By default configured to accept connection from local system (127.0.0.1). This should avoid open mail relay problem.
To allow connections from ALL hosts/LAN IPs open sendmail.mc file (login as the root):
# vi /etc/mail/sendmail.mc
Look for line that read as follows:
Comment or remove above line and insert new line that read as follows:
Above line will force to accept connection from any host. Save the file. Regenerate sendmail configuration file using m4:
# m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
If this command is resulting by giving such of error as below, this means that the file
/etc/mail/sendmail.mc:10: m4: cannot open `/usr/share/sendmail-cf/m4/cf.m4': No such file or directory
Then, this means that the sendmail.cf.xx rpm package is missing and require to be installed.
In my case, I had to mount the cdrom, and look for this rpm file:
Restart sendmail service :
# /etc/init.d/sendmail restart
Having dynamic IP addressing from your Internet Provider (ISP) could give you some trouble; especially when you need to remotely accessing machines;
I had to write a little script that regulary based checks my external IP; And if it change then sending to me an email.
Schedule it into your crontab and you are done.
Below, the script :
Continue reading “External IP change notification”
I have been struggling a little, on the configuration steps until I figured that these steps could be done remotely from a Windows Machine.
I have been taken Centos 5.7 x64 and Domino 8.5.1 and Windows Machine. (Windows)
An additional machine is needed to install the Lotus Notes Administrator in order to configure and setup the Domino Server remotely and manage it later on.
Let start by installing the Domino server on the Linux machine; Before starting to install you do need to prepare the platform.
Continue reading “Domino Server installation on Linux (Centos or Redhat)”
This post is about using a VPN client to connect and let your internal Network Machine to use it.
Continue reading “VPN through your internal Proxy”
From your ubuntu machine, even a desktop machine run this command from a terminal window:
Continue reading “Install a squid proxy on ubuntu in 5 minutes”
Here’s how to change your Mac hostname with the command line and make it permanent:
scutil –-set HostName new_hostname
You can also set a temporary hostname change by using the following command:
sudo hostname new_hostname
Enable SSH access on the Netfilter from the console.
Log into the Netfiler Http interface.
Continue reading “Enable SSH on Net Appliance Ontap”
Had a recent issue on Win7, could not install the service pack 1 due to this dll which was missing.
I used the sfc /scannow at least 3 times and finally this dll has been restored; Unfortunately all the originals files from the system were also restored.
Having on this machine customized the Welcome message and some others….however I have been able to apply the sp.
Having already the Sourceforge as repository source on your system. You directly run
Continue reading “Howto: Install Squidclamav”
First, you need to add the Sourceforge as repository, look at the article here.
Continue reading “Howto: Install clam Antivirus on Centos”