Questions tagged [filtering]
The filtering tag has no usage guidance.
109
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How to filter TCP packets based on flags using Packet Filter
Well, I didn't know exactly how to ask this question, but I know that you can use the keyword flags to especify which flags you want to filter.
According to the documentation of the Packet filter:
...
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php input filtering, unwanted slashes in get and post params
How can I disable input filtering?
Here is an example:
echo "\$_GET: ";
var_dump($_GET);
echo "filter.default: ";
var_dump(ini_get('filter.default'));
echo "filter.default_flags: ";
var_dump(...
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Given an Amazon Web Service Security Group, how can I find out what the IP's are?
I'm looking at using a cloud service which has an AWS Security group...
I've got a hardware firewall and a software firewall.
I have no idea how to say: Given that security group, allow any traffic ...
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Snort Based Firewall
I have not worked with SNORT much or done too much research on this but it sounds possible.
If I setup a server and run snort on it. Would it then be possible to route ALL my traffic through it like ...
- 6,691
4
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How To Enable URL Filtering With Just Squid & C-ICAP
Before I posted this question, I read several set up guides online, the squid docs, c-icap docus, and also the ICAP RFC (3507). Unfortunately, the documentation for SQUID and C-ICAP does not provide ...
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Filtering inbound traffic without knowing the destination subnet
I have a linux machine configured as a router with two interfaces facing LAN A and LAN B. I want to filter traffic passing from LAN A to LAN B (inbound traffic) using tcpdump, but I don't have the ...
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In tcpdump filtering is "port" redundant with "tcp"?
Why would one want to force "tcp" in a "tcpdump" filter when using "port", given port numbers are defined in TCP Headers (as opposed to IP)
In other words, is
tcpdump tcp and port 10000
synonym to
...
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937
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Block Google requests to 16k using pf firewall
I'd like to block access to Google search using PF after the threshold of 17500 requests (connection established) in 24h, from a host running FreeBSD 9.
What I came up with, after reading pf-faq is ...
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Domino 8.5.3: Modify Subject of Incoming Email
I am a newbie in managing and development for Domino. Recently, I have request from other teams at work to set up a filter or agent for incoming mail.
This is the requirement for the request:
Look ...
- 123
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How to configure linux routing/filtering to send packets out one interface, over a bridge and into another interface on the same box
I'm trying to test a ethernet bridging device. I have multiple ethernet ports on a linux box. I would like to send packets out one interface, say eth0 with IP 192.168.1.1, to another interface, say ...
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how to redirect to different URL? [closed]
I want to redirect the request to my machine to another URL[not IP address]. Is there any way to achieve this using iptables?.. or what is the way to achieve this?..
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Trying to colate click fraud evidence [closed]
We've recently had some very heavy and unexpected Google adwords spikes recently, so I'm trying to work through the server logs to find out if we've been subject to click fraud.
What I don't know is ...
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Iptables: Filtering only one interface on a router with multiple interfaces
The following are my firewall rules. eth1 is the WAN interface and all other are LAN interfaces. I want to filter INPUT and FORWARD chains only on eth1 (WAN interface). All other interfces need not be ...
- 1,553
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ProCurve ACL to prevent a subnet from leaving the switch
I have a single HP ProCurve 2610 in a remote location that is connected in with the rest of the network via SHDSL. There are two Layer-3 networks on this segment. ACLs are setup to deny one subnet (...
user62491
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Network Server Cabinets - How does the ventilation work?
Recently I've been looking at a range of network server cabinets with a mesh door at the rear. At the top of the cabinet are ceiling mounted fans with dust filters attached. These fans suck air out of ...
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Grep to find lines starting at pattern A until pattern B is matched
I have a log that contains bits like this:
[2012-04-16 15:16:43,827: DEBUG/PoolWorker-2] {'feed': {}, 'bozo': 1, 'bozo_exception': URLError(error(110, 'Connection timed out'),), 'entries': []}
[2012-...
- 5,910
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Block only part of a website
I have to imagine this is something that gets done in corporate and home networks, but I seem to be choosing bad search terms and haven't found an answer.
What I'm aiming to do is to block certain ...
- 103
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499
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Create filter type of folder/mailbox with Dovecot
Note: various people/cultures/background call these things differently, I will call them folders (as seen by a mail client) so most readers should understand.
The question is: with Dovecot is it ...
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How to disable Request Filtering for a specific website on IIS 7.5?
I have Request Filtering enabled in my IIS 7.5 and want to keep it that way, however, one site is basically just a proxy for some internal Java application and I'd like to disable Request Filtering ...
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Taking mail header order in consideration when filtering
My incoming mail server is checking SPF and adds a line in the headers accordingly. However sometimes previous servers are adding similar headers so there is multiple Received-SPF headers.
Received-...
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SMTP filtering proxy
I provide SSH shells to a lot of people and block port 25, 465 and so on by default via iptables to avoid that some people send spam messages.
Is there some kind of SMTP filtering proxy or -gateway ...
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242
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Windows Server Error Log Filter
How do I filter the Error Log (Windows Server 2008) for errors from one particular website hosted on the server? The site is using a unique Application Pool, and runs under the context of the ...
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How to get Comcast to stop blocking me? [closed]
I am a web developer running a demo server at home. My site is accessible from Atlanta as well as via my local cellular network. However, both a webserver I have in Utah and a webserver of a service ...
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IP Address filter 'before' http secured connections for protection against DDoS attacks? [duplicate]
One technique to protect against DDoS attacks is to monitor the number or requests per seconds coming from a given IP address. Of course, IP addresses can be fakes, but let's assume this is not an ...
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Filtering Live Messenger traffic by contacts
I am looking for a filtering solution to be able to filter Live Messenger traffic according "with who" they are chatting.
