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Re: [CentOS] Sendmail Configuration Problem - 550 5.1.1 - User unknown Problem
by Wang, Mary Y 03 May '10

03 May '10

It's working now. I just commented out some of the FEATURE lines in sendmail.mc file. Mary _____________________________________________ From: Wang, Mary Y Sent: Saturday, May 01, 2010 6:21 PM To: 'centos(a)centos.org' Subject: Sendmail Configuration Problem - 550 5.1.1 - User unknown Problem Hi, I'm having this Sendmail configuration problem and stuck. I've been doing googling/reading posts and none of the solutions matched my problem. I'm doing some testing, and have been getting this 550 5.1.1 ....User unknown error when I send the email to my company's email address. When I send it to an external email address, such as yahoo, the message delivered successfully. Of course, I'm doing the configuration behind a firewall. I'm using a relay too, and I did declare the relay host in 'SMART_HOST' in the sendmail.mc file and have also recompiled it to produce the sendmail.cf. I also restarted the sendmail service. ---------------------------------------------------------------------------------------------------------------------------------------------------- telnet ana.boeing.com 25 Trying 134.51.151.114... Connected to ana.boeing.com (134.51.151.114). Escape character is '^]'. 220 ana.boeing.com ESMTP Sendmail 8.12.11.20060308/8.12.11; Sat, 1 May 2010 16:39:06 -0700 helo ana.boeing.com 250 ana.boeing.com Hello ana.boeing.com [134.51.151.114], pleased to meet you mail from:root@ana.boeing.com 250 2.1.0 root(a)ana.boeing.com... Sender ok rcpt to:mary.y.wang@boeing.com 550 5.1.1 mary.y.wang(a)boeing.com... User unknown Any ideas? I'm running on Sendmail 8.12.11 Mary

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DNSSEC
by m.roth＠5-cent.us 02 May '10

02 May '10

Well, folks, There's an article on slashdot, <http://tech.slashdot.org/article.pl?sid=10/04/30/1258234> Excerpt: ...the coming milestone of May 5, at 17:00 UTC at this time DNSSEC will be rolled out across all 13 root servers. Some Internet users, especially those inside corporations and behind smaller ISPs, may experience intermittent problems. The reason is that some older networking equipment is pre-configured to block any reply to a DNS request that exceeds 512 bytes in size. DNSSEC replies are typically four times as large. --- end excerpt --- I followed the link from the story to <https://www.dns-oarc.net/oarc/services/replysizetest>, a coordinating organization, and tried their test (as root): dig +short rs.dns-oarc.net txt And see that where I work, we're not ready. Is anyone following this, and/or have a HOWTO on enabling it for CentOS? mark (need to check this at home, too)

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boot Debian on a RouterStation Pro
by Jozsi Vadkan 02 May '10

02 May '10

Can anyone post a howto/doc, help about booting a Debian on a RouterStation Pro?:\ https://forum.openwrt.org/viewtopic.php?pid=108415#p108415 I still didn't manage to boot from it. Or any other "normal distro" :\ Thank you.. p.s.: a little more detailed howto:\

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Sendmail Configuration Problem - 550 5.1.1 - User unknown Problem
by Wang, Mary Y 02 May '10

02 May '10

Hi, I'm having this Sendmail configuration problem and stuck. I've been doing googling/reading posts and none of the solutions matched my problem. I'm doing some testing, and have been getting this 550 5.1.1 ....User unknown error when I send the email to my company's email address. When I send it to an external email address, such as yahoo, the message delivered successfully. Of course, I'm doing the configuration behind a firewall. I'm using a relay too, and I did declare the relay host in 'SMART_HOST' in the sendmail.mc file and have also recompiled it to produce the sendmail.cf. I also restarted the sendmail service. ---------------------------------------------------------------------------------------------------------------------------------------------------- telnet ana.boeing.com 25 Trying 134.51.151.114... Connected to ana.boeing.com (134.51.151.114). Escape character is '^]'. 220 ana.boeing.com ESMTP Sendmail 8.12.11.20060308/8.12.11; Sat, 1 May 2010 16:39:06 -0700 helo ana.boeing.com 250 ana.boeing.com Hello ana.boeing.com [134.51.151.114], pleased to meet you mail from:root@ana.boeing.com 250 2.1.0 root(a)ana.boeing.com... Sender ok rcpt to:mary.y.wang@boeing.com 550 5.1.1 mary.y.wang(a)boeing.com... User unknown Any ideas? I'm running on Sendmail 8.12.11 Mary

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32-bit boot CD for 64-bit install using kickstart
by Carlos S 02 May '10

02 May '10

Hi, I am using kickstart method for CentOS installation. The install is done using mirror site URL and not CD/DVD ISOs. However, the system is initially booted from 32-bit CentOS CD. When the install process starts I get errors as: - package rpm not found - abort/continue? - package lvm2 not found - abort/continue? - package grub not found - abort/continue? - ... - ... If I change install URL to 32-bit ISOs then everything works fine. Do I need to use 64-bit boot CD for this install? -- CS.

