GD Lib with Bugzilla

Trying to get libpng and libjpeg support ??  You will need to install the developer versions of the libraries, on Fedora the easiest way is to use up2date ie. up2date libjpeg-devel and up2date libpng-devel this will install it then the configure for the makefile of libgd will pick the libraries up and install support for them.

Also dont use the ./configure.pl do make and then make install dont use the make install straight away this then works for me on Fedora Core 3.

Apache2 and PHP5 and missing apxs file on Fedora Core 3

Ok next problem that I bumped into today while trying to install PHP5 on Apache2.  In the php instructions it tells you to use the –with-apxs2 and point that to the apxs file.  Now the standard install of Fedora 3 doesnt install this file for you, so you need to install the httpd-devel package.  This can be done easily using up2date with this command.

up2date httpd-devel

and this will install the apxs file which for should now sit in /usr/sbin

then to configure the php5 issue the command

./configure –with-apxs2=/usr/sbin/apxs –with-mysql

hope that helps

Checkpassword-0.90 Compilation Error on Fedora Core 3

Ok now next problem that I ran into in trying to get qmail running on the distrubution is that checkpassword-0.90 doesnt want to compile and looking on the web there is 1 arabic website explaining how to get around this which I cant understand but with again more pain I have finally cracked it.

In the source directory of checkpassword you will need to change the error.h file to include errno.h just after the line extern int errno like so…

extern int errno;

#include

then recompile and everything should work. 

IPTABLES doesn't work on initial boot

Now for a long long time I have been perplexed by why my firewall never works on my linux boxes on initial boot. 

When you run iptables –list is shows all the rules but never works until you run it again under the root account.  Now I finally got around to finding out why and its because the ipv4 forwarding is being reset somewhere down the boot chain.  Yep I found it, what you need to do is edit /etc/sysctl.conf and change the net.ipv4.ip_forward = 1 as this is set to 0 by default and switches off all forwarding used in any firewall script.

Now I did have the forwarding set in the script but the sysctl appears to run after all the startup processes.

Hope this helps as it certainly has been puzzling me for sometime.

FTP on Linux Freezes on command – ls

Something that I was suffering from when I tried to use ftp on linux, everytime I tried to do ‘ls’ to list the files FTP would freeze and not seem to do anything.

After quite a lot of pain, I noticed that a few of the important modules had not been loaded for the firewall – IPTABLES.  You must have the following modules loaded or built into your kernel for FTP to work through the firewall …

  • ip_conntrack
  • ip_conntrack_ftp
  • ip_nat_ftp

if you want to load them as modules then use modprobe.

Getting the Source Code for the Kernel of Linux Fedora 3 Distribution

Fedora no longer installs the source for its installations so if you need to rebuild the kernel you will need to get the source the easiest way is as follows:

  1. up2date –get-source kernel
  2. Install kernel-.src.rpm (given the default RPM configuration, the files this package contains will be written to /usr/src/redhat/) [NOTE: if this fails you should find the kernel src rpm from your up2date and download it manually and then use rpm -i ]
  3. Change directory to /usr/src/redhat/SPECS/, and issue the following command: rpmbuild -bp –target= kernel.spec (Where target is the desired target architecture.)
  4. On a default RPM configuration, the kernel tree will be located in /usr/src/redhat/BUILD/.
    In resulting tree, the configurations for the specific kernels shipped in Fedora Core 3 are in the /configs/ directory. For example, the i686 SMP configuration file is named /configs/kernel--i686-smp.config. Issue the following command to place the desired configuration file in the proper place for building:
  5. cp ./.config
  6. Issue the following command:  make oldconfig if you want to use the oldconfig or make menuconfig if you want to put in new stuff

then read the readme.txt file which comes with Fedora for building but normally do the following

  1. make
  2. make modules_install install

this now updates grub (if your using it) automatically

Building the Linux-ATM software on Fedora Core 3 on a VIA C3 Processor

Recently I built the linux-atm software, which is an atm utility which allows me to use my pci ADSL card on linux.

