自由軟體教學平台

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耗钢莫
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1 NCHC Opensource task force DRBL National Center for High-Performance Computing Jan,

2 2003/1/28 ( ) 09:00-10:30 10:40-12:00 Linux 13:00-14:30 DRBL ( ) 14:40-16:30 DRBL ( ) 2003/1/29 ( ) 09:00-10:30 Linux/DRBL ( ) 10:40-12:00 Linux/DRBL ( ) 13:00-14:30 Linux/DRBL ( ) 14:40-16:30 Linux/DRBL ( ) 2

3 Outline DRBL 4. DRBL 5. DRBL 6. 3

4 , Live Linux Filesystem on CD,, file server NIS server 4

5 ( ) LTSP (Linux Terminal Server Project) Client Server DRBL (Diskless Remote Boot in Linux) Client Server -> DRBL + Live Linux CD 5

6 LTSP vs DRBL LTSP, DRBL - vs. 6

7 7

8 89 1,229,276 8

9 DRBL DRBL (diskless remote boot in Linux) etherboot + nfs + nis 1. PC (client machine) 2. server client DRBL 9

10 DRBL( ) Server LTSP (Linux terminal server project) server server DRBL server LTSP server server server 7. 10

11 DRBL public ip NIC 2 NIC 1 server NIC 3 NIC 4 private ip private ip private ip switch 1 switch 2 switch 3 node001 node013 node014 node027 node028 node040 ~ ~ ~ 11

12 : CPU 450MHz 256 MB fast ethernet ( ) 20GBytes. : CPU 300 Mhz 128 MB fast ethernet bootrom : fast ethernet switch, port client machine 40 client machines 2 24 ports switch 3 16 ports switch 12

13 server client node client node040 DHCP IP etherboot etherboot TFTP kernel boot boot NFS file system /, /usr, /home... /, /usr, /home... NIS account user login user login 13

14 Service DHCP, TFTP, NFS, NIS 1.DHCP server (Dynamic Host Configuration Protocol Server) - For distributing IP for every client - /etc/dhcpd.conf looks like: default-lease-time 21600; max-lease-time 21600; use-host-decl-names on; option subnet-mask ; subnet netmask { option broadcast-address ; option routers ; option domain-name-servers ; host node001 { hardware ethernet 00:50:BA:65:C0:58; fixed-address ; filename "vmlinuz.etherboot.viarhine"; }... } 14

15 Service( ) 2. TFTP server (Trivial File Transfer Protocol server) - For distributing kernel - /etc/xinetd.d/tftp looks like: service tftp { } socket_type protocol wait user server server_args disable per_source = 11 cps = = dgram = udp = yes = root = /usr/sbin/in.tftpd = -s /tftpboot = no 15

16 Service( ) 3. NFS server (Network File Sharing protocol server) - For mounting file system - /etc/exports looks like: /tftpboot/node (rw,no_root_squash) /usr (ro,no_root_squash) /opt (ro,no_root_squash) /home (rw,no_root_squash) /tftpboot/node (rw,no_root_squash) /usr (ro,no_root_squash) /opt (ro,no_root_squash) /home (rw,no_root_squash)... 16

17 Service( ) 4. NIS server (Network Information Service server) - For account authentization - /var/yp/securenets looks like: # allow connections from local host -- necessary host # same as # # allow connections from any host # on the network

18 1. server service dhcp server tftp server nfs server nis server (ypserv) 2. client machine remote boot kernel kernel etherboot bzimage mknbi-linux Tag 18

19 ( ) 3. server client /tftpboot ( node001 ),, dev, etc, lib, bin, sbin /tftpboot/node001 server NFS client,, client client /dev devfs, /tmp tmpfs server node ip redhat 7.3 client server 40MB 4.NCHC shell script client 19

20 1.NCHC Server Celeron 450MHz, 512MB ram, fast ethernet, Client:40 PC (PIII 550MHz, 256 MB Ram) 2.,, Server 1 GHz, 1 GB ram, gigabits ethernet, Client:40 PC ( 350 MHz, MB Ram) 3. Server 600 MHz, 1 GB ram, fast ethernet, Client:40 PC (750 MHz, 128 MB Ram) 4. Redhat & Debian Debian, Redhat script 20

21 Diskless HOWTO Diskless-nfs-root HOWTO Diskless-nfs-root-other HOWTO Network-boot-HOWTO NFS HOWTO NIS HOWTO 21

自由軟體教學平台

自由軟體教學平台 NCHC Opensource task force 自由軟體集中式管理的電腦教室與辦公環境 DRBL 黃國連蕭志榥 steven@nchc.gov.tw, c00hkl00@nchc.gov.tw 國家高速網路與計算中心 National Center for High-Performance Computing http://www.nchc.gov.tw Mar, 2003 1 研習時間表 2003/3/24