Mirror has many drives. Periodically, they may fail. Most disk drive manufacturers have lengthy warranties - Seagate does 5 years always, and on the WD drives we have, the warranty period is also at least 5 years. In case of failure, here's the process by which we can get a drive manufacturer to replace a failed drive that is still under warranty.

=== Western Digital ===

* Go to http://support.wdc.com/warranty/
* Click on "WD Support Portal" under "End Users"
* Now you have to log in: the login should be in /home/sysadmin/passwords/wd-rma on [[Machine_List#aspartame|aspartame]]
* Click on "New RMA"
* Enter the serial number from the back of the drive and click "Check" (if you have multiple drives to RMA, enter all serial numbers at the same time)
* If your drive is under warranty it will let you proceed to the next step
* System should ask you a few other questions for each drive including "when did you buy it" (guess) and "reason for RMA" (be brief but accurate; examples include "disk marked BAD by MegaRAID controller" or "fails SMART test with unrecoverable read errors")
* Now submit your RMA, it should ask for address information
* You will be sent a label and an address along with packaging information
* From this point, you have 30 days to get the package to the destination address through a traceable carrier
* The packaging information is really important as your RMA will not go through if you don't package it properly
* Go to the FedEx office in the plaza, ask a clerk to help you with "a return merchandise order that must be packaged in a very specific way"
* Follow the packaging directions to get your drive or drives packaged correctly. Highlights: put the drive in an anti static bag; use some bubble wrap and cardboard filler inside the box; write the RMA number on EVERY SURFACE of the box; tape the RMA barcode somewhere on top of the box where it will not be covered; insist that the FedEx shipping labels not cover your barcode and RMA numbers
* The destination address will be for an RMA premailer somewhere in Canada, so ask for ground domestic shipping; do not get the priority service (just say "there's no hurry for it to get there")
* Your total should be about $35 (this includes packaging and shipment)
* You should receive replacement drives within a few days

2012-03-14T02:18:42Z

Pbarfuss: Bring page contents up-to-date with reality. :P

Mail services are currently handled by [[Machine_List#caffeine|caffeine]].

== Reading your mail ==

You can use any user agent that supports maildir locally (mutt, alpine, etc), and any client that supports POP3 or IMAP either locally or remotely. We also have webmail.

Here are the details:

* maildir
** Location: $HOME/.maildir/

* [[Webmail]]
** URL: https://mail.csclub.uwaterloo.ca/

* POP3
** Hostname: mail.csclub.uwaterloo.ca
** Port: 110 (POP3), 995 (POP3S)
** POP3 is considered deprecated. We would like to get rid of it someday, so please don't use it unless no other alternatives exist for you.

* IMAP
** Hostname: mail.csclub.uwaterloo.ca
** Port: 143 (IMAP), 993 (IMAPS)

* SMTP
** Hostname: mail.csclub.uwaterloo.ca
** SSL encryption and authentication required
** Port: 25, 465, or 587

== Technical Details ==

=== Mail Transfer (Incoming) ===

[http://www.postfix.org/ Postfix] is our MTA and runs on caffeine. Incoming mail is received inbound on smtp/25 or ssmtp/465 and goes through a sequence of filters before being delivered to users.

We are using the following filters for incoming mail, to combat spam and malware:

* zen.spamhaus.org RBL
* Greylisting with postgrey

These filters reject truckloads of spam, preventing them from reaching your inbox. Greylisting adds a delay to mail delivery from unknown servers, but after a small number of successes they will be auto-whitelisted. If that isn't good enough, ask systems-committee@csclub.uwaterloo.ca to whitelist all mail to your address.

=== Mail Delivery ===

User mail is delivered, by default, to procmail. This is configurable by adding a comma-separated list of destinations in $HOME/.forward. See aliases(5) for more details.

Procmail, in turn, writes mail to $HOME/.maildir unless instructed otherwise. You can customize procmail by editing $HOME/.procmailrc. See procmailrc(5) for more details.

==== Failures ====

If you are out of quota or another error occurs writing to your home directory, procmail will deliver your message to /var/mail/$USER on the mail server. If that too fails, caffeine is probably on fire. The message will be returned to the queue where it will eventually bounce.

=== Mail Retrieval ===

We run [http://www.dovecot.org Dovecot], a POP3 and IMAP server. It reads messages from $HOME/.maildir, so if you have procmail deliver your mail elsewhere you will be unable to retrieve your mail using POP3 or IMAP.

=== Mail Submission (Outgoing) ===

On caffeine, outgoing mail is submitted directly to Postfix via the sendmail(1) wrapper or on submission/587. Submitted mail is then queued for delivery to its destination. The other systems have no MTA and instead run sSMTP, which relays mail through caffeine immediately without any queue or daemon.

[[Category:Software]]

Serial Connections

2011-07-19T22:56:49Z

Pbarfuss:

This article documents the physical serial ports on each machine and the connections between them. These connections are used for console access using [[Conserver]].

