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Top Forums Shell Programming and Scripting Want to automate some DNS checks Post 302972893 by pica on Wednesday 11th of May 2016 11:15:24 AM
Old 05-11-2016
Quote:
Originally Posted by joeyg
Probably next steps would be to experiment with what is returned from the dig commands.

For instance, save the return message to a variable.
Then, see if it contains or does not contain an important message.
Finally, based on the "if" statement you just did, you could display either
OK -- full return message here
*ERROR* - unknown ___ -- full return message here

Experiment a little with this.
I know when I was a Sys Admin (long ago), I had many scripts that would run and alert me when an error. In my case, the script would email me when something was wrong.
I get what you're saying now. Sorry for being dense. You're saying that I'd do an "if" statement to process the output, presumably after validating it in some way. It would either succeed or fail. Then I need to have the script tell me what is broken if there's a problem.

I like the idea of it doing some sort of validation and then emailing or otherwise notifying me if there's a problem. I'm not sure what a problem would be I guess an invalid spf record but I'm not yet sure how to check for that.

Last edited by pica; 05-11-2016 at 12:46 PM..
 

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qmail-log(5)							File Formats Manual						      qmail-log(5)

NAME
qmail-log - the qmail activity record DESCRIPTION
qmail-send prints a series of lines describing its activities. Each possible line is described below. STATUS
status: local l/L remote r/R ... qmail-send is waiting for l local deliveries and r remote deliveries. The concurrency limits are L and R. status: exiting qmail-send is done. FATAL PROBLEMS
alert: cannot start: ... qmail-send is unable to prepare itself for delivering messages; it is giving up. This normally indicates a serious configuration error, but it can be caused by a temporary lack of resources. alert: oh no! lost ... One of the other daemons has died. qmail-send will exit as soon as possible. SERIOUS PROBLEMS
alert: unable to append to bounce message... qmail-send is unable to record a permanent failure, usually because the disk is full. This is a very serious problem; qmail-send cannot proceed without recording the results. It will try again in ten seconds. alert: out of memory... qmail-send tried to allocate more memory and failed. It will try again in ten seconds. alert: unable to opendir... qmail-send is having trouble reading a file list from disk, usually because the system's file descriptor table is full, but possibly because permissions are set incorrectly. It will try again in ten seconds. alert: unable to switch back... qmail-send was sent SIGHUP, and it is unable to reenter the queue directory. This is a very serious problem; qmail-send cannot pro- ceed outside the queue directory. It will try again in ten seconds. alert: unable to reread... qmail-send was sent SIGHUP, but it is unable to read the new controls. It will continue operating with the original controls. MESSAGES
new msg m qmail-send is going to preprocess a queued message. The message number, m, is its disk inode number. After a message is removed from the queue, its number can be reused immediately. info msg m: bytes b from <s> qp q uid u Message m contains b bytes; its envelope sender is s; it was queued by a user with user ID u. q is a long-term queue identifier, the process ID of the qmail-queue that queued the message. bounce msg m qp q Message m had some delivery failures. The long-term queue identifier of the bounce (or double-bounce) message is q. triple bounce: discarding ... Message m had some delivery failures, but it is already a double-bounce message, so it must be thrown away. Triple-bounce messages do not exist. end msg m qmail-send is about to remove message m from the queue. DELIVERIES
starting delivery d: msg m to ... qmail-send is telling qmail-lspawn or qmail-rspawn to deliver message m to one recipient. The delivery number, d, starts at 1 and increases by 1 for each new delivery. delivery d: success: ... Delivery d was successful. delivery d: failure: ... Delivery d failed permanently. The message will bounce. delivery d: deferral: ... Delivery d failed temporarily. This recipient will be retried later. delivery d: report mangled, will defer There is a serious bug in qmail-lspawn or qmail-rspawn. This recipient will be retried later. WARNINGS
internal error: delivery report out of range qmail-lspawn or qmail-rspawn has supplied a report on a nonexistent delivery. This is a serious bug. qmail-clean unable to clean up ... For some reason qmail-clean is unable to remove the indicated file. It will try again later. trouble fsyncing ... qmail-send was unable to write to disk the results of preprocessing a queued message. It will try again later. trouble in select There is an operating system bug. trouble injecting bounce message... qmail-send was unable to queue a bounce message, usually because the disk is full. It will try again later. trouble marking ... qmail-send was unable to record the result of a successful or permanently unsuccessful delivery. This means that the delivery will be tried again later. trouble opening ... qmail-send was unable to open the list of local or remote recipients for a message. It will try again later. trouble reading ... Either qmail-send is unable to read a recipient list, or it is unable to read the envelope of a queued message, or it is out of mem- ory. Whatever it was doing, it will try again later. trouble writing to ... qmail-send was unable to preprocess a queued message, usually because the disk is full. It will try again later. unable to create ... qmail-send was unable to preprocess a queued message, usually because the disk is out of inodes. It will try again later. unable to open ... qmail-send is unable to read the envelope of a queued message for preprocessing. It will try again later. unable to start qmail-queue... qmail-send is unable to queue a bounce message, usually because the machine is almost out of memory. It will try again later. This can also be caused by incorrect settings of $QMAILQUEUE or errors in a program or script which $QMAILQUEUE points to. unable to stat ... qmail-send is unable to obtain information about a file that should exist. It will try again later. unable to unlink ... qmail-send is unable to remove a file. It will try again later. unable to utime ... qmail-send is about to exit, and it is unable to record on disk the next scheduled delivery time for a message. The message will be retried as soon as qmail-send is restarted. unknown record type in ... There is a serious bug in either qmail-queue or qmail-send. SEE ALSO
qmail-send(8) qmail-log(5)
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