuse is a two- time release based on SlackwareUbuntu is a two- time release based on DebianFedora belongs to Red Hat seriesArch Linux is lightweight, is a standalone release, no other v

Tags: different port password Fix latest image ima l command gcc A：“A办公区的网络不太好咦”B: "Today, the C area is very fast." 　　 C: "Upload so fast, how can I download so slowly?" ” 　　 The above scenario, as the Linux ops just get started, these problems should be frequently encountered. What is the way to get to know the situation quickly and easily? 　　 The above situation may be related to system resources, network status, network traffic, or it may be relat

Marco Linux OPS beginner + Intermediate + Advanced Video tutorial Video tutorials full Download (nearly 50G)Catalogue Details:18_02_ssl protocol, OpenSSL, and creating a private CA18_03_OPENSSH Service and its related applications09_01_ disk and file system management detailed three10_05_ script Programming eight scripts to complete the disk partition format20_01_dns master-slave replication and zone transfer04_04_grep and regular Expressions01_03_ Op

[APIO2010] Special Operations teamThe surface is very straightforward, will not let go.Too much of a routine, do not feel a bit.\ (DP (i) =DP (j) +a* (S (i)-S (j)) ^{2}+b* (S (i)-S (j)) +c\)Direct introduction of a slope optimization equation on the monotone queue just fineTime/Space complexity: \ (O (n) \)#include #defineSid 1000500#defineRI Register int#definell Long Long#defineDD Doubleusing namespacestd;#defineGetChar () *s + +Charrr[30000005], *s =Rr;inlineintRead () {intp =0, W =1; Charc =

Luogu 3628 The SI represents the prefix of the sequence andF (i) represents the maximum value of dividing the first I of a sequence by several segmentsf (i) = Max{f (j) +a∗ (SI−SJ) 2+b∗ (SI−SJ) +c},1≤j = Max{−2a*sj*si+f (j) +a*sj*sj−b*sj}+a*si*si+b*si+c,1≤j 1#include 2#include string>3 4typedefLong Longll;5 6 ll A, B, C;7 8 ll Read () {9ll x =0, F =1;Ten Charc =GetChar (); One while(!IsDigit (c)) { A if(c = ='-') F =-1; -c =GetChar

=='-') sign=-1; Ch=GetChar ();} - while(ch>='0'ch'9') {v=v*Ten+ch-'0'; Ch=GetChar ();} - returnv*=Sign ; - } in Const intn=1e6+Ten; -typedefLong LongLL; to /******************tamplate*********************/ + LL F[n],x[n],s[n]; - intq[n],a,b,c; the DoubleSlopintKintj) { * return Double(f[j]-f[k]+a* (S[j]*s[j]-s[k]*s[k]) +b* (s[k]-s[j])/ $ Double(2*a* (s[j]-s[k]));Panax Notoginseng } - intMain () { the #ifndef Online_judge +Freopen ("1911.in","R", stdin); AFreopen ("1911.out",

" should not be larger than the size of "old" half, because the old area if not enough to trigger the "main" GC frequently, greatly reducing the performance 9. Manually release memoryhttp://lizhenliang.blog.51cto.com/7876557/1657448Syncecho 1 >/proc/sys/vm/drop_cachesthe value of drop_caches can be a number between 0-3 and represents a different meaning:0: Not released (system default)1: Free page cache2: Release dentries and Inodes3: Release all caches Linux Verbose logging user act

maintenance of one of these points of the lower convex shell for transfer, time complexity $O (N) $I pushed the wrong!!! When I was speaking at the summer camp. Sparta!!!!!!!!! Long time to find out. The correction came after the shooting or wrong, and later found that the change is too urgent to forget to add two brackets Spartan!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!For a off this problem spent a night, all the brain and hand residue caused by the inability to spit groove _ (: З"∠) _#include (￣▽￣ ") b

