Questions tagged [blacklist]
A blacklist is a basic access control mechanism that rejects elements included in the list.
188
questions
1
vote
3
answers
5k
views
IPTables add an IP to IPSet list
How to correctly add an IP address to ipset from an iptables rule?
Or isn't that possible at all?
This rule doesn't work for me: -A INPUT -m recent --name IP_LIST --set
Type of IP_LIST is hash:net
...
1
vote
1
answer
302
views
I cannot access my websites but everyone else can [closed]
About 4 days ago I could no longer view my websites from my IP address. I can see it through proxies and other IPs, everyone else sees it fine.
I've contacted my host, they say I'm whitelisted and ...
0
votes
1
answer
204
views
Global Authority for Blacklisting IPs
I know that there are few common ways to block attacking IPs (such as deny in htaccess). Additional to that, we could get a huge list of IPs to block from misc sites such as :
http://www.okean.com/...
0
votes
1
answer
6k
views
banning all *azenv.php request to my server
I am using apache 2.2 under centos6, and I'm recently having some kind of accesses that are unwanted, and that I wish to ban.
For instance, I have this in my error_log:
[Sun Apr 14 01:06:29 2013] [...
3
votes
3
answers
11k
views
Black Hole DNS on Windows DNS Server
I am looking at configuring our Windows DNS Servers for some type of DNS based blackhole operation. Ideally, we would be able to use feeds from MalwareDomains.com or the like. I was curious how one ...
0
votes
1
answer
727
views
My shared IP address is blacklisted. What's the quickest way of temporarily use another SMTP account with the same domain?
I manage a few shared hosting accounts for some customers in different hosting providers. One of the IPs of those accounts was blacklisted and my customer hasn't been able to send emails to Google ...
0
votes
1
answer
2k
views
A record blacklisted but not the originating IP of affected messages - Gmail rejections
A customer's email is being rejected by gmail with the following codes:
Action: failed
Status: 5.7.0
Diagnostic-Code: smtp;
554 5.7.0 Reject,
id=17756-61 - SPAM
I see the A record for the domain, ...
1
vote
1
answer
1k
views
In postfix how can I conditionally enforce check_sender_access
I am servicing 2 virtual domains: domain1.org , domain2.org. I want to enforce the following policy:
If a client connects from an IP address in $mynetworks then I want to allow only mails for which ...
0
votes
2
answers
3k
views
Why are my emails going to spam folder?
My server ip is 78.46.138.249 and none of the blacklists I could find blacklist my domain. Nevertheless, many of my customers recieve their emails in their SPAM folder. I just created a live.com ...
1
vote
2
answers
218
views
multiple blacklist files shorewall
I have been blocking by ip with shorewall and the blacklist file. I have decided to block a few country entirely and the blacklist file is huge!
So my question is this:
Is it possible to have ...
2
votes
2
answers
2k
views
Blacklist preventing DNS lookups?
To make a long story short, some users at another company who I have a lot of email correspondence with started having problems sending me email, they would get a message from the mailer daemon at ...
2
votes
1
answer
2k
views
How should I manually add IP addresses to denyhosts?
I have a few IP addresses I want to add manually to denyhosts because they're huge sources of inbound spam. What's the best way to do this? Or should I not be messing with it?
I want to manually ...
2
votes
1
answer
238
views
at what level modprobe operates ? - linux
I have a machine with Ubuntu 12.04 64 bit, i have the need for blacklisting a module, i have blacklisted it in blacklist.conf but nothing happened; i have solved my problem passing modprobe.blacklist=&...
4
votes
2
answers
12k
views
Gmail.com detect mail as spam, but the server is not on any BlackList
I have an issue with Google. (GMail to be exact)
About 1 month ago, we had a security breach, and mail was relayed through our servers.
we got listed in almost ALL Black-Lists :(
we fixed the ...
2
votes
1
answer
284
views
How do I implement IP-based export restrictions for my data stored on Amazon S3?
A little background: Corporate wants to make our downloads unavailable to U.S. export-restricted countries like North Korea, Iran, Syria, etc. Restriction by IP-block is considered good enough. (Yes, ...
0
votes
3
answers
2k
views
SMTP IP - Bad reputation, how do I work around?
I recently had a spamming incident and got listed on a blacklist. I have rectified the issue, removed from the blacklist, but my IP reputation is now classified as a high volume sender.
What is the ...
