LinuxSA Mailing list archives

  From: Anthony Symons <ant@sa.pracom.com.au>
  To  : Anthony Symons <ant@sa.pracom.com.au>
  Date: 09 Nov 2001 16:36:53 +1030

Re: Article on Linux+

Arrgh. I jumped the gun. Time to more closely research umasks. I thought
they were the same syntax as setting permisions.

[ant@ant ant]$ umask 12
[ant@ant ant]$ touch test
[ant@ant ant]$ ls -al test
-rw-rw-r--    1 ant      ant             0 Nov  9 16:36 test

Ant

On Fri, 2001-11-09 at 16:25, Anthony Symons wrote:
> Yes, it all sounds dodgy to me. What about this?
> 
> Question 4
> With a umask value of 12, what are the default permissions 
>         assigned to newly created files? 
>      
> a.             ---x--x-wx
> b.             -rw-rw-r--
> c.             -r-xr-xr--
> d.             -rw-rw----
> 
> I make it ----(--x)(-w-), and so does my linux system:
>                  1   2 = 12
> 
> [ant@ant ant]$ touch test
> [ant@ant ant]$ ls -al test
> -rw-rw-r--    1 ant      ant             0 Nov  9 16:22 test
> [ant@ant ant]$ chmod 12 test
> [ant@ant ant]$ ls -al test
> ------x-w-    1 ant      ant             0 Nov  9 16:22 test*
> 
> Ant
> 
> On Fri, 2001-11-09 at 16:43, Richard Sharpe wrote:
> > Hi,
> > 
> > While I managed to learn two things from the article at:
> > http://www.unixreview.com/documents/s=1780/urm0111c/0111c.htm, I have
> > some criticisms of the questions posted in the article.
> > 
> > See what you think.
> > 
> > |Question 1
> > |You want to allow users to access the CD-RW device on your machine from
> > |any other host on the network via NFS. Further, you only want them to
> > |have read-only access to the device. Which line should you add to the
> > |/etc/exports file to allow this?
> > |
> > |a.              /mnt /cdrom *(ro)
> > |
> > |b.             /mnt /cdrom *(r)
> > |
> > |c.             /mnt /cdrom *
> > |
> > |d.             /mnt /cdrom
> > 
> > There is very clearly a space between /mnt and /cdrom. Also, unless the
> > checks I just did on my RedHat 7.0 system are fundamentally flawed, a,
> > c, and d all achieve what you want, so the question is ambiguous.
> > 
> > |Question 2
> > |Which of the following files defines how FTP connection requests are
> > |processed by the TCP Wrapper?
> > |
> > |a.             ftpusers
> > |
> > |b.             inetd.conf
> > |
> > |c.             ftpaccess
> > |
> > |d.             xferlog
> > 
> > I do not think that any of the above files defines *how* FTP connection
> > requests are handled by tcp wrappers. /etc/inetd.conf on some (many)
> > Linux systems specifies that tcpd is invoked for incoming FTP requests,
> > and a couple of other files define *how* they are handled.
> > 
> > |Question 16
> > |By default, which of the following files would constitute the Apache
> > |document root?
> > |
> > |a.             smb.conf
> > |
> > |b.             httpd.conf
> > |
> > |c.             apache.conf
> > |
> > |d.             index.html
> > 
> > I think that this question is badly worded, because the 'document root'
> > is the place where HTML documents are placed and is defined in
> > httpd.conf. Also, I don't think that the supplied answer is correct, either:
> > 
> > |16. B. The default document root under Apache is the
> > |/etc/httpd/conf/httpd.conf file.
> > 
> > The DocumentRoot definition in my httpd.conf file is:
> > 
> > DocumentRoot "/var/www/html"
> > 
> > This question and its answer is just too confusing!
> > 
> > |Question 18
> > |Which field of the /etc/passwd file holds the passwords for users?
> > |
> > |a.             first
> > |
> > |b.             second
> > |
> > |c.             third
> > |
> > |d.             fourth
> > 
> > Passwords are not kept in the /etc/passwd file. At best, password hashes
> > are kept there. In addition, if /etc/shadow is in use, then password
> > hashes are not kept in /etc/passwd.
> > 
> > 
> > 
> > -- 
> > Richard Sharpe, rsharpe@ns.aus.com, LPIC-1
> > www.samba.org, www.ethereal.com, SAMS Teach Yourself Samba
> > in 24 Hours, Special Edition, Using Samba
> > 
> > 
> > 
> > -- 
> > LinuxSA WWW: http://www.linuxsa.org.au/  IRC: #linuxsa on irc.linux.org.au
> > To unsubscribe from the LinuxSA list:
> >   mail linuxsa-request@linuxsa.org.au with "unsubscribe" as the subject
> > 
> -- 
> Systems Administrator       
> Pracom Ltd.             
> +61 8 82029074 -=- +61 402 100 671 
> anthony.symons@sa.pracom.com.au
> 
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-- 
Systems Administrator       
Pracom Ltd.             
+61 8 82029074 -=- +61 402 100 671 
anthony.symons@sa.pracom.com.au

PRIVILEGED - PRIVATE AND CONFIDENTIAL
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