Ubuntu Servers :: Root Mailbox Filling With Cron Messages?
Feb 3, 2010
I'm getting the following messages sent to my root account mailbox. It appears to be reporting an issue finding ntpdate, however when running the following command:
aptitude show ntpdate | grep State
It shows as installed and any ntpdate commands work with no issues, so I have no idea why this is getting regularly reported?
From root@mydomain.co.uk Wed Feb 03 18:20:01 2010
Return-path: <root@mydomain.co.uk>
Envelope-to: root@mydomain.co.uk
Delivery-date: Wed, 03 Feb 2010 18:20:01 +0000
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Sep 1, 2011
I am using my ubuntu server as my home router.Everything is working as expected with one exception.y DSL modem is a POS and every now and again it looses connection to the router. Sometimes it needs to be reset and sometimes it does not.Either way, when this happens my ubuntu server needs to reacquire an IP from my ISP. If it screws up when I'm at home it's no big deal, but if it happens when I'm not around my housemates have taken to hitting the reset switch on the server. I'm not a big fan of this so I wrote a script to ping my ISP's gateway. If it's unavailable it bounces the eth0 interface and tries to get an IP. I am running this script every couple of minutes in a cron job. Now I'm getting syslog entries like
Code:
Aug 9 20:31:01 portal CRON[9602]: (root) CMD (/opt/ChkAndFixNetwork.sh)
every few minutes. This is annoying and makes the logs useless for troubleshooting. I
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Sep 27, 2010
im using postfix with amavis and spamassassin as spam/virus filtering and its working great.However, i get a "lot"(1-5/day) of "bad header" messages beeing quarantined by the server. And most of theese bad headers are false positives that i manually have to deliver to the correct mailbox.How can i make amavis/spamassassin deliver bad header messages to the correct mailbox and not place them in quarantine?Theese are my amavis settings. (which file is used, 20-debian or 21-ubuntu??)
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May 18, 2011
I have a number of servers I manage, and one of them is archiving old data that is never modified on a separate partition. This partition is at 100% capacity. A friend of mine says this is an unsafe way to keep this partition, even tho I don't plan to add any more data to it or change anything within. I know I can archive the data to dvd, but I'd like to keep the data online for my users.
What are your opinions on this? Can I keep this archive partition at 100% capacity? Or do I risk some sort of data corruption? Should I mount this partition as read-only to help prevent any corruption?
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Mar 25, 2010
The system crontab (/etc/crontab) uses the same format, except that the username for the command is specified after the time and date fields and before the command.
[code]...
Every hour, I get an e-mail complaining about the first line of the crontab:
[code]...
I get the same complaint from the other entries: It looks to me as if cron, or anacron, is trying to execute the user (root) as a command. Predictably, the shell doesn't like it, so barfs and triggers an e-mail about it. Why is this not doing what the man page says it should do? The 2nd problem I believe is related to exim, not cron. The e-mails I'm getting above are being bounced from my ISP because they are directed to root@myisp.com, rather than my regular e-mail address. When the message bounces, it bounces to my regular e-mail address. In /etc/aliases, I have root: [URL]... and in etc/email-addresses I have root: [URL]... Adding the entry to /etc/email-addresses allowed the bounce to find me because the sender's address is [URL]... but how can I get cron to send these messages to me in the first place, instead of root?
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Dec 9, 2009
I have the following BIND messages filling up my SysLog that I'm hoping someone can explain to me:
Code:
Dec 9 09:35:44 dns2 named[30103]: client 67.130.224.5#49551: query (cache) 'www.domain.com/A/IN' denied
Dec 9 09:35:47 dns2 named[30103]: client 67.130.224.5#64561: query (cache) 'www.domain.com/A/IN' denied
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I would expect this behavior if "domain.com and anotherdomain.com" wasn't a domain that I hosted. But this is a valid domain that this server should be answering for. In my named.conf I do have the
Quote:
allow-query { any; };
option on every zone. This is my slave server and I have the primary shut off so I can test this slave server. FYI: So far queriers still seem to be working. The pages for the sites are still coming up via the internet.
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Jan 28, 2010
Cron for root does not run,it's 8.04LTS ubuntu server,however Cron runs for other users,Can anyone help?i've checked many times that i have the right syntax.
