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4. 超级守候进程inetd的配置 在linux系统中有一个超级守候进程inetd,inetd监听由文件/etc/services指定的服务的端口,inetd根据网络连接哀求,调用相应的服务进程来相应哀求.在这里有两个文件十分重要,/etc/inetd.conf和/etc/services,文件/etc/services定义linu系统中所有服务的名称,协议类型,服务的端口等等信息,/etc/inetd.conf是inetd的配置文件,由它来指定那些服务可以由inetd来监听,以及相应的服务进程的调用命令.首先介绍一下/etc/services文件,/etc/services文件是一个服务名和服务端口对应的数据库文件,如下面所示: # /etc/services: # $Id: services,v 1.4 2000/01/23 21:03:36 notting Exp $ # # Network services, Internet style # # Note that it is presently the policy of IANA to assign a single well-known # port number for both TCP and UDP; hence, most entries here have two entries # even if the protocol doesn\\\'t support UDP operations. # Updated from RFC 1700, ``Assigned Numbers\\\'\\\' (October 1994). Not all ports # are included, only the more common ones. #名称 端口/协议 别名 注释 tcpmux 1/tcp # TCP port service multiplexer echo 7/tcp echo 7/udp discard 9/tcp sink null discard 9/udp sink null systat 11/tcp users daytime 13/tcp daytime 13/udp netstat 15/tcp qotd 17/tcp quote msp 18/tcp # message send protocol msp 18/udp # message send protocol chargen 19/tcp ttytst source chargen 19/udp ttytst source ftp-data 20/tcp ftp 21/tcp fsp 21/udp fspd ssh 22/tcp # SSH Remote Login Protocol ssh 22/udp # SSH Remote Login Protocol telnet 23/tcp # 24 - private smtp 25/tcp mail # 26 - unassigned time 37/tcp timserver time 37/udp timserver rlp 39/udp resource # resource location nameserver 42/tcp name # IEN 116 whois 43/tcp nicname re-mail-ck 50/tcp # Remote Mail Checking Protocol re-mail-ck 50/udp # Remote Mail Checking Protocol domain 53/tcp nameserver # name-domain server domain 53/udp nameserver mtp 57/tcp # deprecated bootps 67/tcp # BOOTP server bootps 67/udp bootpc 68/tcp # BOOTP client bootpc 68/udp tftp 69/udp gopher 70/tcp # Internet Gopher gopher 70/udp rje 77/tcp netrjs finger 79/tcp www 80/tcp http # WorldWideWeb HTTP www 80/udp # HyperText Transfer Protocol link 87/tcp ttylink kerberos 88/tcp kerberos5 krb5 # Kerberos v5 kerberos 88/udp kerberos5 krb5 # Kerberos v5 supdup 95/tcp # 100 - reserved hostnames 101/tcp hostname # usually from sri-nic iso-tsap 102/tcp tsap # part of ISODE. csnet-ns 105/tcp cso-ns # also used by CSO name server csnet-ns 105/udp cso-ns rtelnet 107/tcp # Remote Telnet rtelnet 107/udp pop2 109/tcp pop-2 postoffice # POP version 2 pop2 109/udp pop-2 pop3 110/tcp pop-3 # POP version 3 pop3 110/udp pop-3 sunrpc 111/tcp portmapper # RPC 4.0 portmapper TCP sunrpc 111/udp portmapper # RPC 4.0 portmapper UDP auth 113/tcp authentication tap ident sftp 115/tcp uucp-path 117/tcp nntp 119/tcp readnews untp # USENET News Transfer Protocol ntp 123/tcp ntp 123/udp # Network Time Protocol netbios-ns 137/tcp # NETBIOS Name Service netbios-ns 137/udp netbios-dgm 138/tcp # NETBIOS Datagram Service netbios-dgm 138/udp netbios-ssn 139/tcp # NETBIOS session service netbios-ssn 139/udp imap2 143/tcp imap # Interim Mail Access Proto v2 imap2 143/udp imap (实际上,以上仅仅是/etc/services的一部分,限于篇幅没有全部写出) 返回类别: 教程 上一教程: 系统减肥 卸载WINDOWS的集成组件 下一教程: LINUX系统命令整理:磁盘治理篇[7] 您可以阅读与"LINUX系统中网络配置详解[7]"相关的教程: · LINUX系统中网络配置详解[6] · LINUX系统中网络配置详解[8] · LINUX系统中网络配置详解[9] · LINUX系统中网络配置详解[2] · LINUX系统中网络配置详解[4] |
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