Linux & Windows | Security and Solutions

Exim Commands : Searching the queue with exiqgrep

November 28, 2015 Ashish Kale Mail Server

Searching the queue with exiqgrep

In this article I am explaining the command usages for finding emails in Exim mail queue for particular sender or receiver.

Exim includes a utility that is quite nice for grepping through the queue, called exiqgrep. Learn it. Know it. Live it. If you’re not using this, and if you’re not familiar with the various flags it uses, you’re probably doing things the hard way, like piping `exim -bp` into awk, grep, cut, or `wc -l`. Don’t make life harder than it already is.

First, various flags that control what messages are matched. These can be combined to come up with a very particular search.

1) Use -f ( To search the queue for messages from a specific sender )

Command :

root@localhost# exiqgrep -f [luser]@domain

2) Use -r ( To search the queue for messages for a specific recipient/domain )

Command :

root@localhost# exiqgrep -r [luser]@domain

3) Use -o ( To print messages older than the specified number of seconds. For example, messages older than 1 day )

Command :

root@localhost# exiqgrep -o 86400 […]

4) Use -y ( To print messages that are younger than the specified number of seconds. For example, messages less than an hour old )

Command :

root@localhost# exiqgrep -y 3600 […]

5) Use -s ( To match the size of a message with a regex. For example, 700-799 bytes )

Command :

root@localhost# exiqgrep -s ‘^7..$’ […]

“^3$” –> 3bytes
“^3.$” –> 3-30bytes
“^3..$” –> 3-300bytes
“^3…$” –> 3-3000bytes
And so on..

6) Use -z ( To match only frozen messages )

7) Use -x ( To match only unfrozen messages )

There are also a few flags that control the display of the output.

8) Use -i ( To print just the message-id as a result of one of the above two searches )

Command :

root@localhost# exiqgrep -i [ -r | -f ] …

9) Use -c ( To print a count of messages matching one of the above searches )

Command :

root@localhost# exiqgrep -c …

10) Print just the message-id of the entire queue

Command :

root@localhost# exiqgrep -i

That’s it 🙂 🙂

Exim related post

Useful Exim Commands

Leave a comment Exim Commands, Mail Server

Useful Exim Commands

November 26, 2015 Ashish Kale Commands

Exim is a message transfer agent (MTA) for hosts that are highly comfortable and running in Unix or Linux Operating system. Exim server is developed at the University of Cambridge. We can easily manage and configure in server. In this article i will explain few executable commands as below.

1) Print a count of the messages in the queue, use the following command line :

root@localhost# exim -bpc

2) Print a listing of the messages in the queue (time queued, size, message-id, sender, recipient), use the following command line :

root@localhost# exim -bp

3) Print a summary of messages in the queue (count, volume, oldest, newest, domain, and totals), use the following command line :

root@localhost# exim -bp | exiqsumm

4) Print what Exim is doing right now, use the following command line :

root@localhost# exiwhat

5) Test how exim will route a given address, use the following command line :

root@localhost# exim -bt test@ownmyserver.com
user@thishost.com
<– test@ownmyserver.com
router = localuser, transport = local_delivery
root@localhost# exim -bt user@thishost.com
user@thishost.com
router = localuser, transport = local_delivery
root@localhost# exim -bt user@remotehost.com
router = lookuphost, transport = remote_smtp
host mail.remotehost.com [1.2.3.4] MX=0

6) Run a pretend SMTP transaction from the command line, as if it were coming from the given IP address. This will display Exim’s checks, ACLs, and filters as they are applied. The message will NOT actually be delivered, use the following command line :

root@localhost# exim -bh 192.168.11.22

7) Display all of Exim’s configuration settings, use the following command line :

root@localhost# exim -bP

2 comments Exim Commands, few executable commands, Helpful Exim Commands, The Exim command line, Useful Exim Commands

How to Sign-up & Verify Your Domain Name with StartSSL

November 24, 2015 Ashish Kale How to, StartSSL, StartSSL Certificate, Website

In this article we will show you how to Sign-up and Verify Your Domain Name with StartSSL.

To Sign-up With StartSSL

Step 1 : Launch a web browser and navigate to the StartSSL Control Panel.

