How to install mod_proxy on apache 1.3 on cPanel

If you are looking to install mod_proxy on Apache 1.3 under cPanel do the following:

1. Goto /home/cpin/installd/buildapache/apache_1.3.37/src/modules/proxy

2. Run this command
==
/usr/local/apache/bin/apxs -i -c *.c
==
That will install mod_proxy to apache 1.3

3. Now edit the httpd.conf file and add the below entry to it.

LoadModule proxy_module libexec/mod_proxy.so
AddModule mod_proxy.c

4. Save and exit the conf file.

5. Restart apache.

Filed under: Uncategorized by — aaron @ 1:33 am

HyperVM/Xen: Starting OpenBSD Secure Shell server: sshdPRNG is not seeded

Starting OpenBSD Secure Shell server: sshdPRNG is not seeded

If you are receiving this error message on Xen/HyperVM, try adding the following to /etc/init.d/local and reboot the VDS:

#!/bin/bash
cd /dev ; ./MAKEDEV urandom ; /etc/init.d/ssh start

Then run the following as root:

chmod 755 /etc/init.d/local
update-rc.d local start 98 2 3 4 5 .
mkdir /etc/rc.d/
ln -s /etc/init.d/local /etc/rc.d/rc.local

Filed under: Uncategorized by — aaron @ 6:48 pm

HyperVM/Xen nash-hotplug using 100% of resources (Debian)

Some of the default HyperVM templates have an issue with nash-hotplug taking a large amount of resources (usually 99%). If you are having this issue, a quick an easy way to fix this is add the following to /etc/rc.local on the guest VDS:

pkill -9 nash

This is a temporary fix, until a more permanent one is provided by Lxlabs/HyperVM. This problem is supposedly already fixed in CentOS 4, however seems to still appear in Debian 3. For debian, do the following:

Open up /etc/init.d/local and add:

#!/bin/bash
pkill -9 nash

Then run the following:

chmod 755 /etc/init.d/local
update-rc.d local start 98 2 3 4 5 .
mkdir /etc/rc.d/
ln -s /etc/init.d/local /etc/rc.d/rc.local

Filed under: Uncategorized by — aaron @ 5:10 pm

404 Error when to accessing /wp-admin/admin-ajax.php

When you receive this error:ForbiddenYou don’t have permission to access /wp-admin/admin-ajax.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

If you are receiving this error, then its likely you have mod_security installed on your server, and you will need to update your mod_security rules.

Find the following in your mod_security configuration:

Only accept request encodings we know how to handle
# we exclude GET requests from this because some(automated)
# clients supply "text/html" as Content-Type
SecFilterSelective REQUEST_METHOD "!^(GET|HEAD)$" chain
SecFilterSelective HTTP_Content-Type "!(^application/x-www-form-urlencoded$|^multipart/form-data;|^text/xml;)"

Change it to:

# Only accept request encodings we know how to handle
# we exclude GET requests from this because some (automated)
# clients supply “text/html” as Content-Type
SecFilterSelective REQUEST_METHOD “!^(GET|HEAD)$” chain
SecFilterSelective HTTP_Content-Type “!(^application/x-www-form-urlencoded;|^multipart/form-data;|^text/xml;)”

If you don’t have access to mod_security configuration (i.e. you are not the administrator of the server), then you can add the following to a .htaccess file for your site:

<IfModule mod_security.c>
SecFilterInheritance Off
</IfModule>

Filed under: Uncategorized by — aaron @ 4:56 pm

Server hung at ‘Probing PCI hardware bus (00)’

Error: Probing PCI hardware bus (00), server hung at this message, while booting.

The problem can be fixed by adding the kernel flag ‘pci=nommconf’ in the kernel command line in the grub.

1) Reboot the server.

2) At the grub boot screen, select the kernel and press ‘e’ to edit the entry.

3) Select the kernel command line and press ‘e’ to edit the entry, which looks like

kernel /vmlinuz-x.x.x-x.x ro root=/dev/abc/ acpi=off

4) Add pci=nommconf at the end of the line, like

kernel /vmlinuz-x.x.x-x.x ro root=/dev/abc/ acpi=off pci=nommconf

5) Then press enter and press ‘b’ to boot.

Once the server reboots and comes online, edit the grub.conf and add ‘pci=nommconf’ in the default kernel’s kernel command line. (kernel /vmlinuz-x.x.x-x.x ro root=/dev/abc/ acpi=off pci=nommconf)

Filed under: Uncategorized by — aaron @ 2:53 pm

Lxadmin Documentation and Useful Info

Having recently starting offering Virtual Dedicated Servers, and offering Lxadmin for free on all our Virtual Dedicated Server plans – the following details may be useful:

What is Lxadmin?

“LxAdmin is the world’s lightest control panel, using lighttpd and djbdns and only consumes 9MB RSS and 15MB memory usage on bootup on the OpenVZ (or Xen) platform. Lxadmin allows you to run either lighttpd/apache or djbdns/bind and also provides graphical interface to switch between these programs on a live server, without losing any data. Lxadmin Enterprise can transparently move web/mail/dns from one server running apache to another running lighttpd, again transparently and without causing any downtime.”

Useful Links:

1. Login Url: http://demo.lxadmin.com:7778/

2. Default Login Details:
Username: admin
Password: admin

3. Lxadmin Documentation: http://doc.lxlabs.com/lxadmin/admin/

Lxadmin integrates with our VDS control panel, and you can easily access and manage your VDS along with Lxadmin.

Filed under: Uncategorized by — aaron @ 4:22 pm