avahi

++* libgomp* libgcc* libaio* kernel-headers* glibc* gcc* elfu tils* binutils* bind bind-devel bind-chroot caching-nameserver compat-libcap1* compat-libstdc++-33* openssh* xdpyinfo VI UnzipClose the Avahi-daemon process[Email protected] ~]# Chkconfig Avahi-daemon offNote: The request is being forwarded to "Systemctl disable Avahi-daemon.service".Removed Symlink/et

/5Verifying:libaio-devel-0.3.109-13.el7.x86_64 1/5Verifying:compat-libcap1-1.10-7.el7.x86_64 2/5Verifying:compat-libstdc++-33-3.2.3-72.el7.x86_64 3/5Verifying:oracle-database-server-12cr2-preinstall-1.0-3.el7.x86_64 4/5Verifying:ksh-20120801-137.0.1.el7.x86_64 5/5Installed:Oracle-database-server-12cr2-preinstall.x86_64 0:1.0-3.EL7Dependency installed:compat-libcap1.x86_64 0:1.10-7.el7 compat-libstdc++-33.x86_64 0:3.2.3-72.el7 ksh.x86_64 0:20120801-137.0.1.el7 Libaio-devel.x86_64 0:0.3.109-13.EL7

FD type device size/off node namecupsd 3062 root 4u IPv4 8720 0t0 TCP localhost. localdomain: IPP (Listen) cupsd 3062 root 6u IPv4 8723 0t0 udp *: IPP Portmap 3600 RPC 3u IPv4 9798 0t0 udp *: SunRPC Portmap 3600 RPC 4u IPv4 9799 0t0 tcp *: sunRPC (Listen) RPC. STATD 3636 rpcuser 3u IPv4 9992 0t0 udp *: dhcp-failover2 RPC. STATD 3636 rpcuser 6u IPv4 9978 0t0 udp *: 844 RPC. STATD 3636 rpcuser 7u IPv4 10005 0t0 tcp *: 850 (Listen) hpiod 3890 root 0u IPv4 12249 0t0 TCP localhost. localdomain: 2208

Joba, Job B, and so on. In Sysvinit, each startup project is owned by a separate script, which is called sequentially and serially by Sysvinit. So the total start time is t1+t2+t3+t4+t5+t6+t7. Some of these tasks have dependencies, such as A,b,c,d.and Job E and F are not related to a,b,c,d. In this case, upstart can run the task {e,f, (a,b,c,d)} concurrently, reducing the total startup time to T1+T2+T3.This undoubtedly increases the parallelism of the system startup, thus improving the system b

/nologinDaemon: x: 2: 2: daemon:/sbin/nologinAdm: x: 3: 4: adm:/var/adm:/sbin/nologinLp: x: 4: 7: lp:/var/spool/lpd:/sbin/nologinSync: x: 5: 0: sync:/sbin:/bin/syncShutdown: x: 6: 0: shutdown:/sbin/shutdownHalt: x: 7: 0: halt:/sbin/haltMail: x: 8: 12: mail:/var/spool/mail:/sbin/nologinUucp: x: 10: 14: uucp:/var/spool/uucp:/sbin/nologinOperator: x: 11: 0: operator:/root:/sbin/nologinGames: x: 12: 100: games:/usr/games:/sbin/nologinGopher: x: 13: 30: gopher:/var/gopher:/sbin/nologinFtp: x: 14: 50:

disk) Name: the exact name of the opened file. PID: 1520 FD: 1. You can directly go to/proc/1520/FD/1 and use ls to check it. Lrwx ------ 1 Root 64 01-16 0-> socket: [6561] L-WX ------ 1 Root 64 01-16 08:32 2->/var/log/messages (Deleted) L-WX ------ 1 Root 64 01-16 08:32 3->/var/log/secure L-WX ------ 1 Root 64 01-16 08:32 4->/var/log/maillog L-WX ------ 1 Root 64 01-16 08:32 5->/var/log/cron L-WX ------ 1 Root 64 01-16 08:32 6->/var/log/Spooler L-WX ------ 1 Root 64 01-16 08:32 7->/var/log/boo