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Mar 8, 2010
I have a batch job which logs in to the server every 10 minutes via windows rsh. The job checks to see is there are any files that need to be send via a EDI serverto a supplier.The following logwatch report is swamped with the login messages and would like to either suppress the logging in PAM? or suppress the entry in the logwatch report?But I still want logging id the username is not username1.Connections (secure-log) Begin rshd[1754]: pam_rhosts_auth(rsh:auth): allowed to username1@10.0.0.1 as myedi
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Nov 8, 2010
I'm wondering why I keep getting the following in /var/log/messages on a system running the latest CentOS 5 64 bit kernel:
Nov 8 09:50:24 hostname kernel: myri10ge: eth2: link down
Nov 8 09:50:24 hostname kernel: myri10ge: eth2: link up
Nov 8 09:50:34 hostname kernel: myri10ge: eth2: link down
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Feb 10, 2010
I am unable to run my cron tab job without root password.I made a little research on the forums and appearantly it should be changed.Must I change "passwd" part with my root password?
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Dec 22, 2015
I'm booting to Kali 2.0 live from USB and wanted to add persistence, but I can't get OpenVAS setup. The setup script runs and eventually fails due to no more disk space. Here's my df -h output:
Here's gparted:
When the setup runs it fills up root (/) which is only 872mb. This is a 16gb USB so I'm wondering if there's a way to allocate some of the 11gb of unallocated space to root? I couldn't tell how to do this with gparted, would I need to build a custom Kali iso or something with different partitioning?
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Apr 26, 2010
My /tmp directory is being filled up with root-tmp.####. I suspect they are being created by bastille-tmpdir-defense.sh, but they do not seem to get removed.
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Feb 16, 2010
I have set up a cron in /var/spool/cron/root
*/15 * * * * /usr/bin/phplist.sh
I can see in /var/log/cron that it is running every 15 minutes but it has no effect. It is not doing the commands in the bash script.
If I run /usr/bin/phplist.sh right in the shell it works great.
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Apr 29, 2011
Can anyone tell me how i change the default domain name for cron?everything i cron runs it emails from and to user@com.com
this leaves me with a massive list of failed mails in postfix.i have mailto on my main crontab but i cant do it on all of them.
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May 26, 2011
(We are running CyrusIMAP v2.3.16 on Slackware 13.1)The Problem:A user deleted a HUGE public Folder (>10000 Messages, >250 Subfolders), and now the Folder is in his "Trash" folder.Besides the obvious "Why did he have the access rights to do so in the first place??" question, I am honestly at a loss as to how the user did it:Trying to copy it back using Thunderbird failed utterly, TB crashes, or copies only a part, or nothing at all... (Tried 3.x on Windows and Linux Clients)So now I'm searching for a way to copy the folder back serverside.But web and manpages seem to offer few help:I don't want to move the folder to another partition, nor do I want to reconstruct or restore any corrupted data...All I want is to copy the folder from "user/USERNAME/Trash/HERE" back to "shared/archive/HERE".
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Jan 1, 2011
I have a Linux server that has local mail service. There are few user accounts on this server. User may send the mail to each other but that only restrict to LAN environment only.
For example, I may
# mail user1
To send mail to user1. User are not able to send mail to public. Some service like hylafax using this local mail service to send notification of fax status.
I don't want to manage and maintain local mail service anymore. I have subscribed a package from ISP to host a public domain of my own. I wish to have my hylafax service to able to send the notification mails to public mail server, is that possible to do it? It is great if all mails that send to local mail server may forward to public mail server. That makes the local mail service serve mail forward only.
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Apr 6, 2010
I'm setting up a logging script to track utilization on our deployed systems. I'm running it every minute using cron. Each time it runs, I get an entry in /var/log/messages telling me it ran. That is a lot of useless information. Is there a way to prevent the creation of these log entries?
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Mar 1, 2010
My filesystem is almost full and the problem is in the proc folder.What does that folder contain and can I delete something from it?
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Aug 12, 2010
When building 8.04 servers, I reconfigure snmpd's logging options to prevent copious low priority messages being logged whenever our network management workstation polls them. I edit /etc/default/snmpd and change line 11 from:
Code:
SNMPDOPTS='-Lsd -Lf /dev/null ...'
to:
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Mar 16, 2011
I have a directory /var/log/data its about 80 GB,It filling up quit rapidly.I don't have much space left in the system them So i will attaching another External HDD.My question is that i need to mount /var/log/data to new HDD.So i have old data and pulse new coming up.I don't want to copy data from /var/log/data then mount new HDD to /var/log/data you know what i am taking about is there a simple way like linking or any other.
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May 8, 2011
EDIT: Change the topic, see post #3
I've been following this guide: http://flurdy.com/docs/postfix/
And done the points up to "Advanced mail server" and are trying to test mailing mail@mydomain.com to mail@mydomain.com (yes, the same inbox) using Thunderbird, through my own DNS, from the server.
But I get the following error: The message can not be sent because the connection to SMTP server mydomain.com timed out.