==== MC 3015 ====

corn-syrup ttyS1 LOM <- corn-syrup-ipmi - 57600
mirror ttyS1 LOM <- sodium-benzoate-ipmi - 57600
taurine ttyS1 LOM <- taurine-ilo - 115200
glomag ttyS0 LOM <- glomag-ipmi - 115200
denardo ttyS0 LOM <- denardo-alom - 9600
ascorbic-acid ttyS0 LOM <- denardo ttyS0 9600
binaerpilot ttyUSB0 <- ascorbic-acid ttyUSB0 115200
goto80 ttyS0 <- corn-syrup hub1 115200
goto80 ttyS1 <- corn-syrup hub2 115200
goto80 power <- corn-syrup hub3 115200
potassium-citrate ttyS0 <- corn-syrup hub4 115200
kvm - <- corn-syrup hub5 115200
electrons - <- corn-syrup hub8 9600

The "hubN" ports are on the 8-port serial hub. To access, look in /dev/csc.

== Machine Ports ==

Most machines either have no serial ports, or one [[Serial_Pin-outs#RS-232_over_DE-9|DE-9]] serial port. Details of other configurations are listed here. We do not have any modems (DCE), so all connections should be crossed (i.e., use null modem cables or compatible).

==== taurine ====

taurine has a virtual serial port that can be accessed via telnet or SSH

ttyS0 physical DE-9
ttyS1 virtual

==== ascorbic-acid ====

ascorbic-acid has two [[Serial_Pin-outs#RS-232_over_8P8C_.28Sun.29|Sun 8P8C]] serial ports stacked vertically, with the first port on top. The first port may be used to access LOM, and probably has to be set to 9600 baud.

A (ttyS0, LOM)
B (ttyS1)

These ports should be connected to another system's DE-9 using a DE-9<->8P8C modular adapter and an [[Serial_Pin-outs#Almost_Rollover_Cable|Almost Rollover]] or standard rollover.

==== potassium-citrate ====

potassium-citrate has two DE-9 serial ports side by side, with the second port on the left

101102 (ttyS1) 101101 (ttyS0)

==== sodium-citrate ====

sodium-citrate has two DE-9 serial ports side by side, with the second port on the left

ttyS1 ttyS0

==== dumbterm ====

dumbterm has one DB-25 serial port. It is currently connected to a black [[Serial_Pin-outs#Grey_DB-25_Female_to_8P8C_Adapter|nonstandard DB-25<->8P8C adapter]], to a [[Serial_Pin-outs#Dumbterm_Cable|special twisted pair cable]], to a [[Serial_Pin-outs#Black_DE-9_Female_to_8P8C_Adapter|nonstandard 8P8C<->DE-9 adapter]]. All of these pieces are labeled "dumbterm". The dumbterm cable is not symmetric; the end labeled "DE-9" must be plugged into the DE-9 adapter.

[[Category:Hardware]]

Serial Connections

2011-07-19T22:54:06Z

Pbarfuss:

This article documents the physical serial ports on each machine and the connections between them. These connections are used for console access using [[Conserver]].

==== MC 3015 ====

corn-syrup ttyS1 LOM <- corn-syrup-ipmi - 57600
mirror ttyS1 LOM <- sodium-benzoate-ipmi - 57600
taurine ttyS1 LOM <- taurine-ilo - 115200
glomag ttyS0 LOM <- glomag-ipmi - 115200
denardo ttyS0 LOM <- denardo-alom - 9600
ascorbic-acid ttyS0 LOM <- denardo ttyS0 9600
goto80 ttyS0 <- corn-syrup hub1 115200
goto80 ttyS1 <- corn-syrup hub2 115200
goto80 power <- corn-syrup hub3 115200
potassium-citrate ttyS0 <- corn-syrup hub4 115200
kvm - <- corn-syrup hub5 115200
electrons - <- corn-syrup hub8 9600

The "hubN" ports are on the 8-port serial hub. To access, look in /dev/csc.

== Machine Ports ==

Most machines either have no serial ports, or one [[Serial_Pin-outs#RS-232_over_DE-9|DE-9]] serial port. Details of other configurations are listed here. We do not have any modems (DCE), so all connections should be crossed (i.e., use null modem cables or compatible).

==== taurine ====

taurine has a virtual serial port that can be accessed via telnet or SSH

ttyS0 physical DE-9
ttyS1 virtual

==== ascorbic-acid ====

ascorbic-acid has two [[Serial_Pin-outs#RS-232_over_8P8C_.28Sun.29|Sun 8P8C]] serial ports stacked vertically, with the first port on top. The first port may be used to access LOM, and probably has to be set to 9600 baud.

A (ttyS0, LOM)
B (ttyS1)

These ports should be connected to another system's DE-9 using a DE-9<->8P8C modular adapter and an [[Serial_Pin-outs#Almost_Rollover_Cable|Almost Rollover]] or standard rollover.

==== potassium-citrate ====

potassium-citrate has two DE-9 serial ports side by side, with the second port on the left

101102 (ttyS1) 101101 (ttyS0)

==== sodium-citrate ====

sodium-citrate has two DE-9 serial ports side by side, with the second port on the left

ttyS1 ttyS0

==== dumbterm ====

dumbterm has one DB-25 serial port. It is currently connected to a black [[Serial_Pin-outs#Grey_DB-25_Female_to_8P8C_Adapter|nonstandard DB-25<->8P8C adapter]], to a [[Serial_Pin-outs#Dumbterm_Cable|special twisted pair cable]], to a [[Serial_Pin-outs#Black_DE-9_Female_to_8P8C_Adapter|nonstandard 8P8C<->DE-9 adapter]]. All of these pieces are labeled "dumbterm". The dumbterm cable is not symmetric; the end labeled "DE-9" must be plugged into the DE-9 adapter.

[[Category:Hardware]]