:0:99999:7::: Sync:*:14495:0:99999:7::: Shutdown:*:14495:0:99999:7::: Halt:*:14495:0:99999:7::: Mail:*:14495:0:99999:7::: Uucp:*:14495:0:99999:7::: Operator:*:14495:0:99999:7::: Games:*:14495:0:99999:7::: Gopher:*:14495:0:99999:7::: Ftp:*:14495:0:99999:7::: Nobody:*:14495:0:99999:7::: vcsa:!! : 14557:::::: avahi-autoipd:!! : 14557:::::: Ntp:!! : 14557:::::: dbus:!! : 14557:::::: rtkit:!! : 14557:::::: ns

" options:tm to the last Installing Avahi-daemon and Libnss-mdnsAdd the Avahi tool to allow Mac computers to discover disks in a Shared Finder toolbar Apt-get Install Avahi-daemon Libnss-mdns Configure the nsswitch.conf file to add MDNs after the original hosts row Hosts:files mdns4_minimal [Notfound=return] DNS mdns4 MDNs Let

/nologingames:x:12:100:games:/usr/games:/sbin/nologingopher:x:13:30:gopher:/var/gopher:/sbin/nologinftp:x:14:50:FTP User:/var/ftp:/sbin/nologinnobody:x:99:99:Nobody:/:/sbin/nologinnscd:x:28:28:NSCD Daemon:/:/sbin/nologinvcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologinpcap:x:77:77::/var/arpwatch:/sbin/nologinntp:x:38:38::/etc/ntp:/sbin/nologindbus:x:81:81:System message bus:/:/sbin/nologinavahi:x:70:70:Avahi daemon:/:/sbin/nologinrpc:x:32:3

to contain the line. If you do not want a wildcard, it must be completely consistent. [Root @ hadoop-bigdata01 test] # grep "1"/etc/passwd Bin: x: 1: 1: bin:/sbin/nologin Mail: x: 8: 12: mail:/var/spool/mail:/sbin/nologin Uucp: x: 10: 14: uucp:/var/spool/uucp:/sbin/nologin Operator: x: 11: 0: operator:/root:/sbin/nologin Games: x: 12: 100: games:/usr/games:/sbin/nologin Gopher: x: 13: 30: gopher:/var/gopher:/sbin/nologin Ftp: x: 14: 50: FTP User:/var/ftp:/sbin/nologin Messages: x: 81: 81: Syste

/AppleVolumes. default: #~ /"Home Directory"/Backup/TimeMachine "TimeMachine" options: tm It is best to comment out the first line because it will use the Home directory of each user as the AFP directory, which will disturb the files in our Home directory. The key point is "options: tm". This option is actually used to make netatalk act as a Time Machine server. 3. install and configure Avahi Avahi is an

Service Discovery Service has an open-source AVAHI library in linux. The other two services must be implemented based on the Airplay protocol. 1 Airplay concept Diagram Airplay client: iPhone, iPad, iPod, and other IOS devices Airplay server: iTV, Macbook, AndriodTVBox Network: Wifi Wireless LAN Airplay Server protocols: DNS Service Discovery Protocol, HTTP protocol, TCP/UDP protocol, and Airplay Protocol Services included in the Airplay server: DNS

:::Shutdown:*:14495:0:99999:7:::Halt:*:14495:0:99999:7:::Mail:*:14495:0:99999:7:::Uucp:*:14495:0:99999:7:::Operator:*:14495:0:99999:7:::Games:*:14495:0:99999:7:::Gopher:*:14495:0:99999:7:::Ftp:*:14495:0:99999:7:::Nobody:*:14495:0:99999:7:::vcsa:!! : 14557::::::avahi-autoipd:!! : 14557::::::Ntp:!! : 14557::::::dbus:!! : 14557::::::rtkit:!! : 14557::::::nscd:!! : 14557::::::tcpdump:!! : 14557::::::avahi:!! :

listening for ssh that is only connected once in a few months. Clause 2 means that the startup process should not be executed serially like sysvinit to maximize the efficiency of CPU and IO bandwidth. Dynamic Changes in software and hardware Modern Operating systems should have a high degree of dynamic characteristics: different programs start and stop, different hardware is added and removed, so services need to be dynamically started when needed. Most of the current systems continue to synchr