And when I check /var/spool/mail/virtual where the mailboxes are supposed to be stored there are none.
So I'm wondering how I create a mailbox with postfix.
I can add that I am quite a noob at linux but have to do this in a school project.
I'm using ubuntu server 10.04 32bit with GUI (yes I know, I know)
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Jan 27, 2011
running squirrelmail, postfix and dovecot, I filter out mails which are spam into a spambox and non-spam into the inbox but by default, the user is not subscribed to the spambox and therefore, the spambox is not visible to the user, how can I make it such that each time a user is created he or she is automatically subscribed to the spambox?
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Feb 14, 2011
I have made some little mail server (postvix+dovecot+fetchmail) at ubuntu. The mail serve is using system accounts. Now I want to creat Shared mailbox. I have found some information, but I can't understand it correctly. Can U view the below information and correct me.
I have several accounts: Oleg (my account - /home/oleg/Maildir/); pankov (/home/pankov/Maildir); cv ( /home/cv/Maildir/). I want to share the mailbox of CV user:
I have add the follwoing information to dovecot.conf:
# You need to create also a private namespace:
namespace private {
separator = /
prefix =
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Mar 13, 2011
I'm just getting started with postfix for the first time (using courier pop) and everything is working well. However I can't seem to figure out how to only allow some system users to have mailboxes?
For example I have a few accounts which are FTP only accounts but they still have mailboxes under postfix? Is there any way to tell postfix the accounts that I actually want mailboxes for?
Also on a side note, I notice that mail seems to be stored under the user's home directory. I'm scared they may accidentally delete them.
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Feb 9, 2011
without realising I started thunderbird from a root window, I set it up along with rules and about 2 hours finetuning.
I figured out how to get the icon on the top panel, but that is naturally started as my user gsm.
Is there an easy way of migrating the whole mailbox and subfolders form the root install to the gsm user?
Or is it easier to start from scratch?
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Jan 31, 2010
The user "abimail" has a mailbox specified in /home/abimail/.spop3d which is /var/mail/abimail. The permissions of /var/mail/abimail are:
Code:
rwxrwx--- 1 abimail mailgroup 192113 2010-01-28 20:24 /var/mail/abimail. When logging in to solid-pop3d as user abimail and attempting to fetch mails, the login works but it will pop up the error "can't open mailbox file"; syslog entries:
Code:
Jan 31 17:38:10 h1347290 solid-pop3d[23857]: user abimail authenticated - 87.176.220.50
Jan 31 17:38:10 h1347290 solid-pop3d[23857]: mailbox: can't open mailbox file: /var/mail/abimail
Jan 31 17:38:10 h1347290 solid-pop3d[23857]: mailbox: open: Permission denied
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Nov 3, 2010
I work for a company that makes portable devices running Linux and I was recently asked to make the underlying file system read-only for "security" purposes. Since the distribution is based on LinuxFromScratch, I know that very little writing happens at run time. So, even if the device runs on a usb flash device, I doubt that putting the root file system RO will be that beneficial. I am actually more concerned about a process actually breaking because it cannot open a file in RW mode than a process going rogue and filling the root file system with log files, etc. I'd really like to ear what kind of advantages disadvantages there really is with read-only file-systems.
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Jun 25, 2011
I have an external usb hard drive that spins down every 10 min. The commands in 'hdparm' do nothing to override the internal settings. So, I wrote a script to touch a file every 5 minutes, and it will run as root because of the mount command, and I want it to run for every user. The script is executable, owned by root, and root is the group, with 755 permissions.
no_sleep.sh in /usr/sbin:
Code:
#!/bin/bash
# Script to keep external drive from spinning down
diskmounted=$(mount | grep Backup | wc -c)
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Sep 22, 2010
I have two users in my system. Admin(Root) , and "student". I am making a bootable USB with Ubuntu 10.04 with two partitions. What i need is a cron-job who copies some files that the student has made(from the first partition) onto a partition which he is not allowed to access. The way i thought it should be done was making a root cron-job which mounts the drive and then copies the documents, and maybe unmounts it again.
The problem with this is that, when i mount it, wouldnt it be accessible to the "student" as well then? Since i give him sudo-rights and mounts the drive in the background for him? Alternatively i could unount it straight after the copying is done, but then it would do this too often I guess.
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Nov 21, 2010
I am trying to run rsnapshot from cron via root's crontab file (crontab -e). If I run rsnapshot from the command line with sudo it works perfectly, however, if I run it from cron:
Code:
* * * * * /usr/bin/rsnapshot hourly >/tmp/crontab.out 2>/tmp/crontab.err
This does not work. The crontab.err file shows:
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