Step 2 : If this is your first time requesting a certificate from StartSSL, click on the Sign-up button.

If you have already requested a certificate from StartSSL, log into your account.

Step 3 : Skip to the next section.

Step 4 : Provide the requested information

Step 5 : Click on the Continue button.

Step 6 : A verification code will be sent to the email address provided.

Step 7 : Then, log into your email account and provide the verification code.

Step 8 : Then click on the Continue button.

Once your email address has been verified.

Step 9 : Then, choose to generate a high grade private key.

( This private key and certificate pair will be used to identify you to StartSSL.)

Note : If you ever loose it, you will be unable to regain access to your account, make sure to backup this certificate and private key.

Step 9 : Then click on the Install button.

Step 10 : Click on the Finish button.

You should now be logged into your StartSSL account.

To Verify Your Domain Name with StartSSL

After installing or logged into your StartSSL account to verify Your Domain Name with StartSSL. Follow the Step to verify Your Domain Name.

Step 1 : In your StartSSL account, click on the Validations Wizard button.

Step 2 : Select Domain Name Validation.

Step 3 : Click on the Continue button.

Step 4 : Enter your domain name.

Step 5 : Click on the Continue button.

Step 6 : Then choose an email address @ your domain that you access.

Step 7 : Click on the Continue button.

Step 8 : A verification code should be sent to the email address selected.

Step 9 : Then, access your email account and provide the verification code

Step 10 : Click on the Continue button.

Your domain has now been verified.

Step 11 : Click Finish button.

That’s it!

Leave a comment How to, Sign-up, StartSSL, Verify Domain Name

How to Create a StartSSL Certificate on StartSSL Control Panel

November 20, 2015 Ashish Kale How to, StartSSL Certificate, Website

To Create a StartSSL Certificate

In this article I will give you how you can easily Create a StartSSL Certificate on StartSSL Control Panel. Follow the steps and create a StartSSL Certificate.

Step 1 : Login to the StartSSL Control Panel.

Step 2 : Select the Validations Wizard tab.

Step 3 : Select Domain Name.

Step 4 : Click on Continue button.

Step 5 : Then enter the top domain name, and select the domain name extension.

Step 6 : Click on Continue button.

Step 7 : Select the email address for verification of domain name.

Step 8 : Click on Continue button.

Step 9 : Then enter the verification code you received by mail into the the field.

Step 10 : Click on Finish button.

Step 11 : Select the Certificates Wizard tab.

Step 12 : Select SSL/TLS Server Certificate.

Step 13 : Click on Continue button.

Step 14 : Then enter a password ( at least 10 characters ).

Step 15 : Click on Continue button.

Step 16 : Save the private key.

Step 17 : Click on Continue button.

Step 18 : Select the domain name from the drop-down box.

Step 19 : Click on Continue button.

Step 20 : Then add a sub domain name.

Step 21 : Click on Continue button.

Step 22 : Save the certificate

Step 23 : Click on Finish button.

Step 24 : Select the Tool Box tab.

Step 25 : Click on Decrypt Private Key.

Step 26 : Then enter the content of the private key and supply the password.

Step 27 : And finally Save the decrypted private key.

That’s it!

Leave a comment Create a StartSSL certificate, How to, WHM

How to import StartCom CA into Vista

November 18, 2015 Ashish Kale How to, Installation, Installation, Website

To Import StartCom CA into Vista

In this Article I will explain how to import StartCom CA into Vista. Please follow the instruction and import StartCom CA.

Step 1 : Using IE click on the appropriate certificate.

Step 2 : You can download the cert and double click on it.

Step 3 : In the security warning box, click on Open button.

Step 4 : Click on Install Certificate button.

Step 5 : You will see Certificate Import Wizad windo, Click on Next button.

Step 6 : Then, Choose the radio button for Place all certificates in the following store.

Step 7 : Then click on Browse.

Step 8 : Select the certificate store you wont to use, Choose Trusted Root Certification Authorities.

Step 9 : Then click on OK button.

Step 10 : Click on Next button.

Step 11 : Then, click on Finish button.

Step 12 : There might be a warning, which you should approve.

That’s it!

