How To Check If My Emails Have Been Bugged
Dec 17, 2007
i recently got a new server and i allowed a programmer to install exim, squirrelmail and spamassin for me.
the email system is working fine.
i am paranoid that he might have done some tweaking on my server which allows all my ingoing and outgoing emails to be cc'd to him.
im sure this is possible if someone gets root access to the server.
how to detect this and make sure that i am not bugged.
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Aug 11, 2007
I have purchased a server for layeredtech a few months back, and I just reliased that no one is receiving emails of their subscription in the forums, no contact forms are working on website, simply the server is not seding out the emails..
how can I fix it OR where to check whats wrong why its not sending emails?
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Jul 1, 2009
I would like to know how to check load via ssh and check files causing load?
I want the ssh codes for 2 different set of control panels, one with cpanel+whm and other with kloxo+hypervm
and I would also know how to check the files causing the load, such as some files could have been interrupted while processing, so they could be causing load some times, so I want to stop such processes if any are running on the vps on my friends accounts
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Sep 4, 2007
Since Jan 07, one of our servers has been sending thousands of emails to ne.jp hosts.
Eg from logs:
Code:
Sep 4 19:11:11 debian sm-mta[25383]: l84FY9ME016602: to=, ctladdr= (2001/2001), delay=01:37:02, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
Sep 4 19:11:11 debian sm-mta[25383]: l84FYB7d016734: to=, ctladdr= (2001/2001), delay=01:37:00, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
Sep 4 19:11:11 debian sm-mta[25383]: l84FY9A4016629: to=, ctladdr= (2001/2001), delay=01:37:02, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
Sep 4 19:11:11 debian sm-mta[25383]: l84FY9la016616: to=, ctladdr= (2001/2001), delay=01:37:02, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
Sep 4 19:11:11 debian sm-mta[25383]: l84FYCkO016807: to=, ctladdr= (2001/2001), delay=01:36:58, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
Sep 4 19:11:11 debian sm-mta[25383]: l84FYB7B016730: to=, ctladdr= (2001/2001), delay=01:37:00, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
Sep 4 19:11:11 debian sm-mta[25383]: l84FYCO0016757: to=, ctladdr= (2001/2001), delay=01:36:59, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
Sep 4 19:11:11 debian sm-mta[25383]: l84FYDjq016819: to=, ctladdr= (2001/2001), delay=01:36:58, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
Sep 4 19:11:11 debian sm-mta[25383]: l84FYBhL016751: to=, ctladdr= (2001/2001), delay=01:37:00, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
Sep 4 19:11:11 debian sm-mta[25383]: l84FYDPw016811: to=, ctladdr= (2001/2001), delay=01:36:58, xdelay=00:00:00, mailer=esmtp, pri=930403, relay=lsean.ezweb.ne.jp., dsn=4.0.0, stat=Deferred: Connection timed out with lsean.ezweb.ne.jp.
We're absolutely unable to track or find out who is sending it or how to stop this.
So I'm wondering if it is possible to prevent sendmail from sending to:
lsean.ezweb.ne.jp, OR
docomo.ne.jp, OR
softbank.ne.jp
/var/mail/vhostswww logs are not showing helpful info at all. Eg:
Code:
--l84GRnX5029819.1188924137/debian--
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=ISO-2022-JP
Mime-Version: 1.0
From: hanako.@docomo.ne.jp
Subject:
To: a_j.n-y_bluespider-tattoo@softbank.ne.jp
Message-Id: <200709041410.l84EA0Fh007971@debian>
Date: Tue, 4 Sep 2007 16:10:00 +0200
Tue, 4 Sep 2007 16:10:00 +0200
by debian (8.13.4/8.13.4/Submit) id l84EA0Fh007971;
Received: (from vhostswww@localhost)
for ; Tue, 4 Sep 2007 16:10:00 +0200
by debian (8.13.4/8.13.4/Debian-3sarge3) with ESMTP id l84EA0jk007973
Received: from debian (localhost [127.0.0.1])
Return-Path:
Content-Type: text/rfc822-headers
--l84GRnX5029819.1188924137/debian
Last-Attempt-Date: Tue, 4 Sep 2007 18:42:16 +0200
Diagnostic-Code: SMTP; 550 Invalid recipient:
Remote-MTA: DNS; mx.softbank.ne.jp
Status: 5.1.1
Action: failed
Final-Recipient: RFC822; a_j.n-y_bluespider-tattoo@softbank.ne.jp
Arrival-Date: Tue, 4 Sep 2007 16:10:00 +0200
Reporting-MTA: dns; debian
Content-Type: message/delivery-status
--l84GRnX5029819.1188924137/debian
