best linux os

The night before attending the linuxcon 2011 conference in Yokohama, Japan,Linus torvalsdJust nowGitMarkedWindows 3.0-RC1, AndKlmlSubmitted relevant announcementsThis also marks that the Linux operating system will eventually leave the 2.6 series kernel, opening a new era of 3.0. In fact, just a week ago, Linus was still considering whether to end the Linux 2.6 series kernel. After all, it had already gone

Linux: 1 Single Kernel Mode Linux is a single kernel mode, and externalProgramIn different memory address spaces, the program can only be accessed through the: System Call interface. In Linux, the single kernel mode is dynamic. 2. No user thread Create a new thread by using clone. 3 Non-preemptive: 4 Process: 4.1 process no.: PID

Article Title: several methods for backing up the Linux operating system. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Several backup methods are introduced here: 　　Tar: Features 1. Retain Permissions 2. Suitable for backin

execution Rpm-q redhat-release, for example as follows:[Email protected]_sys ~]# rpm-q redhat-releaseredhat-release-5server-5.6.0.3[[Email Protected]_sys ~]#Note: A so-called release number can be seen in this way, such as the above example is 5There is a certain correspondence between the release number and the actual version, as follows:Redhat-release-3as-1-Redhat Enterprise Linux as 3redhat-release-3as-7.4-Redhat Enterprise

_completemarks () { -Local curw=${comp_words[comp_cword]} toLocal wordlist=$ (Find$MARKPATH-type l-printf"%f\n") +Compreply= ($ (compgen-w'${wordlist[@]}'--"$CURW")) -Return0 the } *Complete-f _completemarks Jump UnmarkOS XEdit. Bash_profile (or. Profile)Add the following content:1Export Markpath= $HOME/. Marks2 3 #mark in the directory where you want mark: Mark alias4 functionMark {5 mkdir-P"$MARKPATH";LN-S"$ (PWD)" "$MARKPATH/$1"6 }7 8 #jump Skip to Mark's directory in any directory: Jump

Loading GRE ModulesModprobe Ip_greCreate a tunnel named officeIP tunnel addoffice mode GRE remote 111.206.164.122 local 111.206.0.88 TTL 255IP Link Set officeupAdd an IP address for tunnelIP Add add10.100.100.1/30 Dev OfficeCreate a routing table with a table name of 136IP route add default via 103.246.132.61 table 136To create a policy that specifies the route table 136 when the local source IP is 192.168.50.0/24 out-of-the-wayIP rule Add from192.168.50.0/24 Dev office table 136Add static route

start Firewalld.serviceStop: Systemctl Stop Firewalld.serviceDisable self-booting: Systemctl Disable Firewalld.serviceView current detailed status: Systemctl status Firewalld.serviceDisplay Status: Firewall-cmd--stateOpen port: Firewall-cmd--zone=public--add-port=80/tcp--permanent(--permanent parameter means permanent, otherwise it will expire after reboot)Delete port: Firewall-cmd--zone=public--remove-port=23/tcp--permanentReload: Firewall-cmd--reloadShow open Services and ports: Firewall-cmd-

/' /etc/ssh/sshd_config #alter ssh defaultport16182sed-i ' S/^permitrootloginyes/permitrootloginno /' /etc/ssh/sshd_configsed-i ' s/^# permitemptypasswordsno/permitemptypasswordsno/' /etc/ssh/sshd_config sed-i ' s/^ #MaxAuthTries 6/maxauthtries3/' /etc/ssh/sshd_ configsed-i ' $aAllowUsers zkyw ' /etc/ssh/ sshd_config #allow commonuserzkywsshlogin /etc/init.d/sshdreload}## #clock Synchronouswithinternet time## #function ntpclock () {/usr/sbin/ntpdate 202.120.2.101echo "3022***/ usr/sbin/ntpdate20

