Displaying 20 results from an estimated 9000 matches similar to: "Sendmail novrfy filter by ip address?"
2005 Aug 05
2
SMTP auth with Sendmail
Dear All,
I have two machines, a Centos 3.4 machine and a Centos 4.1 machine.
I have used the same sendmail.mc file on each, and 3.4 machine does
plain SMTP auth with no problems, compiling the same mc file on the 4.1
machine gives this error:
xxxxx [x.x.x.x] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
in the logs, it doesn't even try to authenticate, the cyrus sasl rpm
2010 Mar 04
4
Permissions problem
What am I doing wrong here? I need to be able to write to /var/cvs.
This used to work before I moved these groups into an LDAP directory
instead of /etc/group:
[scarolan at watcher:/var/cvs]$ touch test.txt
touch: cannot touch `test.txt': Permission denied
[scarolan at watcher:/var/cvs]$ ls -ld
drwxrwsr-x 4 cvs cvsgrp 4096 May 18 2008 .
[scarolan at watcher:/var/cvs]$ id scarolan
2008 Nov 28
2
Sendmail - STARTTLS not appear on one client
Hi,
I have Sendmail configured to use STARTTLS for authentication. On all
internet connections and computers (that I have tested) works
connection over encrypted SMTP flawlessly. Today I was setting up mail
client on PC of my customer and standardily checked boxes, that I want
to use SSL for POP3 and SMTP. Next I wanted to check configuration (by
sending email from this mailbox to this mailbox)
2009 May 04
6
Best mobile SSH client?
I'm up for a cell phone contract renewal and am considering upgrading
my handset. I looked at some devices at my local AT&T store but
nothing really jumped out at me. I'm particularly interested in a
cell phone that has a reliable ssh client, with ssh-agent and public
key authentication abilities. Those of you who administer systems
remotely, what mobile ssh client do you recommend?
2009 Jun 03
4
Good md5sum snapshot tool?
I have a server that is undergoing some patching soon and would like
to make note of any files that have changed after the patching is
complete. Can you recommend a tool that uses md5sum snapshots to do a
quick before and after test, showing anything that's changed on a
particular file system?
2012 Mar 29
1
my spammer list
Hello,
Thanks to some nice people on here and other forums I have pretty much
finalized my whole mail system on centos 6.x.
With all the checks, greylisting, dev/null of any 8+ spam level SA, I
still get a few mails.
It seems like everytime I enable a new protectant, the mail stops
spamming for a few hours...then the spammers decide I am worthy of using
better methods against me..and more
2007 Mar 14
5
sendmail and rbl blocking - generating statistics
I have enabled the feature in sendmail.mc to check with spamhaus for
spammers. However since this block is being made at MTA level, I would
like to know is something can be done to obtain statistics of blocked
attemps.
thanks
--
------------------------------------------------------------
Erick Perez
Panama Sistemas
Integradores de Telefonia IP y Soluciones Para Centros de Datos
Panama,
2015 Feb 13
2
Centos 6 Sendmail backup MX Config
On Fri, February 13, 2015 11:52 am, Les Mikesell wrote:
> On Fri, Feb 13, 2015 at 11:39 AM, Valeri Galtsev
> <galtsev at kicp.uchicago.edu> wrote:
>>
>>> Otherwise it accept junk that your primary rejects
>>
>> Not exactly. If greylisting on primary is set, but on backup MX is not,
>> still what is killed by greylisting by primary MX, almost never
2011 Mar 03
4
Gnu Screen - terminal issues
I really like gnu screen and use it everyday but there's one thing
that is a bit inconvenient, and that's the odd line wrapping and
terminal size issues that seem to pop up. The problem crops up when I
type or paste a really long command, and then go back and try to edit
it; the text starts to wrap over itself and you have no idea what you
are editing. Any fixes for this?
2009 Jul 20
3
Limit RAM used by a perl script
I have a perl script which runs from a cron job. How would you limit
the amount of RAM that this script is allowed to consume? Is there a
ulimit setting that will accomplish this? If so does ulimit have to
be run each time the script is run, or is there a way to set it
permanently?