<<< 503 No recipients specified
550 5.1.1 ... User unknown
<<< 550 Invalid recipient:
>>> DATA
... while talking to mx.softbank.ne.jp.:
----- Transcript of session follows -----
(reason: 550 Invalid recipient: )
----- The following addresses had permanent fatal errors -----
from localhost [127.0.0.1]
The original message was received at Tue, 4 Sep 2007 16:10:00 +0200
--l84GRnX5029819.1188924137/debian
This is a MIME-encapsulated message
Auto-Submitted: auto-generated (failure)
Subject: Returned mail: see transcript for details
boundary="l84GRnX5029819.1188924137/debian"
Content-Type: multipart/report; report-type=delivery-status;
MIME-Version: 1.0
To:
Message-Id: <200709041642.l84GRnX5029819@debian>
From: Mail Delivery Subsystem
Date: Tue, 4 Sep 2007 18:42:17 +0200
Tue, 4 Sep 2007 18:42:17 +0200
by debian (8.13.4/8.13.4/Debian-3sarge3) id l84GRnX5029819;
Received: from localhost (localhost)
Return-Path:
From MAILER-DAEMON Tue Sep 4 18:42:17 2007
--l84GRnX4029819.1188924135/debian--
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=ISO-2022-JP
Mime-Version: 1.0
From: hanako.@docomo.ne.jp
Subject:
To: a_j.n-y_bluespider-tattoo@softbank.ne.jp
Message-Id: <200709041411.l84EB8CS011861@debian>
Date: Tue, 4 Sep 2007 16:11:08 +0200
Tue, 4 Sep 2007 16:11:08 +0200
by debian (8.13.4/8.13.4/Submit) id l84EB8CS011861;
Received: (from vhostswww@localhost)
for ; Tue, 4 Sep 2007 16:11:09 +0200
by debian (8.13.4/8.13.4/Debian-3sarge3) with ESMTP id l84EB8f6011862
Received: from debian (localhost [127.0.0.1])
Return-Path:
Content-Type: text/rfc822-headers
--l84GRnX4029819.1188924135/debian
Last-Attempt-Date: Tue, 4 Sep 2007 18:42:15 +0200
Diagnostic-Code: SMTP; 550 Invalid recipient:
Remote-MTA: DNS; mx.softbank.ne.jp
Status: 5.1.1
Action: failed
Final-Recipient: RFC822; a_j.n-y_bluespider-tattoo@softbank.ne.jp
Arrival-Date: Tue, 4 Sep 2007 16:11:09 +0200
Reporting-MTA: dns; debian
Content-Type: message/delivery-status
--l84GRnX4029819.1188924135/debian
<<< 503 No recipients specified
550 5.1.1 ... User unknown
<<< 550 Invalid recipient:
>>> DATA
... while talking to mx.softbank.ne.jp.:
----- Transcript of session follows -----
(reason: 550 Invalid recipient: )
----- The following addresses had permanent fatal errors -----
from localhost [127.0.0.1]
The original message was received at Tue, 4 Sep 2007 16:11:09 +0200
--l84GRnX4029819.1188924135/debian
This is a MIME-encapsulated message
Auto-Submitted: auto-generated (failure)
Subject: Returned mail: see transcript for details
boundary="l84GRnX4029819.1188924135/debian"
Content-Type: multipart/report; report-type=delivery-status;
MIME-Version: 1.0
To:
Message-Id: <200709041642.l84GRnX4029819@debian>
From: Mail Delivery Subsystem
Date: Tue, 4 Sep 2007 18:42:15 +0200
Tue, 4 Sep 2007 18:42:15 +0200
by debian (8.13.4/8.13.4/Debian-3sarge3) id l84GRnX4029819;
Received: from localhost (localhost)
Return-Path:
From MAILER-DAEMON Tue Sep 4 18:42:15 2007
--l84GRnX3029819.1188924134/debian--
How would I solve this problem as it's making our server load skyhigh 24/7.
Additional info about system:
> Debian Linux, latest kernel
> Sendmail (we've tried postfix, exim, with same results)
> Non cPanel system.
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Jun 7, 2007
Let's say I have a VPS with 512 MBs of RAM.
How do I check in shell that this is indeed the case?
I read in some places that "top" and "free -m" and such can help.
But these gave me way more than 512.
Here is the output from my "free -m". Total shows here 3886 MBs of MEM??? That is almost 4 Gigs. Please someone explain this.
total used free shared buffers cached
Mem: 3886 3721 164 0 17 542
-/+ buffers/cache: 3161 724
Swap: 6142 2020 4121
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Mar 20, 2007
Quote:
Nobody Check 1.0.3 Current on cPanel
Tue Mar 20 16:00:02 SGT 2007 on blue.mydomain.com
Server Load: 16:00:02 up 21 days, 14:02, 0 users, load average: 2.73, 2.20, 2.08
Warning: Malicious Nobody Process Found
=========================================
Options: kill bad proc=1 logging lvl=1
SCAN SUMMARY
========================================
Clean Processes: 57
DETECTED Malicious Processes: 1
DETECTION DETAILS
========================================
DETECTION: Process 4221 with name php and path /usr/bin/php
Process ID: 4221 has been killed
Restuls for PID: 4221
total 0
dr-xr-xr-x 3 easyzz easyzz 0 Mar 20 16:00 .