The latest release is version 2.4.1 which I pulled down off of sourceforge, and I then tried to compile it.  This is what I fell fowl of..

1. The source has four compilation errors which are at lines with default: in the case statements these need ; after them, you can either edit the four bits of source code yourself or get a patched version of the code from here.

2. Then I kept getting the error ‘storage size of req is not know’ and ‘invalid application of sizeof to incomplete type atmif_soic’ which I realised that I had the paths to my kernel source incorrect.  Now I put in a symbolic link to the source so /usr/src/linux pointed to /usr/src/redhat/BUILD/kernel-2.6.9/linux-2.6.9/include [ which is where the source really was ].  So to correct this error I typed this before running the configure of linux-atm.

CFLAGS=-I/usr/src/linux ./configure

and that got me over that problem.

3.  Then I got the error ‘config.h:6:2 error including kernel header in userspace use the glibc headers instead’ in atmdev.h to get around this I changed the line config.h to autoconf.h

Then it all worked and everything was installed into /usr/local/bin and /usr/local/sbin.

Hope that has helped someone.  The linux-atm package has been around for sometime but I didnt think the documentation or notes about how to change the path to pick up your distributions source code was that clear.

Fedora Core 2 installation patch for Epia Mini-ITX

As you may be aware the original Fedora Core 2 installation will just keep rebooting on an Epia Mini-ITX machine.  There are many newsgroups articles about this subject but I believe that they are all a little confusing so here is what I had to do to install Fedora Core 2 on to my Epia Mini-ITX CL600 machine.

First download the patch from http://people.redhat.com/arjanv/c3boot-2.iso and burn it on to a cd, then boot off of the new burnt cd.

The next set of instructions assume the text version of the installation

  • Go into the text installation by typing linux text at the prompt
  • Keep going through the installation until you get a warning message that the fedora disc is not in the drive, swap the original Fedora Core 2 disc 1 back into the drive.
  • Go through the normal installation steps for Fedora Core 2 until it says the installation is complete, then remove the CD then type Ctrl-Alt-F2 to get a console window.
  • The original Fedora Core 2 disc had already ejected so replace that with the patched CD that you burnt before starting the installation.
  • I then made a directory in /mnt/sysimage called source.
  • I then mounted the patched cd onto that directory [Note: the cdrom device is in tmp on my installation not /dev like other instructions say]  mount /tmp/cdrom /mnt/sysimage/source -t iso9660
  • Then chroot /mnt/sysimage
  • rpm -Uvf /mnt/sysimage/source/kernel*
  • once that has finished type Ctrl-Alt-F1 to go back to the original installation
  • Reboot as per original installation and it should boot into a working kernel

POP3: unable to scan $HOME/Maildir?

Ok I run qmail here and funny thing was outlook wasnt logging into it. Thought I had been hacked or something. To see what the problem was I telnetted into my qmail box using

telnet mail.farrowcomputing.com 110

port 110 is the port designated to pop3, then put in your username

user  “username”

then password

pass “password”

and on my system was then seeing “Unable to scan $HOME/Maildir” looked into it and had 6000 spam messages, now the limit I have for mails is quite low so you either need to up it or delete some of the messages from the linux box running qmail or you will need to put the softlimit up, ie.

Try to increase the softlimit for pop3d which is found in your pop3d run script such as /var/qmail/service/pop3d/run (for e.g.): 

blah blah… softlimit -m 2000000 to higher value.

 

Samba and a Windows 2003 domain

If you were getting permission denied while mounting a w2k3 share onto a linux box then here is a suggestion to get around that

• On the Win2K3 server select Domain Controller Security Policy from the Administrative Tools menu
• Navigate to Local Policies|Security Options
• Disable “Microsoft network server: Digitally sign communications (always)”
• Since FC2 you will also need to disable “Microsoft network server: Digitally sign communications (if client agrees)”
• You can wait for the policy to propagate or run gpupdate from a command line

 

🙂