General :: Block A Email Address From Logging Into Multiple Systems?

Jun 15, 2010

can we block email address in a way that a user cannot login into multiple systems simultaneously, so that if a user logs in into a system (with ip address if he tries to login to into another system at the same time(with ip address his previous system(i.e has to logout automatically. Is there any predefined scripts for this.

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Server :: Block Email From Certain Group To A Specific Email Address?

Apr 29, 2010

Is there a way of allowing only certain domain to send e-mails to certain specific e-mail address. I am using Sendmail, and I have an alias which translate to certain members of staff within my organization. I don't expect e-mails from outside our domain to be sent to this alias e-mail address.

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General :: Copy And Forward Email To Multiple Email Servers Using Postfix?

Dec 31, 2009

I have an email setup where all of the emails from our email host is downloaded to our Linux server using Fetchmail. Then some of the incoming emails are sent to an MS exchange server ( using Postfix. What i want to do is to send a copy of all emails to Another server ( for redundancy.Can postfix be configured to send copies out to both?

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General :: Can Switching File Systems Affect Email Backups And Other Data?

Nov 27, 2010

A while back I installed Dreamlinux 3.5 Gnome edition using ext2. When I attempted to use the email address books I imported from the Dreamlinux3.5 XFCE edition, which had been ext3, I discovered that none of the email addresses could be mailed to. I had to manually type in the addresses.

When I reinstalled Dreamlinux 3.5 Gnome using ext3, the same backup files that did not work in ext2 now work just fine. The question is, was this a "broken data" problem caused by the switch to ext2 file system or something else? Has anyone else experienced this?

The mail program is Thunderbird.

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General :: Block Email Spamming Coming From Server?

Jun 26, 2011

I don't know what to do, I know how to block and delete pretty much every other type of abuse. I run a server with 500+ shared hosting clients and reseller clients and it was just blocked because of email spam. I can keep on top of all other abuse (people trying to do dos attacks etc) but the one thing I can't get my head around is email spamming. how to stop people spamming emails from my server?

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General :: Block A Specific MAC Address?

Feb 5, 2011

how to block a specific MAC address

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General :: Block Mac Address On Squid?

May 25, 2010

how to block PC in Squid using Mac Address. I tried as in /etc/squid/squid. conf

acl block arp 00:13:45:d3: 24:e4
https_access deny block

but it give me error as like: - (This is the output of # squid -k parse) aclParseAclLine: Invalid ACL type 'arp' FATAL: Bungled squid.conf line 1234: acl block arp 00:13:45:d3: 24:e4 squid Cache (Version 2.5.STABLE6) : Terminated abnormally

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General :: Windows - Run Multiple Operating Systems On A Single Computer?

Mar 18, 2010

Possible Duplicates: Dual Booting Linux and Windows XP Booting Multiple Operating Systems I have a machine with Windows on it, and I would like to be able to reboot to Linux. I am certain this is possible. How can I achieve this?

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General :: Windows - Running Multiple Operating Systems On One Laptop

Apr 23, 2011

I am in the process of running some benchmark tests on a variety of RDBMS, I am testing three different client operating systems.Would it be terrible to partition the HDD and install Ubuntu, Windows 7 and Solaris 10? If I do not do this, I will likely have to re-install the O.S numerous times due to changes in the database server o.s as well. The same question goes for the server; would it drastically effect the performance to install 3 server o.s on one server?

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Server :: Allow Unsubscribed Email Address To Send Email To Mailman List?

Jul 1, 2010

is there a way to allow unsubscribed email address to send emails to mailman list without having to manually set a filter for that email address?

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Ubuntu :: Exim4 Copy All New Email To Another Email Address?

Jan 18, 2010

Is there a way to configure exim4 to bcc all new incoming emails to another email address? My boss wants a copy of all outgoing emails.

I know postfix can do this with a bcc_always option. Im sure exim4 should be able to also.

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Server :: Dropping All Email For Specific Email Address?

Jun 12, 2011

I have a user who was getting constantly spammed so I deleted their email account but it's still coming in and trying to get delivered, how do drop all email for a specific email address?

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General :: Having Server For All EMAIL ADDRESS?