dr-xr-xr-x 291 root root 0 Feb 27 10:01 ..
dr-xr-xr-x 2 easyzz easyzz 0 Mar 20 16:00 attr
-r-------- 1 easyzz easyzz 0 Mar 20 16:00 auxv
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 cmdline
lrwxrwxrwx 1 easyzz easyzz 0 Mar 20 16:00 cwd -> /home/easyzz/public_html
-r-------- 1 easyzz easyzz 0 Mar 20 16:00 environ
lrwxrwxrwx 1 easyzz easyzz 0 Mar 20 16:00 exe -> /usr/bin/php
dr-x------ 2 easyzz easyzz 0 Mar 20 16:00 fd
-rw-r--r-- 1 easyzz easyzz 0 Mar 20 16:00 loginuid
-r-------- 1 easyzz easyzz 0 Mar 20 16:00 maps
-rw------- 1 easyzz easyzz 0 Mar 20 16:00 mem
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 mounts
lrwxrwxrwx 1 easyzz easyzz 0 Mar 20 16:00 root -> /
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 stat
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 statm
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 status
dr-xr-xr-x 3 easyzz easyzz 0 Mar 20 16:00 task
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 wchan
Netstat:
Environ:
Hello, I got this notification from the 'Nobody Check'.
Is there anything I need to be aware of? ..
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Apr 20, 2009
I'm running CSF on a Cpanel server and have questions about new features in CSF
Apache Check
Check Apache weak SSL/TLS Ciphers (SSLCipherSuite)
Results
Cipher list []. Due to weaknesses in the SSLv2 cipher you should disable SSLv2 in WHM > Apache Configuration > Global Configuration > SSLCipherSuite > Add -SSLv2 to SSLCipherSuite and/or remove +SSLv2. Do not forget to Save AND then Rebuild Configuration and Restart Apache, otherwise the changes will not take effect in httpd.conf
Can someone explain this in laymen terms? I know this is new in Cpanel. I'm already running Apache 2.2, PHP 5.2.9 with suPHP enabled and mod_security as well (these rules: [url]
Also, what exactly are these CSF checks?
Check csf PT_SKIP_HTTP option
This option disables checking of processes running under apache and can limit false-positives but may then miss running exploits
Check csf SAFECHAINUPDATE option
This option closes a window of opportunity that opens when dynamic chain updates occur
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Apr 11, 2008
I recently added ubl.unsubscore.com to my email server. I only have that one and the SpamHaus (Zen) activated.
I am able to see the SpamHaus listed on DNSStuff and on SpamHaus website that the person trying to email me is not listed.
So I have to think that it is ubl.unsubscore.com list. But what domain name can I enter into the browser to check this list? www.unsubscore.com does not work. A little searching led me to lashback, but the IP is not listed there either.
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Nov 25, 2008
Few days ago I had a problem with my httpd. I finally nailed it down and came on a conclusion that my MaxClients were set too low so I had to set it to high number and it seems like that the proble of "Network Timeout" had been resolved but now the problem is still continued. Here is what I think is wrong
Cpu(s): 1.5%us, 0.4%sy, 0.0%ni, 96.7%id, 0.3%wa, 0.3%hi, 0.8%si, 0.0%st
The 96.7%id always stays above 90% is that bad and how do i fix it?
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Jan 29, 2007
I have a problem where mysqld is using 95 - 97% CPU usage all the time.
How can I see what user is causing this ? I have installed mytop but when I use it I get
Quote:
[root@server1 ~]# mytop
Cannot connect to MySQL server. Please check the:
* database you specified "test" (default is "test")
* username you specified "root" (default is "root")
* password you specified "" (default is "")
* hostname you specified "localhost" (default is "localhost")
* port you specified "3306" (default is 3306)
* socket you specified "" (default is "")
The options my be specified on the command-line or in a ~/.mytop
config file. See the manual (perldoc mytop) for details.
Here's the exact error from DBI. It might help you debug:
Access denied for user 'root'@'localhost' (using password: NO)
I really need to track down the culprit!
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May 6, 2007
Am am running through a checklist of to-do's on a new VPS I just received. I haven't used it in a production environment yet.
While doing a root kit check I got these lines back that perturb me.
Checking `bindshell'... INFECTED (PORTS: 465)
Checking `lkm'... You have 103 process hidden for readdir command
chkproc: Warning: Possible LKM Trojan installed
how serious the implications are of those lines? And should I expect this on a machine that has no traffic and is a fresh install?
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Jul 15, 2007
One of my hosted user complained that he can't access his website nor he can ping the website. When I asked him to access my 2nd server (same datacenter), it went fine. I could be thinking that my server is blocking his IP.
How do I check if his IP is blocked?
I am using APF+BFD Iptables firewall (i don't know but i hope this make sense)
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