How to Install SSL Certificate in Microsoft IIS 7

November 18, 2015 Ashish Kale How to, Installation, Installation, Website

To install the primary SSL certificate, you must complete the pending request, and then bind the certificate to your website, Please follow the steps and Install an Certificate in Microsoft IIS 7.

Step 1: Click Start.

Step 2: Then click Run.

Step 3: Type mmc.

Step 4: Then click OK.

The Microsoft Management Console (Console) window opens.

Step 5: Click the File menu, in the Console1 window, and Select Add/Remove Snap-in.

Step 6: Select Certificates, in the Add or Remove Snap-in window, and click Add.

Step 7: Select Computer Account, in the Certificates snap-in window, and then click Next.

Step 8: Select Local Computer, in the Select Computer window, and then click Finish.

Step 9: Click OK.

Step 10: In the Console1 window, click + to expand the folder.

Step 11: Right-click Intermediate Certification Authorities, mouse-over All Tasks.

Step 12: Then click Import.

Step 13: In the Certificate Import Wizard window, click Next.

Step 14: Click Browse to find the intermediate certificate file.

Step 15: Change the file extension filter to PKCS #7 Certificates (*.spc;*.p7b), select the *_iis_intermediates.p7b file

Step 16: Then click Open.

Note : Do not install your Leaf Certificate in this area. Doing so removes your certificate from the list, and you must reinstall to correct the problem.

Step 17: Click Next, in the Certificate Import Wizard window.

Step 18: Select Place all certificates in the following store.

Step 19: Then click Browse.

Step 20: In the Select Certificate Store window, select Intermediate Certification Authorities, and then click OK.

Step 21: In the Certificate Import Wizard window, click Next.

Step 22: Click Finish.

Step 23: Click OK.

Step 24: Close the Console 1 window.

Step 25: Then click No to remove the console settings.

That’s it!

How to create a cPanel account within WHM

November 17, 2015 Ashish Kale cPanel/WHM, How to, Website

To create a cPanel account within WHM

If you want to resell your own hosting accounts, Please follow the step by step and create a cPanel account.

Step 1: Log into your WHM.

Step 2: Click on the Account Functions.

Step 3: Click Create a New Account.

Step 4: Fill in the details for the new account.

(i) Domain Information

1. Enter the main domain name on the account.

2. Set a cPanel username and password.

3. Then enter the email address to be associated with the account.

(ii) Package

WHM allows you to create packages, which make it easier to manage cPanel accounts.

1. Package you could set limits such as the number of addon domains to associate to the account.

2. If you are just starting out, you probably don’t have any packages configured.

3. In this case, check “Select Options Manually”.

4. Set those limitations now.

(iii) Settings

1. Choose the cPanel theme to assign the user.

2. Select the appropriate language for the user.

(iv) Reseller Settings

The Reseller Settings section only handles making the cPanel account a reseller. Actual reseller settings are set elsewhere in WHM.

1. If you have the access to create a cPanel account, it means that you have reseller permissions.

2. Decide here if this new account you’re creating should have WHM access and be able to create accounts themselves.

(v) DNS Settings

The DNS Settings only apply if this server is going to be hosting DNS for this cPanel account.

1. Decide how the domain’s nameservers should be configured on the server.

2. If the nameservers specified for this domain name are going to be on another server.

3. Choose the option “Use the nameservers specified at the Domain’s Regsitrar”.

(vi) Mail Routing Settings

Mail Routing Settings only allows you to choose one item from a list.

1. Automatically Detect Configuration :

If this is chosen, the mailserver will be configured using the current DNS setting. You should not use this setting if you are planning to host mail for the domain on this same server. Otherwise, when you go to point DNS for the domain to this server, the mailserver will be configured as if mail were still being hosted at the old server. This will cause it to reject mail until the mailserver is configured properly.

2. Local Mail Exchanger :

If you are planning on using this account for the domain’s email, then it is a good idea to check Local Mail Exchanger. This will completely avoid the problems that can occur when the configuration is automatically detected.

3. Backup Mail Exchanger :

It is only useful if you have multiple servers, and wish this cPanel account to be a backup for an account on another server. In case the mail server goes down on the other server, this mailserver will receive and hold mail for delivery until the other mailserver is brought back up.

