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1、linux常用资源列表,linux常用配置列表3. 网络配置文件 3.1 /etc/hosts #/etc/hosts #文件格式: IPaddress hostname aliases #文件功能: 提供主机名到IP地址的对应关系，建议将自己经常使用的主机 # 加入此文件中，也可将没有DNS记录的机器加入到此文件中， # 这样会方便网络应用 127.0.0.1 localhost localhost.localdomain 202.118.66.81 helius 3.2 /etc/resolv.conf 文件功能：DNS客户机配置文件，设置DNS服务器的IP地址及DNS域名 相关文件：/
2、etc/host.conf 文件格式： domainname 域名 search 域名 nameserver Primary_DNS_Server_IP_address nameserver Second_DNS_Server_IP_address 其中domainname和search可同时存在，也可只有一个；nameserver可指定多个 示例文件内容： search nameserver 202.118.66.6 3.3 /etc/host.conf 功能：指定主机名查找方法，通常指先查找文件/etc/hosts,找不到时再向DNS服务器请求。 对于大多数用户不用改动此文件内容。 Li
3、nux: /etc/host.conf文件内容 order hosts, bind multi on Soalris: /etc/nsswitch.conf 中的hosts项 hosts files, dns 3.4 /etc/HOSTNAME ( Linux Redhat 5.x Distribution) 功能：设置主机名，不同LINUX之间可能有所差别，请使用 egrep hostname /etc/rc.d/init.d/* 或 egrep hostname /etc/init.d/* 查找相应版本上的主机名设置文件及方法。 Linux Redhat 5.x对应文件: /etc/sys
4、config/network的HOSTNAME项。 3.5 /etc/inetd.conf Internet 超级服务器, 相关程序: /usr/sbin/inetd 相应服务: telnet ftp pop3 r* rsh rcp rlogin (建议最好关闭r服务) 其他服务最好关掉 # # inetd.conf This file describes the services that will be available # through the INETD TCP/IP super server. To re-configure # the running INETD process
5、, edit this file, then send the # INETD process a SIGHUP signal. # # Version: (#)/etc/inetd.conf 3.10 05/27/93 # # Authors: Original taken from BSD UNIX 4.3/TAHOE. # Fred N. van Kempen, # # Modified for Debian Linux by Ian A. Murdock # # Modified for RHS Linux by Marc Ewing # # # # Echo, discard, da
6、ytime, and chargen are used primarily for testing. # # To re-read this file after changes, just do a killall -HUP inetd # #echo stream tcp nowait root internal #echo dgram udp wait root internal #discard stream tcp nowait root internal #discard dgram udp wait root internal #daytime stream tcp nowait
7、 root internal #daytime dgram udp wait root internal #chargen stream tcp nowait root internal #chargen dgram udp wait root internal # # These are standard services. # ftp stream tcp nowait root /usr/sbin/tcpd in.ftpd -l -a telnet stream tcp nowait root /usr/sbin/tcpd in.telnetd gopher stream tcp now
8、ait root /usr/sbin/tcpd gn # do not uncomment smtp unless you *really* know what you are doing. # smtp is handled by the sendmail daemon now, not smtpd. It does NOT # run from here, it is started at boot time from /etc/rc.d/rc#.d. #smtp stream tcp nowait root /usr/bin/smtpd smtpd #nntp stream tcp no
9、wait root /usr/sbin/tcpd in.nntpd # # Shell, login, exec and talk are BSD protocols. # shell stream tcp nowait root /usr/sbin/tcpd in.rshd login stream tcp nowait root /usr/sbin/tcpd in.rlogind #exec stream tcp nowait root /usr/sbin/tcpd in.rexecd talk dgram udp wait root /usr/sbin/tcpd in.talkd nta
10、lk dgram udp wait root /usr/sbin/tcpd in.ntalkd #dtalk stream tcp waut nobody /usr/sbin/tcpd in.dtalkd # # Pop and imap mail services et al # pop-2 stream tcp nowait root /usr/sbin/tcpd ipop2d pop-3 stream tcp nowait root /usr/sbin/tcpd ipop3d imap stream tcp nowait root /usr/sbin/tcpd imapd # # The
11、 Internet UUCP service. # #uucp stream tcp nowait uucp /usr/sbin/tcpd /usr/lib/uucp/uucico -l # # Tftp service is provided primarily for booting. Most sites # run this only on machines acting as boot servers. Do not uncomment # this unless you *need* it. # #tftp dgram udp wait root /usr/sbin/tcpd in
12、.tftpd #bootps dgram udp wait root /usr/sbin/tcpd bootpd # # Finger, systat and netstat give out user information which may be # valuable to potential system crackers. Many sites choose to disable # some or all of these services to improve security. # # cfinger is for GNU finger, which is currently
13、not in use in RHS Linux # finger stream tcp nowait root /usr/sbin/tcpd in.fingerd #cfinger stream tcp nowait root /usr/sbin/tcpd in.cfingerd #systat stream tcp nowait guest /usr/sbin/tcpd /bin/ps -auwwx #netstat stream tcp nowait guest /usr/sbin/tcpd /bin/netstat -f inet # # Time service is used for
14、 clock syncronization. # time stream tcp nowait nobody /usr/sbin/tcpd in.timed time dgram udp wait nobody /usr/sbin/tcpd in.timed # # Authentication # auth stream tcp nowait nobody /usr/sbin/in.identd in.identd -l -e -o # # End of inetd.conf linuxconf stream tcp wait root /bin/linuxconf linuxconf -h
15、ttp 3.6 inetd.conf相关文件/etc/services(SYSV/BSD/LINUX相同) 基本不用编辑,linux自带的已包含大部分服务, Solaris 可能需要增加(POP3), 参考相应的服务器安装说明，在此文件中列出了所有可用的网络服务。 # # services This file describes the various services that are # available from the TCP/IP subsystem. It should be # consulted instead of using the numbers in the ARPA # include files, or, worse, just guessing them. # # Version: (#)/etc/services 2.00 04/30/93 # # Author: Fred N. van Kempen, # # 文件格式：服务名称