Yes, a line of code a few bugs, not to restart the computer to solve the problem.Goals to achieve:1. Import formatted text.2. Click the text to copy to the pasteboard.3, finally become a quick-editing text quick paste tool.4, suitable for online customer service class work, one-to-many chat special tools.5, want to use C # implementation.Insiders look lively, the layman can not see the doorway.650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M00/8C/05/wKioL1hfkfKxtwPmAAFctLJ501c436.jpg-wh_

like I'm up to a new level. Add to my previous work experience, let my knowledge system more perfect. at this time a phone call, a company called me to interview, holding the mentality of the attempt I went. The results were ideal, and I was informed of the work. The monthly salary is already twice times more than. The confidence is bursting with wood? I and the interviewer said 1 weeks later to work, in fact, I would like to pass a week to learn more about the knowledge of the heart, so that I

The general company's IT department is mainly composed of desktop support staff, back-office operators, platform application developers, with the advent of automated operations and devops, I boldly predicted that 5 years later this concept will completely subvert IT department management methods and operation model.Please read the text belowhttp://mp.weixin.qq.com/s?__biz=MjM5NDUxNTEzMw==mid=2247483742idx=1sn= 8cc6c967058f2ba49ae640b8dabf9dce#rdPlease pay attention to number: Ithelpyou650) this.

Group: 73120574Shop Address http://product.dangdang.com/23903741.html650) this.width=650; "title=" 4-22-2.jpg "style=" Height:220px;width:168px;float:none; "alt=" Wkiom1czfxndqjpnaab6t7docfw936.jpg "src=" http://s3.51cto.com/wyfs02/M02/7F/4D/ Wkiom1czfxndqjpnaab6t7docfw936.jpg "width=" 386 "height=" 497 "/>"Unix/linux Network log analysis and Traffic monitoring" the 2nd time printingHeavyweight Unix/linux Platform log analysis and Defense Forensics tutorial, 51CTO expert Bo Main, with a value o

library file was not found, so the error was made. This is a good solution, the purpose of the first step is to generate Omnitty library files, but the compiled library files are not copied to the corresponding directory. Let's do it by hand here,# cd/usr/local/src/rote-0.2.8# CP librote.so.0.2.8/usr/lib64/# cd/usr/lib64# ln-s librote.so.0.2.8 librote.so.04. Operation effectAll right. Depending on the solution, look at the effect of the operation,650) this.width=650; "src=" Http://s3.51cto.com/

[MAXN],DP[MAXN];intQue[maxn],l,r;Long LongpfLong Longx) {returnx*x;}DoubleSlopeintIintj) { Doublefz=dp[j]-dp[i]+a* (PF (pos[j])-PF (Pos[i]) +b* (pos[i]-Pos[j]); DoubleFm= (2*a* (pos[j]-pos[i])); returnfz/FM;}intMain () {n=read (); A=read (), B=read (), c=read (); for(intI=1; i1]+Po[i]; for(intTmp,i=1; i) { while(L1]) ; TMP=Que[l]; Dp[i]=DP[TMP]+A*PF (Pos[i]-pos[tmp]) +b* (pos[i]-pos[tmp]) +C; while(L1],que[r]) >slope (que[r],i)) r--; que[++r]=i; } printf ("%lld\n", Dp[n]

Personal summary of operation and maintenance work:A core:Ensure the stable, efficient and continuous operation of the business system, while reducing the cost of operation and maintenance center (Operation and Maintenance center is the cost center, not the value center, is the consensus of how many high-level enterprises)1, around the stable, efficient, continuous 3 key words, operations and maintenance team has a lot of work to do:Stability:(1) IT Infrastructure operations: network, the daily

commands and precautions1.3.1OPS Command number of dbsize keys Flushall clears all Keys in the current server-managed database flushdb clears all Keys in the current database SAVE RDB Persistence mode SHUTDOWN stop server side slaveof Host Port manual configuration is currently from the server Monitor opens the console client kill shuts down one of the clients sync Synchronize manually bgrewriteaof background Write aof Bgsave background Write Rdb shutdown save|nosave shutdown Server --- save /

resource planning: Understanding operational application scenarios; Load analysis; software resource planning; hardware resource planning Software service layer, mainly including operating system, and configuration of all software Compute resource Tiers, primarily for CPU , Memory, X86 infrastructure, such as hardware resources, with funding decisions Storage resource tiers, which are primarily managed for storage resources. manage the mail system, open source software Spa