italiansoda's questions

Hi Server Fault Community,

I have 2 nodes in my dell c6100 that are not POSTing, it's the top two nodes (1 & 3). The bottom 2 DO turn on (2 & 4). I need some help identifying which part I might need to replace.

My initial thought is that I need to replace the top power distribution board. Dell c6100 Power Distribution Board YJ9Y6

Here are my BMC Sensor Logs. You can see that a handful of the sensors are unavailable.

Dead node

Working node

The working nodes have their green power light LEDs in the rear illuminated. The dead nodes do not have any color light on the LED - they don't illuminate.

The working nodes have their green power light indication illuminated on the front panel (the power switch), but the dead nodes do nothing when you press their power switches - no illumination, no POST or video output.

All node's ethernet ports illuminate and work, which is why I am able to remote into the BMC and grab the sensor logs.

When I try to power on a dead node via BMC, I get this error message,

"Please check The feature connector cables".

I don't know what that means, do any of you?

Thanks for your help and suggestions!

EDIT - 6/6/2017

I have purchased replacement power distribution boards (top and bottom) from e-bay and swapped out the newer parts. I screwed down the new boards, reconnected all the cables, and booted up the server. This did not fix the problem. I should have done some basic diagnostics before buying the replacement part.

After the part replacement not yielding a positive result, I took the working node and slid it out the back and swapped its placement for the dead node right above. The known working node still worked, so that told me the problem with the dead node lies on the system board itself and not in any of the server parts powering that position.

Trying to get authentication on my mail server (ubuntu 10.04) running but am having trouble. I have a server with postfix for smtp setup, imap server with courier setup. My postfix authentication is using cyrus (I haven't tried dovecot really) saslauth. The user name and password is stored in a MySql database. Logging in with imap-ssl works on a remote client (thunderbird), and I can read my mail. I can't get the SMTP side working, and have focused the issue down to saslauth.

Testing with

testsaslauthd -u 'username' -p 'passowrd' -s smtp 

returns

connect() : Permission denied

the password in the database is encrypted and I guess this testsaslauthd will take a plain text password and encrypt it.

Looking for someone to walk me through getting this working. Im new to the mail server, and have never got one fully working. Thanks. Ask me which log files I should look at/post, which tests to run, permissions to check.

Edit: (3/26/2012) for more information I can't get any mail client to work, they give errors like

The message could not be sent because connecting to SMTP server <mydomain.com> failed. The server may be unavailable or is refusing SMTP connections

I have respective ports open on iptables, but i am guessing that it is an internal problem because of the test I ran above. I have also run telnet to mail.mydomain.com 25 and run ehlo localhost and get this in return

250-mail.domain.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

EDIT: (3/28/2012 2:45pm)

~$ postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
broken_sasl_auth_clients = yes
config_directory = /etc/postfix
inet_interfaces = all
inet_protocols = all
mailbox_size_limit = 0
mime_header_checks = regexp:/etc/postfix/mime_header_checks
mydestination = mail.mydomain.co, localhost, localhost.localdomain
myhostname = mail.mydomain.co
mynetworks = 127.0.0.0/8
myorigin = /etc/mailname
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $virtual_mailbox_limit_maps
readme_directory = no
recipient_delimiter = +
relayhost =
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = yes
smtpd_tls_cert_file = /etc/ssl/certs/mailcert.pem
smtpd_tls_key_file = $smtpd_tls_cert_file
smtpd_tls_session_cache_timeout = 3600s
smtpd_use_tls = yes
virtual_alias_domains =
virtual_alias_maps = proxy:mysql:/etc/postfix/mysql-forwards.cf, mysql:/etc/postfix/mysql-email.cf
virtual_gid_maps = static:5000
virtual_mailbox_base = /home/vmail
virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-domains.cf
virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-mailboxes.cf
virtual_uid_maps = static:5000

EDIT: Solved (3/29/2012) Thanks to both @AveryPane and @malloc4k for pointing me in the right direction. A few things I had to do, make sure that my MX records were in proper order. I used the tool intodns.com and also http://www.mxtoolbox.com for checking whether my server was accepting connections. Then using tail -f I watched my logs for any errors, was excited to see that there was actually something being logged once I got my DNS records straightened out, and tweaked some config files.

Two things that I didn't know about one of which was some ISPs block port 25, which might have been in my case why thunderbird wasn't seeing my server on port 25. Second in the file /etc/postfix/master.cf there are settings about which ports to allow postfix to listen on. The default port 25 is there the line

smtp      inet  n       -       -       -       -       smtpd

which basically says hi im postfix, I run on port 25. If you want to run postfix on another port, 587 which is popular for mail servers, add this line near there in master.cf

587      inet  n       -       -       -       -       smtpd

run a restart /etc/init.d/postfix restart and you should be set. That was the solution for me.