2. 程序

首先，你需要一个运行中的 LRP 版本 - 你可以自己构建磁盘，或者你可以从以下地址获取我的镜像：http://www.computechnology.com/pslave1440.img。 这是我的工作磁盘的副本，你可以直接将镜像写入你的磁盘。 这将帮助你入门。 之后你只需要更改为适当的 IP 号码和网卡驱动程序。 我不会在这里深入讨论构建 lrp 磁盘，因为关于这个主题似乎有相当好的文档可用。

假设你已经构建了磁盘，并且你的计算机正在运行，以下是我们需要做的来配置你的磁盘。

首先，删除（是的，我说的是删除）所有options.tty??文件、options 文件和 pap-secrets 文件，它们位于/etc/ppp-radius和/etc/ppp下。 如果你有一个/etc/ppp，你可能安装了ppp.lrp。 还要移除你磁盘中的ppp.lrp，并且/etc/ppp将会消失。

下一步，前往/etc/portslave并相应地调整pslave.conf文件。 我现在将逐行带你了解该文件。 我不知道它的所有含义，但我让它工作了，你也可以。

# # pslave.conf Here is the sample server configuration file. # # Version: 1.17 03-Nov-1998 # # # Hostname of the system. # # This is my routers name. Your routers name will be different conf.hostname hma2.cpty.net # # IP address - if left empty, uses the IP address of the system (hostname). # # This is used as the "local" address for SLIP and PPP connections. # This is my routers IP address yours will be different use your routers # IP number here conf.ipno 10.0.0.4 # # Lock directory - on FSSTND compliant systems it's /var/lock. # # No need to change this conf.lockdir /var/lock # # Where to find the rlogin binary that accepts the "-i" flag. # # No need to change this conf.rlogin /usr/bin/rlogin-radius # # Where to find our patched pppd that has radius linked in. # # No need to change this conf.pppd /usr/sbin/pppd-radius # # Where to find telnet. This can just be the system telnet. # # This can stay or go conf.telnet /usr/bin/telnet # # If you set this to "1", you can always login locally by putting a '!' # before your loginname. Useful for emergencies when the RADIUS server is down. # Make this either 0 or 1 as mentioned above conf.locallogins 1 # # Logging stuff - this program can use a remote syslog daemon if needed. # # If you want to log locally leave the "syslog" field empty. The facility # field is an integer between 0 and 7 and sets the syslog facility to # local0-local7. # # For now I log local to my router that is why I do not have anything # after syslog conf.syslog conf.facility 6 # # Stripnames - if you set this to "1", leading "P", "S", "C", "L" or "!" # characters and trailing ".slip", ".cslip" and ".ppp" strings will be # stripped from the username before it is recorded in the system # utmp and wtmp files (if sysutmp or syswtmp are turned on of course) # # No need to change this conf.stripnames 0 ## ## The all entry is used as a template for all others. This means that ## setting all.debug to 0, you set s0.debug, s1.debug, s2.debug etc. ## to 0. It also means that all these settings can be overridden on a ## per-port basis below. ## ## The "all." stuff is the default for everything unless you specifically ## override it. I'll show you that at the end of this. # # Debugging output to syslog. Set to 0 or 1. "1" is pretty verbose. # This can be 0 or 1. I like 1 because it gives lots of info all.debug 1 # # Authentication type - either "radius" or "none". # # Leave this as it is all.authtype radius # # Authentication host and accounting host. We can have 2 of both. The # first one is always tried three times before switching to the second one. # They are alternately tried after that, up to maximum 10 times in total. # Timeout is 5 seconds per query. # # These are the names of my RADIUS servers; name your RADIUS servers here all.authhost1 cody.cpty.net all.accthost1 cody.cpty.net #all.authhost2 backuphost.someisp.com #all.accthost2 backuphost.someisp.com # # # The shared secret for RADIUS. # # Put your shared secret here, this must match the shared secret in # your RADIUS servers clients file for the IP number or name of this router. all.secret superagentman # # Default protocol and host. This is for rlogin sessions. # # Just change the all.host to the IP number of your router this should # match what you have at the top of this file all.protocol rlogin all.host 10.0.0.4 # # Default IP stuff. If you end the "ipno" with a "+", the portnumber will # be added to the IP number. The IP number of a port is used when the RADIUS # server doesn't send an IP number, or if it tells us to use a dynamic ipno. # # Leave the netmask at 255.255.255.255, unless you really know what # you're doing. # # This seemed a little confusing, but since I went with static IP numbers # this was easy. I do not have "+" after my IP number because I directly # assign the IP number to a MODEM at the end of