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第 18 章 installation


18.1. chroot

过程 18.1. install cvs

  1. install

    $ sudo apt-get install xinetd
    $ sudo apt-get install cvs

    show the cvs version

    $ cvs -v
    Concurrent Versions System (CVS) 1.12.13 (client/server)
  2. create cvs group and cvsroot user

    $ sudo groupadd cvs
    $ sudo adduser cvsroot --ingroup cvs

    change user become cvsroot

    $ su - cvsroot
  3. initialization 'CVSROOT'

    $ cvs -d /home/cvsroot init

    if you have successed, you can see CVSROOT directory in the '/home/cvsroot'

    $ ls /home/cvsroot/
  4. authentication

    default SystemAuth=yes, you can use system user to login cvs.

    but usually, we don't used system user because it isn't security.

    SystemAuth = no

    edit '/home/cvsroot/CVSROOT/config' make sure SystemAuth = no

    $ vim /home/cvsroot/CVSROOT/config
    SystemAuth = no

    create passwd file

    the format is user:password:cvsroot

    you need to using htpasswd command, if you don't have, please install it as the following

    $ sudo apt-get install apache2-utils


    $ perl -e 'print("userPassword: ".crypt("secret","salt")."\n");'


    $ cat passwd
    srand (time());
    my $randletter = "(int (rand (26)) + (int (rand (1) + .5) % 2 ? 65 : 97))";
    my $salt = sprintf ("%c%c", eval $randletter, eval $randletter);
    my $plaintext = shift; my $crypttext = crypt ($plaintext, $salt);
    print "${crypttext}\n";
    $ ./passwd "mypasswd"

    let's using htpasswd to create a passwd

    $ htpasswd -n neo
    New password:
    Re-type new password:

    copy 'neo:yA50LI1BkXysY' and add ':cvsroot' to the end

    $ vim /home/cvsroot/CVSROOT/passwd
  5. Go into directory '/etc/xinetd.d/', and then create a cvspserver file as the following.

    $ sudo vim /etc/xinetd.d/cvspserver
    service cvspserver
       disable = no
       flags = REUSE
       socket_type = stream
       wait = no
       user = cvsroot
       server = /usr/bin/cvs
       server_args = -f --allow-root=/home/cvsroot pserver
       log_on_failure += USERID
  6. check cvspserver in the '/etc/services'

    $ grep cvspserver /etc/services
    cvspserver      2401/tcp                        # CVS client/server operations
    cvspserver      2401/udp
  7. restart xinetd

    $ /etc/init.d/xinetd
    Usage: /etc/init.d/xinetd {start|stop|reload|force-reload|restart}
  8. port

    $ nmap localhost -p cvspserver
    Starting Nmap 4.53 ( http://insecure.org ) at 2008-11-14 16:21 HKT
    Interesting ports on localhost (
    2401/tcp open  cvspserver
    Nmap done: 1 IP address (1 host up) scanned in 0.080 seconds
  9. firewall

    $ sudo ufw allow cvspserver

environment variable


vim .bashrc

export CVS_RSH=ssh
export CVSROOT=:pserver:neo@localhost:/home/cvsroot


$ cvs login
Logging in to :pserver:neo@localhost:2401/home/cvsroot
CVS password:
neo@netkiller:/tmp/test$ cvs co test
cvs checkout: Updating test
U test/.project
U test/NewFile.xml
U test/newfile.php

18.1. chroot

$ sudo apt-get install cvsd

environment variable

neo@netkiller:~/workspace/cvs$ export CVSROOT=:pserver:neo@localhost:/home/cvsroot


export CVS_RSH=ssh
export CVSROOT=:ext:$USER@localhost:/home/cvsroot
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