2019 Jul 27
2
submission configuration issues
> Le 27 juil. 2019 ? 14:30, Stephan Bosch <stephan at rename-it.nl> a ?crit :
>
> On 23/07/2019 17:13, Jean-Daniel Dupas via dovecot wrote:
>> Hello,
>>
>> I'm having trouble configuring the submission proxy.
>>
>> I have configured the submission service as follow:
>>
>> submission_host = smtp.example.com
>>
2012 Feb 08
1
TLS support on postfix
Hi List,
I have a postfix server based on CentOS 5 in which I have been trying to add TLS encryption support for SMTP.
From the localhost when I do an EHLO, following is the output
[root at xxxxxxx ~]# nc localhost 25
220 xxxxxxx.xxxx.xxx.xx ESMTP Postfix
EHLO localhost
250-xxxxxxx.xxxx.xxx.xx
250-PIPELINING
250-SIZE 41943040
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN
2015 Feb 13
4
Centos 6 Sendmail backup MX Config
Les Mikesell wrote:
> On Fri, Feb 13, 2015 at 11:39 AM, Valeri Galtsev
> <galtsev at kicp.uchicago.edu> wrote:
>>> Otherwise it accept junk that your primary rejects
>> Not exactly. If greylisting on primary is set, but on backup MX is not,
>> still what is killed by greylisting by primary MX, almost never will come
>> through backup MX. This is due to the
2008 Jul 15
2
Help with iptables rule for blocking UDP port 53
I would like to block all DNS queries that come from one particular ip
address. I used TCPdump to verify that the queries were in fact,
coming from this IP:
[scarolan at server:~]$ sudo tcpdump -n udp port 53 and src 10.100.1.1
tcpdump: listening on eth0
11:12:17.162100 10.100.1.1.19233 > 10.100.1.61.domain: 14270+ A?
server.domain.com. (32) (DF)
Could someone help with the proper syntax
2008 Aug 11
4
df to get total disk usage on all filesystems?
Is there a flag for the df command to get the total disk space used on
all filesystems as one number? I have a server with a lot of mounted
shares. I'm looking for a simple way to measure rate of data growth
across all shares as one total value.
2019 Jul 23
5
submission configuration issues
Hello,
I'm having trouble configuring the submission proxy.
I have configured the submission service as follow:
submission_host = smtp.example.com
submission_relay_host = localhost
submission_relay_port = 8587
submission_relay_rawlog_dir = /var/log/dovecot/
submission_relay_trusted = yes
My main issue is that until I login, dovecot-submission won't connect to the backend and query the
2008 Oct 14
3
Sendmail and pmtu discovery
We have an issue with some customers who refuse to accept ICMP traffic
to their mail servers. It seems that they have put Mordac, preventer
of information services in charge of their firewall policy
(http://en.wikipedia.org/wiki/List_of_minor_characters_in_Dilbert#Mordac).
My mail logs are showing that customers who specifically disallow ICMP
traffic have many "Connection Reset"
2006 Feb 27
1
Sendmail.cf / access.db
I've noticed from the sendmail logs, certain IP's are being blocked via
the known spammers configuration in the sendmail.cf. What I also note
is in my access file, I have several TLD's that are listed, yet are NOT
being blocked. Yes, I do call a make after each edit of the access
list, and going by the timestamp on access.db, it appears to being
updated, yet again, in the sendmail
2008 Jul 10
3
Iptables not blocking UDP port 53
I'm attempting to block access to port 53 from internet hosts for an
internal server. This device is behind a gateway router so all
traffic appears to come from source ip 10.100.1.1. Here are my
(non-working) iptables rules:
-A RH-Firewall-1-INPUT -s 10.100.1.1 -m tcp -p tcp --dport 53 -j REJECT
-A RH-Firewall-1-INPUT -s 10.100.1.1 -m udp -p udp --dport 53 -j REJECT
Further down the
2008 Oct 01
2
XDMCP - no GDM login, only gray screen with X
I'm having trouble getting the GDM login screen to show up when I
connect from a remote host. I'm using Xming on the local Windows
machine, but every time I connect to the remote server all I get is a
gray window with the X cursor. I have "Enable=true" in the [xdmcp]
section of /etc/gdm/custom.conf. IPtables is disabled. I've googled
around and read through the xdmcp page