localhost vpopmail[4626]: vchkpw-smtp: vpopmail user not found mail@domain.com:99.99.99.99

I dont know why it threat different, I mean qmailrocks must be know this bug.
To Fix this out try to do something with chmod on file vchkvw.

# chmod ug+s /home/vpopmail/bin/vchkpw
and now it can work (login user@domain + password)

Does this work with you ?

RBLSMTPD is a generic tool to block mail from RBL-listed sites. You can use it as your filter on qmail-smtpd against spammers.

exec /usr/local/bin/softlimit -m 40000000   /usr/local/bin/tcpserver -H -v -R -l 0 -x /etc/tcp.smtp.cdb -c “$MAXSMTPD” -u “$QMAILDUID” -g “$NOFILESGID” 0 smtp rblsmtpd -r bl.spamcop.net  /var/qmail/bin/qmail-smtpd mail.domainnameyahoo.info /home/vpopmail/bin/vchkpw /usr/bin/true 2>&1

rblsmtpd is trying to confirm to site ( -r bl.spamcop.net and other listed here ) that the ip address is clean or marked as spam. But unfortunately some service such as barracuda, spamhaus is not free.
I try to apply free version some of rblsmtp service like barracuda and spamhaus but seems they doesnt work and make my qmail-smtpd is not responding to port 25.

So, I figure it out that there is a ‘business’ inside of rblsmtp service company or organization. Find out your self for it.
That’s why I am now configuring for a new rblsmtpd service hosted on my server.
I will share it when I’ve done it. Meanwhile you can download the package here : rbldnsd_0996btar.gz

Many VPS (Virtual Private Server) is using Kloxo as Control Panel.
Kloxo is a full package of server modules, one of them is FTP . You cannot change the server configuration on Kloxo admin Control Panel. By default Kloxo is using pureftp as ftp server and xinetd as daemon to start the ftp service. You need SSH account with root access. Here is detail how to do :

• Login to your vps by using root access on ssh (port 22).
• Your pureftp configuration is in /etc/xinetd.d/pureftp, edit this file using text editor such vi or vim, this time I use vi as text editor. By default it will looks like :
  service ftp

{
disable = no
socket_type     = stream
wait            = no
user            = root
server          = /usr/sbin/pure-ftpd
server_args     = -A -c5000 -C8 -D -fftp  -H -I15 -lpuredb:/etc/pure-ftpd/pureftpd.pdb -lunix -L2000:8 -m4 -s -p30000:50000 -U133:022 -u100 -Oclf:/var/log/kloxo/pureftpd.log -g/var/run/pure-ftpd.pid -k99 -Z -Y 1
groups          = yes
flags           = REUSE
}

• At first line “service ftp” change to “service pureftp”

• save the file and exit vi.

• Now edit /etc/services and look for these line
  ftp             21/tcp
  ftp             21/udp          fsp fspd

• copy these line and add 2 more lines as below
  pureftp         20021/tcp
  pureftp         20021/udp               fsp fspd
  ftp             21/tcp
  ftp             21/udp          fsp fspd

• save the file and exit.
• Restart xinetd
  # service xinetd restart

Check all of listen port :

[root@vps xinetd.d]# netstat -an | grep LISTEN

There is no more listen on port 21 but you will find on port 20021

tcp        0      0 0.0.0.0:20021               0.0.0.0:*                   LISTEN
Test it by using your ftp client and don’t forget using port 20021.

Still confuse ? add comment below, let me know your problem.

Linux localhost 2.6.31.5-server-1mnb #1 SMP Fri Oct 23 03:13:55 EDT 2009 i686 Intel(R) Core(TM) i5 CPU         750  @ 2.67GHz GNU/Linux

Everything was installed correctly, qmail has been installed as instructed in Life with Qmail and using netqmail-1.06
And also installed vpopmail-5.4.25 , courier-imap-4.8.0 and courier-authlib-0.62.4 with the same version as my previous mail server. But suddenly one little problem is came. I couldnt login through imap port (port 143) Courier-authlib unable authenticate with vpopmail library, I figure it out by/var/log/mail/info.log

Jun 15 05:47:30 localhost authdaemond: modules=”authvchkpw”, daemons=5
Jun 15 05:47:30 localhost authdaemond: Installing libauthvchkpw
Jun 15 05:47:30 localhost authdaemond: file not found

I have look around all over the google search engine, read all email archives, all forums, but found nothing and the problem is still there. And even I reinstalled everything again, starting from formatting my harddrive and start over installer qmail and its friend vpopmail and courier. This time I did it very very very carefully. But problem still exists. I pulled my hair off my head because of it.

This is rediculous , is it a bug or something ?

Finally, I learn something from the log. It is saying that  the authdaemond is failed to start initializing libauthvchkpw because its file is not exists. Yeah, I look over the source code again, it is not there.

Well, I did it with my own way. I copied manually the files into courier-authlib library folder.