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Do you provide Sendmail help?
by Wang, Mary Y 02 May '10

02 May '10

Hi, Not sure if I'm on the right list. Do you provide Sendmail configuration help? Thanks Mary

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I need some help joining data from 3 MySQL tables, please
by Rudi Ahlers 01 May '10

01 May '10

Hi all, I am trying to display collective data from 3 MySQL tables: The query I have, so far, is SELECT c . * , COUNT( m.id ) AS `members` FROM `jos_mls_teams` AS `c` LEFT JOIN `jos_mls_teams_members` AS `m` ON m.teamid = c.id RIGHT JOIN ( SELECT u.name, u.lastvisitDate FROM `jos_users` AS `u` ) ON u.id = m.userid GROUP BY c.id LIMIT 0 , 30 But get the following error: #1248 - Every derived table must have its own alias A google search results suggested the alias should be put after the bracket. So, I change the code as follow, and move the *AS `u`* outside the right bracket: SELECT c . * , COUNT( m.id ) AS `members` FROM `jos_mls_teams` AS `c` LEFT JOIN `jos_mls_teams_members` AS `m` ON m.teamid = c.id RIGHT JOIN ( SELECT u.name, u.lastvisitDate FROM `jos_users` ) AS `u` ON u.id = m.userid GROUP BY c.id LIMIT 0 , 30 But then I get the error: #1054 - Unknown column 'u.name' in 'field list' Basically, I need to display all the data from the "*jos_mls_teams", total number of members linked to a user from the *"jos_mls_teams_members" (basically counting all the rows where the corresponding user's id is in the userid field. Then I want to display that same corresponding user's name & email from another table. Table structures to follow: CREATE TABLE `jos_mls_teams` ( `id` int(11) NOT NULL auto_increment, `userid` int(5) NOT NULL, `memberid` int(11) NOT NULL, `name` varchar(255) NOT NULL default '', `email` text, `area` text, `arealeader` varchar(150) NOT NULL, `founded` text, `herder` varchar(100) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=19 ; CREATE TABLE IF NOT EXISTS `jos_users` ( `id` int(11) NOT NULL auto_increment, `name` varchar(255) NOT NULL default '', `username` varchar(150) NOT NULL default '', `email` varchar(100) NOT NULL default '', `password` varchar(100) NOT NULL default '', `usertype` varchar(25) NOT NULL default '', `block` tinyint(4) NOT NULL default '0', `sendEmail` tinyint(4) default '0', `gid` tinyint(3) unsigned NOT NULL default '1', `registerDate` datetime NOT NULL default '0000-00-00 00:00:00', `lastvisitDate` datetime NOT NULL default '0000-00-00 00:00:00', `activation` varchar(100) NOT NULL default '', `params` text NOT NULL, PRIMARY KEY (`id`), KEY `usertype` (`usertype`), KEY `idx_name` (`name`), KEY `gid_block` (`gid`,`block`), KEY `username` (`username`), KEY `email` (`email`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=73 ; CREATE TABLE IF NOT EXISTS `jos_mls_teams_members` ( `id` int(11) NOT NULL auto_increment, `teamid` int(11) NOT NULL default '0', `userid` int(11) NOT NULL default '0', `leader` tinyint(1) NOT NULL default '0', `sysid` int(11) NOT NULL, `memberid` int(11) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=29 P.S. just to be clear, I want to eventually remove the name & email fields from the `jos_mls_teams` table, since Joomla uses the `jos_users` table for registration purposes and it's easier to use the built-in registration than trying to reinvent the wheel :) -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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how to build a centos kernel?
by Robert P. J. Day 01 May '10

01 May '10

a couple folks on the local mailing list were asking about the mechanics of building a kernel for a centos system, and they seemed to suggest that there were some intricacies involved as opposed to other distros. i've never tried it -- is there a trick or something? got a pointer to the canonical web page that has the directions? thanks. rday -- ======================================================================== Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Kernel Pedantry. Web page: http://crashcourse.ca Twitter: http://twitter.com/rpjday ========================================================================

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Request for rss feeds
by john maclean 01 May '10

01 May '10

Who would be the right person(s) to ask for rss feeds on the main centos website? -- John Maclean 07739 171 531 MSc (DIC) Enterprise Linux Systems Engineer

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CentOS 5.4 off-center on SuperMicro console
by Rudi Ahlers 30 Apr '10

30 Apr '10

I have a weird situation with a new installation of CentOS 5.4 x64, on a SuperMicro X7SBI server. The server has a <a href=" http://www.supermicro.com/products/motherboard/Xeon3000/3210/X7SBi.cfm" target="_new">SuperMicro X7SBi motherboard</a>, board ATI ES1000 and Core2Quad Q9505 CPU. The kernel is When I login to the console, using a "17 CRT monitor (haven't tested others), the screen is off-center to the right. This happens as soon as the boot loaders gets to: "waiting for driver initialization" Below are asome photos to show what happens. http://blog.softdux.com//everything-todo-with-linux/centos-5-4-off-center-o… http://blog.softdux.com//everything-todo-with-linux/centos-5-4-off-center-o… http://blog.softdux.com//everything-todo-with-linux/centos-5-4-off-center-o… Other Linux distro's, including Fedora Core 11, FC 12, Ubuntu 9.10 and OpenFiler 2.3 works fine though. The only thing I can think of is the video driver, but I don't have X installed, so it can't be that. And I've reinstalled CentOS 3 times already thinking I did something wrong with the installation. It's not the monitor, since I have another CentOS 5.4 server, running on an Intel motherboard that looks normal with this setup. They're connected to the same monitor via a KVM switch. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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