. Using the Grub-install command# Grub-install [--root-directory=dir] DEVICEThe path specified by--root-directory= must be the parent directory of the mount point of the partition where the kernel and INITRD files reside, and this mount point must be called the bootFor example: The/DEV/SDB1 partition on the/DEV/SDB contains kernel and initrd files, and grub is now required on the SDB.[[Email protected] ~] #mount/dev/sdb1/mnt/boot[[email protected] ~] #grub-install--root-directory=/mnt/dev/sdbThi

succeed." #5. config profile.Cp/etc/profile/etc/profile.bakEcho ' if [$USER = ' Oracle ']; Then ' >>/etc/profileEcho ' if [$SHELL = '/bin/ksh ']; Then ' >>/etc/profileEcho ' ulimit-p 16384 ' >>/etc/profileEcho ' ulimit-n 65536 ' >>/etc/profileEcho ' Else ' >>/etc/profileEcho ' ulimit-u 16384-n 65536 ' >>/etc/profileEcho ' fi ' >>/etc/profileEcho ' fi ' >>/etc/profileecho "Modifing The/etc/profile has been succeed." #6. config Sysctl.ctlCp/etc/sysctl.conf/etc/sysctl.conf.bakecho "FS.AIO-MAX-NR =

One, download files from the server to the native1, modify the file belongs toBecause you can only download files that belong to your own file, you should make changes to the action that the file belongs to.Chown Hudelei/opt/logs/tomcat/app/tomcat_stk_nm/stk-time.log2. Download to this machineSCP [Email Protected]:/opt/logs/tomcat/app/tomcat_stk_nm/stk-time.log/users/hvvi/desktop3. Enter the passwordSecond, upload folder to the server1, scp-r/users/hddvvi/desktop/load [email protected]:/opt/logs

Article title: modify the IP address of a Linux operating system. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Linux ip address modification code Modify/etc/sysconfig/network-s

Article Title: Practical Tips: use Linux background tasks. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Linux, as a multi-task environment, allows users to execute multiple tasks

Overview The guidance and initialization of the system is the first step of the operating system control, and it is also an important part to embody the system. Linux, as a free quasi-Unix operating system, has performed well in many amateur and small business-processing markets, becoming another mainstream after the Windows series. Understanding the initialization of Linux systems is very helpful for furt

From DOS to Windows, intellectual game bubbles have always been a classic in PC games. The Bubble Dragon frozen Bubble in Linux (exactly the bubble penguin) gives you a choice to relive your dreams. Frozen Bubble Game Download, the installation file name is Frozen-bubble.tar, size 8MB. Step1. Decompression Unpacking [root@localhost Root] #tar xvf Frozen-bubble.tar.tarfrozen/frozen/sdl_mixer-1.2.4-5.i386.rpmfrozen/sdl_net-1.2.4-3.i386.rpmfrozen/sdl_

Initially programmed with Liunx, the platform for Learning programming was recently transferred to a Mac. In the meantime there are some problems, especially the line break. When you use an input/output function such as scanf, the expected line-wrapping effect does not occur when you are swapping lines.Originally, on the three main platforms, the line break's representation is not the same.In Unix systems, the end of each line is only "Inside the Windows system, each line ends with "Mac system,

/scgi_temp--user=nginx--group=nginx--with-http_realip_module--with-http_addition_module--with-http _sub_module--with-http_dav_module--with-http_flv_module--with-http_mp4_module--with-http_gunzip_module-- With-http_gzip_static_module--with-http_random_index_module--with-http_secure_link_module--with-http_stub_ Status_module--with-http_auth_request_module--with-mail--with-file-aio--with-ipv6--with-http_spdy_module-- with-cc-opt='-o2-g-pipe-wp,-d_fortify_source=2-fexceptions-fstack-protector--param

increased, indicating that the minimum available memory is always 256 MB (physical memory size) * 10% = 2.56 MB, when the number of dirty pages reaches 10%, a large number of swap is used. Free $ free-mtotal used free shared buffers cachedMem: 8111 7185 926 0 243 6299-/+ buffers/cache: 643 7468 Swap:8189 0 8189 III. Disk IO good status indicators Iowait % An easy way to increase the hit rate is to increase the File Cache area. The larger the cache area, the more pages are pre-stored, and the hi

This article describes several common Linux monitoring scripts that can automatically monitor and alert the traffic, system status, disk space, CPU and memory usage of the host Nic. The shell scripts written based on your needs can better meet your needs and refine the comprehensiveness of host monitoring. Recently, a friend from the Internet asked me questions about server monitoring. I asked if common server monitoring software, such as cacti and n

Tags: low memory Data cached Origin htm EMS share OTA uploadDescription[[Email protected]~]# free -m total used free shared buffers Cached Mem: 995 785 209 06 92- /+ buffers/cache: 686308swap: 478 200278 Available memory: Available memory=free+buffers+cached, i.e. 308=209+6+92Memory used: Used memory=used-buffers-cached, 686=785-6-92When using Zabbix's own template OS Linux template to moni