/usr/local/lib/courier-authlib/libauthvchkpw.a
/usr/local/lib/courier-authlib/libauthvchkpw.la
/usr/local/lib/courier-authlib/libauthvchkpw.so
/usr/local/lib/courier-authlib/libauthvchkpw.so.0
/usr/local/lib/courier-authlib/libauthvchkpw.so.0.0.0

It is now working. Now I can authenticate my self through imap port.
Problem with Courier-authlib and vpopmail is now [SOLVED] and now I save the rest of my hair.
Here is I put this libauthvchkpw files in my server, you may download it here. But it is on your own risk.

A : .bin file is a binary self-extracting file. It contain an installer application with in number of files inside. To execute this .bin file just add an execute permission  on it.

# chmod +x vzinstall-linux.bin
# ./vzinstall-linux.bin

Q : Can I edit this .bin file ?

A : As Far As I Know, .bin file is  encoded into hexadecimal and only readable by machine. Try to find hex editor, if you understand any hex code but becarefully you may damage the fileit self and the program will not work.

In order to do that you need a package called “dvd+rw-tools”

Debian installation:
# apt-get install ‘dvd+rw-tools’

Fedora Core Linux installation:
# yum install ‘dvd+rw-tools’

RedHat Enterprise Linux installation:
# up2date ‘dvd+rw-tools’

Mandriva Linux installation:
# urpmi ‘dvd+rw-tools’

After dvd+rw-tools package already installed, growisofs is the way to burn into DVD.
Here is a short description abaout growisofs from its man page.

DESCRIPTION

       growisofs was originally designed as a frontend to mkisofs to facilitate appending of data to ISO9660 volumes residing on random-access media such as DVD+RW, DVD-RAM, plain files, hard disk partitions. In the course of development general purpose  DVD  recording  support was  implemented,  and  as of now growisofs supports not only random-access media, but even mastering of multisession DVD media such as DVD+R and DVD-R/-RW, as well as Blu-ray Disc. In addition growisofs supports first-/single-session recording of arbitrary  pre-mastered image (formatted as UDF, ISO9660 or any other file system, if formatted at all) to all supported DVD media types.
growisofs in Mandriva Linux distribution has been patched to prefer genisoimage over mkisofs. You can override this behavior by exporting MKISOFS environment variable.

Next Step :
To create the ISO image
# mkisofs -r -o /tmp/disk1.iso /var/www/html

Now write the ISO onto the DVD:
# growisofs -Z /dev/dvd=/tmp/disk1.iso

To append more data for same DVD:
# growisofs -M /dev/dvd /tmp/file.1

To format (erase) a DVD:
# dvd+rw-format -force /dev/dvd
or
# dvd+rw-format -force=full /dev/dvd

To display dvd drive and disk information using dvd+rw-mediainfo command:
# dvd+rw-mediainfo /dev/dvd

Yes, Microsoft has chosen to hide to button. I don’t know what is the purpose behind it.
It is actually very simple.
When you shutting down (Click “Start” -> “Turn Off Computer”) you will sea a same screen as below.

While you are in that screen, use “shift” key and watch the screen especially “Standby” button. It will turned into “Hibernate” button and function like another hibernate button as Windows XP Professional.

But, in order the button to work. You must turn on “enable hibernation” on Power Setttings Property.

How To enable hibernation” on Power Setttings Property ?

Go to control panel and choose Power Options.
On Power Options Properties, Choose Tab “Hibernate” and just tick “enable Hibernate”.

Now, you have a magic hibernate button. Congratulation !!.

Q: How ca I know the listed Mx record for certain domain ?
A: Use dig command from your bash shell.

; <<>> DiG 9.3.2 <<>> google.com mx
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53180
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 4, ADDITIONAL: 0

;; QUESTION SECTION:
;google.com.                    IN      MX

;; ANSWER SECTION:
google.com.             900     IN      MX      100 google.com.s9a1.psmtp.com.
google.com.             900     IN      MX      200 google.com.s9a2.psmtp.com.
google.com.             900     IN      MX      300 google.com.s9b1.psmtp.com.
google.com.             900     IN      MX      400 google.com.s9b2.psmtp.com.

;; AUTHORITY SECTION:
google.com.             171042  IN      NS      ns2.google.com.
google.com.             171042  IN      NS      ns3.google.com.
google.com.             171042  IN      NS      ns4.google.com.
google.com.             171042  IN      NS      ns1.google.com.

;; Query time: 22 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 25 11:23:19 2010
;; MSG SIZE  rcvd: 234

From the above, you can see there are 4 MX records runningon google.com domain.

The Qmail log is showing

” Sorry,_I_wasn’t_able_to_establish_an_SMTP_connection”

So, we guess that qmail is not trying to connect to another mx record listed on

[…]
When the lookup succeeds, the mapping can result in a list of alternative delivery addresses rather than a single address, because of multiple MX records, multi-homing, or both. To provide reliable mail transmission, the SMTP client MUST be able to try (and retry) each of the relevant addresses in this list in order, until a delivery attempt succeeds. […]”

To Fix : use qmail/patch-qmail-1.03-rfc2821.diff you need to recompile your qmail once again, if you forget the option of ./configure  alternatively you may edit /var/qmail/control/smtproutes and route it to working mail
with format mx.domainnameyahoo.info:backupmx.domainnameyahoo.info

# crontab -e
/bin/sh: /bin/vi: No such file or directory
crontab: “/bin/vi” exited with status 127

After googling for a while, Here is the answer.

