Sendmail Blackhole List – Eliminate Most Spam
To configure sendmail to automatically bounce most spam use one of the countless blackhole lists that are readily available, and consistently maintained: http://www.declude.com/Articles.asp?ID=97 An excellent blackhole list is maintained by njabl.org. Use is relatively straight forward. Add the following line to the end of your sendmail.mc file, then recompile the sendmail configuration file.
FEATURE(dnsbl,`combined.njabl.org',`Message from $&{client_addr} rejected - see http://njabl.org/lookup?$&{client_addr}')
For more detailed information on how to use this blackhole list you can visit their website directly: http://njabl.org/use.html I used to get well over 150 spam messages per day. Now I maybe get 5 total 
No comments yet.
No trackbacks yet.
Android Blackbook Pro – Full Support & New Features
June 30, 2010 - 10:17 am
Tags: auto responder, Blackbook, client, code cleanup, high priority, list, menu, New, photo support, sms client
Posted in Android, MMS, pro, sms | No comments
Blackbook now supports two themes in the SMS client (Bubbles and Stock). You can toggle the them via the menu option (nice and easy). I fixed a couple of bugs last night, and completely removed the kill pill that is in the BETA version. The pro version will receive all updates from now on. There [...]
Android – Process Manager
June 9, 2010 - 10:15 am
Tags: apache mysql, app, encrypted login, incoming connections, initial states, Manager, root, Sendmail, shell script, virtualbox
Posted in Android, Manager, lsof, process | No comments
My next project will be Process Manager. Using lsof I will be scanning various ports to see if a particular process is listening for incoming connections. I am in the initial states of controlling the processes, but the algorithms are complete to read if the processes are running. Currently the app scans for Apache, Mysql, [...]
Ubuntu Flash
April 12, 2010 - 1:42 pm
Tags: animations, bit, flash, gnash, older versions, open source versions, sudo, swfdec, ubuntu, use
Posted in flash, nonfree, plugin, ubuntu | No comments
To install flash in Ubuntu use: sudo apt-get install flashplugin-nonfree This works on Ubuntu 32bit and 64bit. Flash is slightly unreliable on 64bit Ubuntu, but it works nonetheless. You can also install two open source versions of flash that have limited to good support. Gnash supports most older versions of swf animations, and newer versions [...]
Sendmail – Critical to Receive System Alerts
February 10, 2010 - 9:02 am
Tags: default sendmail, email, external mail server, forward works, local ip, mail, relay mail, Sendmail, System, user
Posted in .forward, Sendmail, access, alert, aliases, home, user | No comments
Image via Wikipedia The core of Linux is designed to mail, at minimum, the root user of various system alerts. With sendmail installed these alerts are mailed to the respective user directory. If you have an external mail server you can configure your local user mail to be forwarded to any email address. The easiest [...]
Sendmail – Crontab and Email Updates
February 8, 2010 - 9:11 am
Tags: annoyance, cronjob, email, email address, external ip address, invaluable feature, mail, mail aliases, Press, Sendmail
Posted in Uncategorized | No comments
Cron automatically sends out email to the job’s runner a report of the issued cronjob. This can either be an excellent and invaluable feature or an annoyance. To stop the emails from coming add this to the end of any particular cronjob: >/dev/null 2>&1 Without the above line the email will be delivered to the [...]
Lock Down IP Addresses – SSH and Else
January 26, 2010 - 12:07 pm
Tags: 192, ALL, everything, hosts, ip addresses, machine, sshd, use
Posted in Server, deny, ip, rule, ssh | No comments
If you know the IP addresses that will be connecting to your machine, lock them down. Use the hosts.allow file as follows. sshd : localhost : allow sshd : 192.168.3. : allow sshd : 192.168.1. : allow sshd : ALL : deny Using sshd : ALL : deny and listing various allow rules blocks everything [...]
Server Side Spam Filter – Sendmail – Dovecot – Procmail
December 6, 2009 - 11:43 pm
Tags: file, gnu nano, graphical application, home mail, mail, mail directory, mailer, procmail, random system, Sendmail, swap
Posted in Server, filter, procmail, spam | No comments
I tried for a long time to get sieve to work with sendmail. I could not get it to work. I would try and create a custom .m4 mailer, as per the sieve pages on the dovecot website, but nothing would work. Ultimately I gave up and used client side mail filtering built into Thunderbird. [...]
Using vi, or nano – Terminal Text Editors
December 6, 2009 - 9:40 am
Tags: command mode, graphical editors, graphical text editor, grub, mode, nano, Press, text, unix and linux, use, vi, wq
Posted in command, nano, terminal, text, vi | 1 comment
Vi was the original terminal based text editor created for Unix. It is as small and as simple as it gets. The binary resides within the Unix and Linux bins, and can easily be placed on a removable media for ultimate emergency portability. There are three modes to vi: 1. command mode 2. ex mode [...]
Terminal Standard Output – Slowwwww Down
December 5, 2009 - 12:50 pm
Tags: grep, nvidia, nvidia drivers, page, space bar, use, way
Posted in less, output, standard, terminal | No comments
Have you ever hit an ls and it prints way to much? Have you ever hit a ps and its prints way too much? There are several things you can do. You can pipe it to a grep filter. If your search a downloads folder for NVIDIA drivers do: ls | grep NVIDIA You can [...]
Dovecot – Sieve, I Can’t Get Filtering to Work
December 1, 2009 - 9:44 am
Tags: A, Dovecot, external ip address, HdrFromSMTP, mail, mail folders, mail server, Mdovecot, new mail, p, R, root partition, Sendmail, Server, sieve, T, X-Unix
Posted in Dovecot, Sendmail, filter, sieve | No comments
Maybe someone will help me. A rare thing to ask, but I cannot get sieve to work on my server. The plugin page, on the dovecot website, appears rather simple. http://wiki.dovecot.org/LDA/Sieve Install dovecot, then activate the sieve plugin. Here is what happens. I setup sendmail to use dovecot’s deliver and mail is no longer being [...]