Jun 14, 2011

Is there a way to control all email address in one server manage all email application software either win OS / MAC OS or Linux Distro. I have experience about email when the pc crashed i dont have any backup for their email data also email address.

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Server :: Routing Inbound Email To Multiple Email Servers?

Dec 21, 2009

I have recently setup a new mail server and have simulated sending and receiving on the new email server. The new email server will replace the primary one.I would like to setup the new email server in parallel with the existing one.This way i can observe issues that might occur and be aware of what could go wrong. I want to received mail to be delivered to both mail servers at the same time.I would like to use postfix, exim i find a bit to difficult to understand.I have thought of using transport maps, the only problem is that you can only forward mail to one server at a time using transport maps.I think recipient_bcc_maps and sender_bcc_maps could work, i would just like ideas of how i can do this.

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General :: Sendmail Masquerading Email From Address?

Jul 18, 2010

I have my system set up with sendmail (going through my ISP SMTP server) but when I sent an email using sendmail it was defaulting the from address to or something similar. So I read up about masquerading [URL] and managed to get it to however I want to change USERNAME to a different value because my ISP username is different from my machine username. My aim is just to get the from address to be [URL]. This machine is only used by me so I don't need it to be different for different users if that makes things any easier...?

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Software :: Spam / Virus Block - Unblock Email With Attachment .zip Should Be All Attachment Through To Email?

Jul 5, 2011

how to unblock email with attachment .zip should be all attachment through to my email i have below message when people sent me email to my domain

Warning: This message has had one or more attachments removed
Warning: (the entire message).
Warning: Please read the "Apex-Attachment-Warning.txt" attachment(s) for more information.

This is a message from the MailScanner E-Mail Virus Protection Service The original e-mail message contained potentially dangerous content, which has been removed for your safety. The content is dangerous as it is often used to spread viruses or to gain personal or confidential information from you, such as passwords or credit card numbers.

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Software :: Web-based Email For Multiple Email Accounts?

Apr 11, 2010

I was wondering if there's some web-based email application (like Zimbra) or perhaps gmail can do it I'm not sure that can handle both receiving and sending of mail from multiple email accounts.I have about 4 different email accounts with various different domains and would like to have one platform which has an inbox for each account and from which I can send mail from any of the accounts

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General :: Authorized Email Address - Sendmail Server?

May 4, 2010

I am having many mails transferred through my Sendmail server,but I want to configure only authorised email address through our server.optimize my mail server's configuration.

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General :: One Mail Address To Multi Email Accounts

Mar 16, 2011

i have a linux box at work that was configed by some that has left the company. we have an email add: e.g, if you enter that mail add to a new email it then sends the mail to several email accounts the are on the server.i would like to remove and add new users onto that email address, is there anyone out there that can help?

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General :: Using Hotmail Type In The Email Address But The Curser Will Not Appear?

Jun 15, 2010

when usihg hot mail i can type in the e mail address but the curser will not appear in the reply section After switching from Google to Yahoo the problem was solved.

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Server :: Sending Email - Leave Management Systems In PHP

Jun 29, 2011

Our mailing systems was working in web mail and we had a tool wherein if we apply leave mails where sent to web mail. Now we have moved to exchange server and we want the mails to be sent to exchange server. The Leave Management systems is developed in PHP with Mysql the platform used is linux.

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General :: Multiple Interfaces To One IP Address?

May 30, 2010

At present, I have:

a Netgear router with DHCP off at my computer

eth0 at
wlan0 at

The wlan0 interface always connects to the router, while the eth0 interface connects to other computers with crossover and acts as a dnsmasq DHCP server for network boot and installation.

If I use the Gnome NetworkManager to enable both connections, that is, with wlan0 connected to the router/internet and eth0 to another computer, both as, I cannot access the internet while eth0 is connected.

Why is this? How can I configure my computer to follow wlan0 for Internet usage, but use eth0 for itself (the latter is working but blocking wlan0).

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CentOS 5 Networking :: Change A Systems Hostname And IP Address Via Script?

Dec 14, 2010

I am looking for a way via script to change a systems hostname and IP address!

