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WebDAV

WebDAV Server Settings

WebDAV でファイルを作成すると, www-data ユーザで出来てしまう. 他ユーザにアクセスされると破綻するので, telnet/ssh は禁止しなければならない.

ここで UNIX ユーザについての話を.

• The point is, UID, GID, and sticky bits can be used in conjunction, like you can choose two at the same time from the three bits.
  重要なのは、UID, GID, Sticky bit は、組み合わせて 選択可能だと言うことです。

  sticky bit: drwxr-xr-t foo

  $ chmod a+t foo
  

  This will give `a' (a: all users or `ugo') the permission to create a directory in the same way as this directory is created.

  $ mkdir foo/bar
  $ ls -l
  

  You can set a sticky bit for a directory only, and a sticky bit does not propagate to the child of the directory. And in the directory with the bit set, any users can write to files and directories, but they can only be deleted by the owner.

  setuid and setgid bits:
  rwsrwsr-x foo
  rwxrwsr-x foo
  

  While suid can only be set for executable files, sgid can be set for executive files or directories that you can enter.

  sgidはディレクトリにも設定することができます。sgidが設定されたディレクトリ直下で作成されたファイルは、その所有グループがディレクトリの所有グループになります。

  sgid が便利なのはあるグループで共同作業したい場合などです。共同作業したいメンバーが所属するグループが所有グループのディレクトリを作成してsgidビットを設定すると、そこで作成したファイルの所有グループは誰が作成したものでもディレクトリの所有グループになり、グループのメンバーであれば編集することが可能になります。通常はパーミッションや所有グループの変更をファイル毎にしなければならないのですが、その手間を省くことができます。

  共同作業は chmod g+s .

  a2enmod mod_dav a2enmod mod_dav_svn ( LoadModule dav_module modules/mod_dav.so LoadModule dav_svn_module modules/mod_dav_svn.so ) <Location /repos> DAV svn SVNPath /absolute/path/to/repository ( SVNParentPath ) </Location> ( A new location cannot overwrap with other open locations. ) svnadmin create ~/repo svnadmin create /usr/local/svn/repos svn import /tmp/foodir file:///home/ryu/repo/foodir -m "Initial import"
  mod_ldap: LoadModule ldap_module mod_authnz_ldap: LoadModule authnz_ldap_module

• In the httpd configuration file, ServerName or ServerAlias directive can be the common name of the domain such as `foodomain.sh'. Be careful it has to be enabled in the zone files in DNS configuration to make the common domain name seen like a server.

  • /etc/apache2/sites-enabled/bar in Debian case

  ServerName = foodomain.sh
  ServerAlias = bar.foodomain.sh www.foodomain.sh
  

  The zone file is usually located in:

  • /etc/bind/zones/ (Debian), /var/named/ (Slackware) or /var/named/chroot/var/named/ (RedHat)

    IN A 192.168.252.252  ; Blank host name is given.
  bar IN A 192.168.252.252
  www IN CNAME bar.foodomain.sh.
  

  This empty name line is significant above.

DAV client from Windows

I'm not sure which way to go because it's like a puzzle. I need help with this section.

• It didn't write to a file when I tried access to webdav through Explorer : unresolved

• It doesn't work with SSL (webdavs) turned on : unresolved

Command line WebDAV interfaces in Linux

• Cadaver :

  You can install Cadaver to use WebDAV from command line.

  It will be stable at all times and come into the server in a usual way:

  ./configure --prefix=/home/username
  make
  make install
  

  However, you will need to set the proxy in your configuration file in your home, in some weird situation.

  $ cat > ~/.cadaverrc
  set proxy web-proxy.jpn.agilent.com
  set proxy-port 8080
  

  • WebDAV uploader using cadaver `webdavput.sh'
• davfs:

  davfs needs root to modify /etc/fstab but it can be useful to mount a remote directory whenever you want to.

• Eldav with Emacs:

  Put `eldav.el' and 'vc-eldav.el' in `emacs/site-lisp/' and edit `~/.emacs' as shown below.

  (require 'eldav)
  (setq eldav-proxy "http://web-proxy.jpn.agilent.com:8080")
  (enable-eldav)
  

  Note the eldav-proxy variable requires `http://' prefix.

• nd : unresolved

  It also provides a command line interface to RFC 2518 (WebDAV) server, but when I just assign http_proxy variable with a value to pass the data through the proxy, it throws off this message:

  Error: GET failed, `System Error'

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