# export EDITOR=/usr/bin/vim

To make the command automatically executed when you logged in as root.

edit /root/.bash_profile  and add the line at the bottom

RAID, Redundant Array of Inexpensive (Independent) Disks, is a system consisting of several hard drive / drives. Simply put, we usually have a number of partitions in a hard disk. Now, with the RAID, then we are one of several hard disk partitions.

RAID 0
Also known as stripping off. Requires a minimum of 2 drives. The system is the ability to combine multi drive. Thus, it is logical only “seen” a big hard drive with capacity (the amount of total capacity hard drive).

At first, RAID 0, using a partition that is larger than some hard drive to form an effective cost.

For example:

We have a partition of 500GB. The price of a 100GB hard drive size is 500.000, - while the price of a 500GB hard drive size is 5.000.000, -. Well, we can create a 500GB partition Markowitz size of 5 units large 100GB hard disk using RAID-0. It is clear that this scenario is more expensive because of cheaper costs: 5 x Rp.500.000, - = Rp.2.500.000, -. Cheaper than a 500GB hard drive size to purchase. That is why at first called Redundant Array of Inexpensive disks.

Another example:

At the current size of the largest hard drive available on the market is 500GB, while a division of 2TB. Well, we can buy 4 units with a capacity of 500GB hard disk and put it in RAID-0, so that a partition can have without having to berkururan 2TB hard drive with so much capacity available in the market to watch.

Written data on the disk drive is divided into fragments. Where fragments are spread across the disk. So, if one hard disk physical damage suffered, so data can not be read into.

But there are benefits to the existence of these fragments: speed. Information can be obtained much faster with RAID-0, because when the computer reads a fragment of a disk, the computer can also read the other pieces in the other drive.

RAID-1
Usually called View. Requires a minimum of 2 drives. The system of the contents of a hard drive to another hard disk with an aim to copy, if a hard drive is physically damaged, then the information will remain available from other hard drive.

Example:

A server has 2 hard drive with a capacity of 80 GB and each RAID 1 set. After a few years, one of the hard drive has suffered physical damage. However, other data on the hard drive can still be read, so the data can be stored, while still not physically damaged hard drives all at once.

RAID-2
RAID-2, with a stripping system. However, added three hard drives pariti Hamming, so the data is more reliable. Therefore, the number of hard drives require a minimum of 5 (n 3, n> 1). Third last disc used for the Hamming code to save from the calculation of each of bits that exist in other hard disk.

Example:

We have 5 hard drives (hard drive call it A, B, C, D and E) of the same size, each 40GB. If we set the four hard drives with RAID-2, the power is obtained: 2 x 40 GB = 80GB (of hard drive A and B). While hard drives C, D and E are not used for data storage, but only information pariti Hamming two other hard drives: A and B store When physical damage to one of the main hard drive (A or B), then The data may still be read with consideration of existing pariti Hamming code on my hard disk C, D and E.

RAID-3
RAID-3, with a stripping system. Also use an extra hard drive for reliability, but only to a hard drive for parity again .. Therefore, the number of hard drives require a minimum of 3 (n 1, n> 1). Last hard drive used to the equality of the calculation of each of bits that exist in other hard disk storage.

Case in point:

We have 4 hard drives (hard drive call it A, B, C and D) with the same size, each 40GB. If we set the four hard drives with RAID-3, the capacity is obtained: 3 x 40 GB = 120GB. While the disk D is not used for data storage, but only to store information parity of the other three hard drives: A, B and C. When there is physical harm to one of the main hard drive (A, B or C), the data can still be read by taking into account the existing parity in the disk D. But if the damaged disk D, so that data can still be read on three different hard drive.

RAID-4
Similar to RAID-3 system, but with the parity block from each disk, not a bit. Minimum required hard disk is the same, 3 (n 1, n> 1).

RAID 5
RAID 5 is basically the same as RAID-4, but with pariti spread. Namely, with a special hard drive for storing paritinya but paritinya be distributed to the entire hard drive. Minimum required hard disk is the same, 3 (n 1, n> 1).

This is done to access the speed and avoid bottleneck that occurs because the disk access is not focused on the collection of hard drives that contain information only.

RAID-6
In general, the increase of RAID-5, namely with the addition of parity into 2 (p + q). Thus the minimum number of hard drives is 4 (n 2, n> 1). With the addition of this secondary pariti, the damage to the two hard drives at the same time can still be tolerated. For example, if a damaged disk, hard disk during the exchange process occurs more damage in one of the other hard drive, then it can still be tolerated, and no damage to data collection system on the hard disk RAID 6.