2
votes
1
answer
1k
views
How to whitelist CloudFlare IP ranges within iptables rules (multiport)?
There seem to be many different ways to setup whitelist rules within iptables.
What is the wisest way to whitelist the CloudFlare IP address ranges below via SSH?
204.93.240.0/24 (204.93.240.0 - 204....
4
votes
3
answers
8k
views
Postfix restrict recipients
how can I configure postfix to allow sending to a certain (external) domain only?
I'm already using check_recipient_access. Content of my /etc/postfix/recipients_restrictions:
domain.com OK
My (...
11
votes
2
answers
23k
views
Where to place Nginx IP blacklist config file?
I have an Nginx web server hosting two sites. I created a blockips.conf file to blacklist IP addresses that are constantly probing the server and included this file in the nginx.conf file. However ...
-7
votes
2
answers
2k
views
Mail server not sending or receiving after removal from barracuda blacklist to white list [duplicate]
Possible Duplicate:
mail loops back to myself | postfix
Mail server not sending or receiving after removal from barracuda blacklist to white list. I've checked against black lists and the ip and ...
0
votes
1
answer
680
views
Will the Domain SMTP IP been blacklisted cause the Email Contains the Domain not deliver?
One of my domain is using https://www.cloudns.net/ as DNS server, they also offer email forward, so I need to setup my MX to
5 mailforward1.cloudns.net
10 mailforward2.cloudns.net
to use the ...
0
votes
1
answer
2k
views
postfix global white/blacklist defined by pair
I have defined global whitelist in postfix using MYSQL with the following options:
smtpd_recipient_restrictions =
reject_invalid_hostname,
check_client_access mysql:/etc/postfix/...
-6
votes
2
answers
2k
views
Bulk email prevent blocking
We are going to send huge bulk emails (It's an invitation to our site). I setup an instance on Amazon and installed zimbra on that along with phplist which is configured. DKIM and Domain keys are ...
0
votes
4
answers
4k
views
Emails are regularly blacklisted due to being hosted on a shared (blacklisted) server. What can I do besides moving away from this shared server?
My client's emails are blacklisted because his account is on a shared server which gets blacklisted from time to time. The hoster wants him to move to an expensive dedicated server.
What could I do ...
2
votes
1
answer
209
views
Will using google apps emailhosting get rid of blacklisting caused by a shared server account?
a client`s email addresses are constantly blacklisted due to other users who share the same server. the hoster does want him to switch to his own dedicated server, so he gets his own ip.
my question ...
0
votes
2
answers
2k
views
How to add iptables ip blocklists to Plesk 10.4.4 (CentOS)?
I'm trying to figure out the best way to add IP blocklists to my Plesk 10.4.4 server (CentOS). It's a simple Virtual Server I recently acquired through my hosting company.
I've used .htaccess files ...
0
votes
4
answers
6k
views
squid blacklist solution
I've installed squid proxy server for a company and now they ask me to add blacklisting capabilities for squid.
The most obvious thing that comes to mind is just to find a huge blacklist file on the ...
2
votes
3
answers
10k
views
Email Server IP Address is Blacklisted
we have a Zimbra Mail server that was being used for 2 months now.
the last week we faced a problem that the Public IP that was being used for our mail server started to be blacklisted and we couldn't ...
3
votes
3
answers
3k
views
hotmail blacklist and rDNS questions
My company has recently purchased a VPS for email and webhosting. I am not an expert on email authentication but here is my story.
After the VPS was purchased we started receiving bouncebacks with ...
-1
votes
1
answer
2k
views
Dreamhost SSH activity now ip is blacklisted [closed]
I think that dreamhost blacklisted my ip address. I am giving this assumption due to the fact that I can not visit any of the hosted sites on the dreamhost server (namor). I also still have an ...
0
votes
2
answers
213
views
Exchange 2003 external recipients causing blacklist issues
Over the past few days our Exchange 2003 Small Business Server has been building up outgoing mail. I found out that we have been blacklisted by numerous email lists. In our queues there is about 500,...
-2
votes
1
answer
217
views
Black Listing in outbound relayed e-mail
We send outgoing e-mail with one server relaying e-mail through another server. When e-mail is getting black-listed, is it the originating server that is being blacklisted or the relay?
1
vote
5
answers
374
views
IP address blacklisting program
Are there any IP address blacklisting programs for Linux servers that allow the administrator to specify certain conditions that trigger an iptables blacklist on IP addresses scanning for ...