this file. # # I modified the netmask to match that of my network. And I left MTU alone all.ipno 10.0.0.4 all.netmask 255.255.255.0 all.mtu 1500 # # Standard message that is issued on connect. # # No need to change this all.issue \n\ Cistron Internet Services \n\ POP Alphen aan den Rijn \n\ Welcome to terminal server %h port S%p\n # # Login prompt. # # No Need to change this all.prompt Cistron login: # # Terminal type, for rlogin/telnet sessions. # # No need to change this all.term vt100 # # If you want portslave to update the utmp and/or wtmp files just # like a regular getty/login, set these to 1. # # I set both of these to 1; you can do what you want here all.sysutmp 1 all.syswtmp 1 ## ## Options for the serial port. ## # # Porttype (passed to Radius for logging). # 0 = async, 1 = sync, 2 = ISDN, 3 = ISDN-V120, 4 = ISDN-V110 # # Use 0 if its a modem all.porttype 0 # # Speed. All ports are set to 8N1. # # Set this to just beyond your max modem speed all.speed 115200 # # Use this to initialize the modem. # # I had to make this AT&F to reset the modem to it's defaults # each time ATZ did not work. If you are not familiar with scripting # then some of this won't make sense to you. That's ok; I didn't get u # it either until I played with it. all.initchat "" \d\dAT&F OK\r\n-AT&F-OK\r\n # # You can use either waitfor or aa. # # No need to change this all.waitfor RING # # Chat string to get the modem to connect after waitfor. # # The @ sign matches (.*)[\r\n] in regexp code, the match is logged # to Radius as Connection-Info. # # No need to change this all.answer "" ATA CONNECT@ # # Auto answer - if you set this to "1", the system will just wait for # the DCD line to get high (this is not well tested). You won't get # the connection info either. # # No need to change this all.aa 0 # # You can use this chatstring to regulary check if the modem is still alive. # # NOT IMPLEMENTED YET. # # I don't know if this line works or not. Let me know if you find anything # out about it. Just leave it the same and portslave will work. all.checktime 60 all.checkchat "" AT OK\r\n # # Flow control on this serial port: # # hard - hardware, rts/cts # soft - software, CTRL-S / CTRL-Q # none # # No need to change this all.flow hard # # Use the DCD line or not (this sets CLOCAL if on). This means that the # session will get hung up if the modem hangs up. Can be set to 0 or 1. # # No need to change this all.dcd 1 # # PPP options - used if we autodetect a PPP session. # # Note that we set mru and mtu both to the MTU setting. # # Look at these lines close; this is what worked for me. # These parameters are sent to the ppp daemon when it # is called. I think the autoppp is called first then # after you are authenticated I think the second ppp is # called. I don't know for sure that this is how it worked, # but it appears that way to me all.autoppp proxyarp modem asyncmap 0 %i: \ noipx noccp login auth +pap -chap \ mtu %t mru %t \ ms-dns 208.206.143.35 ms-dns 208.206.143.36 \ uselib /usr/lib/libpsr.so # # PPP options - User already authenticated and service type is PPP. # all.pppopt proxyarp modem asyncmap 0 %i:%j \ noipx noccp \ mtu %t mru %t netmask %m idle %I \ ms-dns 208.206.143.35 ms-dns 208.206.143.36 \ uselib /usr/lib/libpsr.so ## ## Tty names are s0...s63. For every port we need to define a tty port, and ## an IP number for when radius tells us to pick one ourself. Unless you ## use the IP pool option mentioned above (IP number with "+" appended). ## ## Note that you can change _all_ of the above settings that start ## with all.xxxx on a per-port basis, such as issue, prompt etc. ## ## This is where you can set options to a specific modem. sX.tty is ## for portslaves use you assign it to a real tty device. ## In the /etc/inittab you will see the lines portlsave 0 or 1 etc.. ## this 0 or 1 is the tty device number portslave already knows it is ## "tty something" so all it requires is the last digits. ## ## Since my modem is on COM 4 (DOS) that means s3.tty is ttyS3 s3.tty ttyS3 # Now I can set options for that modem # # Here is it's IP number statically assigned s3.ipno 10.0.0.202 # Here is the protocol to use on that modem. PAY CLOSE ATTENTION HERE! # This is the line that finally made portslave work perfectly for me. # You must tie the ppp protocol to your modem. Simple huh? s3.protocol ppp