4. Remote Mail Exchanger :

The mailserver to pass any mail for the domain that comes its way to the correct mailserver. Only check this if this server will never host e-mail for this domain.

Step 5: After you have filled in all of the details above, click the “Create” button.

Congratulations, you have just created a new cPanel account!

If you are unable to create the account, and you believe that you have set everything properly, do not hesitate to contact Hostripples Support Center at the contact information below.

Leave a comment Cpanel, create a cPanel account, How to, WHM

How to install SOGo on Ubuntu

November 10, 2015 Ashish Kale How to, Installation, Installation, Ubuntu, Ubuntu, Website

SOGo is an open source collaborative software server with a focus on simplicity and scalability. It is developed in Objective-C using PostgreSQL, Ubuntu, Apache, and IMAP. It supports CalDAV, CardDAV, GroupDAV, iMIP and iTIP and reuses existing IMAP, SMTP and database servers. In addition, SOGo offers native Microsoft Outlook compatibility using the Open Change backend.

We’ll see how to install this fantastic suite in an Ubuntu 12.04Lts Server Edition. Please follow the instruction.

* If you’re using Ubuntu Trusty Tahr (14.04)

Step 1 : From terminal prompt:

/etc/apt/sources.list

Step 2 : Add the following line to your apt source list

deb http://inverse.ca/ubuntu trusty trusty

Step 3 : When you prefer using the nightly builds, then simply use the following line:

deb http://inverse.ca/ubuntu-nightly trusty trusty

* If you’re using Ubuntu Precise Pangolin (12.04)

Step 1 : From terminal prompt:

/etc/apt/sources.list

Step 2 : Add the following line to your apt source list

deb http://inverse.ca/ubuntu precise precise

Step 3 : When you prefer using the nightly builds, then simply use the following line:

deb http://inverse.ca/ubuntu-nightly precise precise

* If you’re using Ubuntu Lucid Lynx (10.04)

Step 1 : From terminal prompt:

/etc/apt/sources.list

Step 2 : Add the following line to your apt source list

deb http://inverse.ca/ubuntu lucid main

Step 3 : When you prefer using the nightly builds, then simply use the following line:

deb http://inverse.ca/ubuntu-nightly lucid main

For SOGo v3, simply add the “-v3” suffix to the http source path.

Signed builds

Since 2011-05-17

To verify their signature, our GPG public key has to be added into apt keyring.

Run the following commands:

sudo apt-key adv –keyserver keys.gnupg.net –recv-key 0x810273C4

Then, update your lists of available software packages

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install sogo

From that point, apt-get should not complain about package signatures anymore.

That’s!!

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How to install R1soft cdp agent on the Linux server

October 30, 2015 Ashish Kale How to, Installation, Linux, Website

To install R1soft cdp agent on the Linux server

R1Soft is an affordable, easy-to-use, high performance backup, restore, and disaster recovery software. Its a software application which is used to backup the data in a client (R1Soft agent) which is assigned to R1Soft server based upon the configurations which we define. R1soft can also be used to restore files and databases. You can install the Latest R1soft cdp agent on Linux server by using following steps.

Step No. 1 : Create the yum repository for the r1soft by using the following command

/etc/yum.repos.d/r1soft.repo
[r1soft]
name=R1Soft Repository Server
baseurl=http://repo.r1soft.com/yum/stable/\$basearch/
enabled=1
gpgcheck=0

Step No. 2 : Install the cdp agent by using following command line

yum install r1soft-cdp-enterprise-agent

Step No. 3 : Then, install the header kernels by using following command line

yum install kernel-devel

Step No. 4 : Obtain the kernel module from R1Soft by using following command line

r1soft-setup –get-module

Step No. 5 : To Setup the authentication key for the Agent on client server

serverbackup-setup –get-key http://cdpserverip

Kernel module is now installed.

Now, Use the following command line and load the new driver.

/etc/init.d/cdp-agent restart

That’s it!

Leave a comment authenticate cdp-agent, CDP Agent, How to, Installation, installing cdp-agent, kernel module cdp-agent, Linux server, R1soft

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