We use Messenger for work, but some of collegues gets a lot of "out of work" ...
- 269
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tc: packets filter
I need to drop UDP packets with specific UDP port number) on network interface (say eth0).
On my setup the interface eth0 is part of the bridge.
is it possible to do it using tc command?
if yes, how?
- 485
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Postfix filter outbound mail with allow-only rules
Essentially I only want to allow my CentOS box to send mail to specific addresses (with patterns if possible).
Such addresses would be:
[email protected]
user+*@gmail.com (in this instance I am using ...
- 857
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How do proxy servers filter https websites?
With my limited knowledge of HTTPS I started wondering: How do proxy servers filter HTTPS websites? I mean adding a proxy server is essentially a MITM attack which is what HTTPS was explicitly ...
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Outbound mail filtering against custom black list
Does anybody have any recommendations on how to filter outgoing email against a custom black list? For example, I have a list of around 400,000 email addresses that I do not want to send email to. ...
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How to write proper XPath query for filtering certain application pool errors in Windows 2008 R2 Event log ("Applications" section)
does someone know how to write proper XPath query for filtering certain application pool errors in Windows 2008 R2 Event log ("Applications" section)?
EventData in XML view from Application eventlog ...
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How to change the URL category of a website, so it's not filtered
This may be out of my control, but currently, when I try to access my website from work, I get this page:
Access Denied
Your system policy has denied access to the requested URL.
Monitoring of Your ...
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Windows Filtering Platform not turning off until admin logon. Win2008R2sp1
Just installed Windows Server 2008R2 SP1 to see if it would fix this problem, but it didn't.
Until an administrator logs onto the domain controller, there are many events that WFP blocked a connection ...
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how to filter NGINX access.log "generation"
Is there a way to tell NGINX NOT to generate certain information into access log?
I have Cometchat installed and polls every x miliseconds, and this is OK, but how can I skip those calls be written ...
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sendmail rules for filtering spam
Can anyone help me with constructing sendmail rules for limiting spam?
Assuming that name of my domain is my.domain.com, I want to use following rules:
If BOTH sender and recipient address is from my....
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How to reject messages to unknown user in sendmail cooperating with MS-Exchange?
I have an MS Exchange 2003 configured as a mail server for an organization. As this server is located in this organization internal network and I don't want to expose it directly over internet, I have ...
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How can i make settings in router to block certain websites during office hours?
My company wants to restrict access to some websites during office hours. How this can be achieved using Router or any other technique?
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1
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What is the best way to block IIS requests from a specific country?
I've been asked to do this before, but I just don't know an easy way to tell IIS (we're running 7.5) to block all requests coming from a specific country/countries. Does anyone know? I knew of an ...
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Cisco ASA 5505 (8.05): asymmetrical group-policy filter on an L2L IPSec tunnel
I'm trying to find a way to setup a bi-directional L2L IPSec tunnel, but with differing group-policy filter ACLs for both sides.
I have the following filter ACL setup, applied, and working on my ...
- 14k
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Using m0n0wall in a VM for testing
I'd like to use m0n0wall inside a (VirtualBox) VM to play about with and see what it can do. Ultimately the goal is to have a number of virtual machines connected to a internal virtual network which ...
- 2,964
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Wireshark Display Filter protocol==TLSV1? (and PacketLength)
What would the filter expression be to just select the protocols where the protocol = TLSV1?
Something obvious like protocol == "TLSV1" or TCP.protocol == "TLSV1" is apparently not the right way.
...
- 1,333
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Need help with IP filtering and port forwarding
I have a static IP assigned to me by my ISP. I want to access a server running tomcat in our network from outside the LAN. Can any one give a few pointers, to what I need to do, and where to start ...
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Is it safe to ublock 587, SMTP submission port?
We have had problems before with SMTP port 25 (smtp) - some PC's were sending spam mail throught that port.
So we blocked that and only allowed only outgoing smtp servers we needed.
Howerver, i read ...
- 1,605
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Anti spam on Exchange 2007
I have just installed an exchange 2007 server. We are not using the edge server role. In Exchange 2007 are there enabled any out the box anti spam features? I can't see antyhing relating to anti spam ...
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Monitoring VPN users on my network
My company runs filters on contents available for browsing and I have to check if everyone is respecting the browsing policies. Recently I have spotted some users activate OpenVPN on their ...
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Data from a table in 1 DB needed for filter in different DB
I have a Win Form, Data Entry, application that uses 4 seperate Data Bases. This is an occasionally connected app that uses Merge Replication (SQL 2005) to stay in Sync. This is working just fine. ...
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Custom Filter in cPanel to Auto-Delete Emails with Russian Characters [closed]
I get a lot of spam to my email account from Russia. The emails themselves (name, subject, body) are in Russian and I was hoping to create a custom filter in cPanel (not in SpamAssassin but in cPanel ...
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How to set up server side message filters on sendmail/Imap server?
I currently have message filters set up in Thunderbird to put incoming email messages from various sources in appropriate server side folders. Since I envision starting to use a smartphone (Android) ...
Steve Prior
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How can I view log files in Linux and apply custom filers while viewing?
(I asked this question on stackoverflow but it might be better off here...)
I need to read through some gigantic log files on a Linux system. There's a lot of clutter in the logs. At the moment I'm ...
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Is it possible to port filter traffic over an outbound VPN connection?
Summary
Is it possible to filter what traffic can go through a VPN, controlled by the sysadmins in outbound (source) network .. not the inbound (destination) network's sysadmins?
Details
I'm currently ...
- 6,608
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SQL Merge Replication - Filter Sets
I have a "working" Replication Set in SQL 2005 that we use in house to our users at remote branches on SQL Express 2005. I want to apply a filter to our biggest Set to help minimize the bandwidth ...