23
votes
6
answers
12k
views
Use IPtables or null route for blacklisting about 1 million IP addresses?
I've come across a situation where a client needs to blacklist a set of just under 1 million individual IP addresses (no subnets), and network performance is a concern. While I would conjecture that ...
0
votes
1
answer
3k
views
PostFix Blacklist Configuration
I have setup up a basic email server using PostFix with Dovecot/IMAP. But i face some issue with the blacklist setup.
below is my postfix main.cf
smtpd_recipient_restrictions = check_sender_access ...
7
votes
5
answers
36k
views
How do I get my server off the ivmSIP/24 blacklist?
I checked my server IP using this tool:
http://www.mxtoolbox.com/SuperTool.aspx
It's come up on the ivmSIP/24 list.
What can I do to get my IP removed from this list? I have SPF records set to allow ...
7
votes
2
answers
9k
views
Refuse to send email to specific recipients with Postfix
So, right now I am halfway through trying to setup an outgoing-mail blacklist, by way of smtpd_recipient_restrictions.
The problem I am experiencing is that my test emails are being delivered when I ...
3
votes
1
answer
583
views
How does IP blacklisting work on virtualized/shared hosting?
I have read that many blocks of IP addresses associated with Amazon EC2 have been blacklisted by various ISPs. Therefore, even if you never sent spam yourself, emails you send from an Amazon instance ...
1
vote
1
answer
3k
views
Exchange 2003 - Message delievery fails
I am having issues with sending mail to specifics domains. The bounce back message is:
"Could not deliver the message in the time limit specified. Please retry or contact your administrator."
...
1
vote
2
answers
2k
views
User agent blacklist recommended
Perishable Press publishes a managed user agent blacklist frequently, which blocks bad bots which htaccess directives.
Article to be found here: http://perishablepress.com/press/2009/03/29/4g-...
-1
votes
1
answer
446
views
Getting myself removed from the SORBS blacklist
I am now on the SORBS-SPAM blacklist, how can I get myself removed?
This was an issue originally with another machine in our company which has since been cleaned up, but I think because I share the ...
1
vote
3
answers
4k
views
How to go about deploying batches of 5,000 emails?
I have been warned that sending too many emails too quickly can trigger an internet email blacklist/spam filter.
I have a list of approximately 5,000 customers that I want to send a newsletter to.
I ...
1
vote
5
answers
217
views
Mail server blacklists
Recently I've had a few clients on a server having issues with a blacklist. I've been googling for about an hour and am a little tired of it, but maybe someone here can help me.
What do blacklists ...
2
votes
4
answers
6k
views
Where to find and how to block blacklisted IPs and proxies?
Good day everyone!
I'm looking for a way to block incoming requests from blacklisted IPs and proxies (mostly anonymous) to my server. While it's quite obvious how to do it using Apache config the ...
5
votes
2
answers
8k
views
CBL This IP address is HELO'ing as "localhost.localdomain"
I am pretty lost here, my server somehow got into a blacklist. And I don't know why and how to solve it. Please take a look at the link below.
CBL List - click here
Anyone knows what is going on ...
1
vote
1
answer
583
views
blacklisted - mdaemon misconfigured?
I would like to ask how to get off the blacklists such as gremlin.ru and rfc-ignorant.org abuse. http://multirbl.valli.org/lookup/79.129.24.240.html
Is there anything I should setup in mdaemon server,...
0
votes
1
answer
523
views
Null-route/blacklist certain websites on IPtables router [closed]
I've set up a home server to work as a router/NAT. This is done with IPtables forwarding rule.
Now I'd like to block certain websites, like facebook. I thought I could just add 127.0.0.1 facebook.com ...
8
votes
2
answers
23k
views
Blocking apache access via user agent string
I've got a scripter who is using a proxy to attack a website I'm serving.
I've noticed that they tend to access the site via software with a certain common user agent string (i.e. http://www....
0
votes
2
answers
2k
views
IP Blacklists and suspicious inbound and outbound traffic
I administer a web server and recently we had our IP banned (!) from our host after they received a notification e-mail for abuse. In particular our server is allegedly involved in spam attacks over ...
1
vote
1
answer
543
views
Blacklisting Specific From and To with Postfix
I have a scenario where I need to blacklist emails from one email to one of our local emails. Is blocking this specific scenario possible in postfix?
For example, emails from [email protected] ...