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Fedora Installation :: How To Install Multiple Systems

May 8, 2010

so I get my t410 today. the hdd is 250g with three primary partitions: 1) 1.17g 2) 221g win7os and 3) recovery 9.7g. I plan to install a windows vista, opensuse 11.2 and fedora 12. I know first to shrink the partition to make room. but i still don't know exactly. say, i shrink win7os partition to 40g and create an extended partition of 221-40 =181g, and then add partiton /boot, /swap, /home, /... and a number of partitons for vista and a number of similar partitions for fedora. But I doubt I wouldn't be able to install vista when opensuse installation is done.

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Fedora Installation :: Way To Get Multiple Operating Systems

Nov 22, 2010

I installed Fedora 14 in a dual boot with Windows 7 (Win 7 came preinstalled on my Vaio, I freed up 30 GB on a hard disk drive and installed Fedora in it).The first reboot took me straight to Windows. I could not find a way to get multiple Operating systems, so I tried looking on the net a bit, and installed EasyBCD. This gave me the option of choosing the boot up OS. But when I choose Fedora in the options, the screen changes to GRUB4DOS which lists Fedora and Other as my two boot options.Selecting either one of these options results in Error 22 No partition found.

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Ubuntu :: Booting With Multiple Operating Systems?

Jan 13, 2010

I have both windows XP home and Ubuntu 9.10 installed on my computer. I started with Ubuntu 8.04 (i think that was the number) and it has updated a few times since then. You see the thing is that when I choose an operating system at the boot up, it lists all of the updates to ubuntu. so there are like 12 options to choose from besides windows XP and Ubuntu 9.10.

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Ubuntu Networking :: Ipaddress Of Systems \ Ip Address Is Given Manuallyto Connect Each For Lan Connection?

Mar 15, 2011

In my working environment have 40 system .Its ip address is given manuallyto connect each for lan connection .40 are not using ubuntu while other using windows .My question is there any package to trace ips of entire system

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Security :: Can A Firewall Block Unencrypted Email Attachments From Being Sent

Dec 9, 2010

I manage a linux-based network, where some projects are currently under development. Our IT policy states that any email attachment shall be encrypted using GPG. Can I block other attachments using a firewall?

Note: Currently our mail server is not in campus. So I can only use a firewall for this security issue.

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Server :: Permanently Block Access To Email From Japan?

Oct 30, 2010

I run my own home server using OpenSuse 11.1, everything is setup using apache, php, etc etc, and it all works perfect, but now I need to use my own email server for the use of Dolphin social networking software, so that when someone registers, the email server sends out registration confirmation emails, so I set up postfix, yeah right!!!, even though I followed all instructions to set postfix as a closed relay, a test done at mxtoolbox site still said it was an open relay, but while I was trying to set up postfix, my access to the server slowed down, and my servers drive light was constantly active,,, so when I look at the mail queue, I saw 4000+ emails, all from japan, (, so I promptly shut down postfix and use postsuper -d ALL in the command console to delete the queue, but no matter how I try, I couldn't configure postfix as a closed relay,,, so I uninstalled it and installed sendmail, and using webmin, I could use a spam list and block the domain, now, sendmail's test at mxtools show as a closed relay, I can't even send out a test email using smtp auth, but disabling auth, I can, but now my IP is blocked at spam cop, and spamhaus,,, gmail server say my IP is not authorized to send to their servers, but to use my ISP relay instead,,, but my ISP doesn't have a relay,,hence the need to run my own email server.

My home server uses double layer firewall, a hardware firewall between the internet and the server, and a software firewall on the server, and I only allow the ports I need, IE, 80 = http, 443 = https, 20/21 = ftp, 25 = smtp, 110 = pop3. and that's all, but any other internal access from my workstation to the server, using ssh, I only open the ports on the server firewall. If someone here has a great deal of knowledge on sendmail, and can set up a an M4 ( config file for me, it would be much appreciated. What I would like my email server to do, is to only allow the sending of emails from inside it's own server system,, ie, when a php script sends an email to the server, then the email server would let it through, but anything else, outside the local network is ignored.

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Server :: Block Email Sending And Receiving Using Squid

Jun 17, 2010

i am using centos 5.4, running squid for proxy, i want to block email sending and receiving of proxy users to secure my data. how is it possible that the proxy user can only brows websites but he can not receive or open and send or save as draft to mail box.

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