Dansguardian...

iknaza
(usa Slackware)

Enviado em 29/10/2014 - 09:41h

Seguinte... O dansguardian é essa carroça mesmo??? Quando eu ativo ele tudo fica lento... já tentei de todo jeito mudar os childrens dele mas nada adianta... segue abaixo meu squid, firewall e o dans...


dansguardian:

# DansGuardian config file for version 2.12.0.0

# **NOTE** as of version 2.7.5 most of the list files are now in dansguardianf1.conf


# Web Access Denied Reporting (does not affect logging)
#
# -1 = log, but do not block - Stealth mode
# 0 = just say 'Access Denied'
# 1 = report why but not what denied phrase
# 2 = report fully
# 3 = use HTML template file (accessdeniedaddress ignored) - recommended
#
reportinglevel = 3

# Language dir where languages are stored for internationalisation.
# The HTML template within this dir is only used when reportinglevel
# is set to 3. When used, DansGuardian will display the HTML file instead of
# using the perl cgi script. This option is faster, cleaner
# and easier to customise the access denied page.
# The language file is used no matter what setting however.
#
languagedir = '/usr/local/share/dansguardian/languages'

# language to use from languagedir.
language = 'ptbrazilian'

# Logging Settings
#
# 0 = none 1 = just denied 2 = all text based 3 = all requests
loglevel = 2

# Log Exception Hits
# Log if an exception (user, ip, URL, phrase) is matched and so
# the page gets let through. Can be useful for diagnosing
# why a site gets through the filter.
# 0 = never log exceptions
# 1 = log exceptions, but do not explicitly mark them as such
# 2 = always log & mark exceptions (default)
logexceptionhits = 2

# Log File Format
# 1 = DansGuardian format (space delimited)
# 2 = CSV-style format
# 3 = Squid Log File Format
# 4 = Tab delimited
logfileformat = 1

# truncate large items in log lines
# 0 = no truncating (default)
#maxlogitemlength = 0

# anonymize logs (blank out usernames & IPs)
#anonymizelogs = off


# Syslog logging
#
# Use syslog for access logging instead of logging to the file
# at the defined or built-in "loglocation"
#logsyslog = off

# Log file location
#
# Defines the log directory and filename.
#loglocation = '/usr/local/var/log/dansguardian/access.log'


# Statistics log file location
#
# Defines the stat file directory and filename.
# Only used in conjunction with maxips > 0
# Once every 3 minutes, the current number of IPs in the cache, and the most
# that have been in the cache since the daemon was started, are written to this
# file. IPs persist in the cache for 7 days.
#statlocation = '/usr/local/var/log/dansguardian/stats'


# Network Settings
#
# the IP that DansGuardian listens on. If left blank DansGuardian will
# listen on all IPs. That would include all NICs, loopback, modem, etc.
# Normally you would have your firewall protecting this, but if you want
# you can limit it to a certain IP. To bind to multiple interfaces,
# specify each IP on an individual filterip line.
# You can have the same IP twice so long as it has a different port.
filterip =

# the ports that DansGuardian listens to. Specify one line per filterip
# line. You can specify different authentication mechanisms per port but
# only if the mechanisms can co-exist (e.g. basic/proxy auth can't)
filterports = 8080
#filterports = 8081

# the ip of the proxy (default is the loopback - i.e. this server)
proxyip = 189.10.3.154

# the port DansGuardian connects to proxy on
proxyport = 3128

# Whether to retrieve the original destination IP in transparent proxy
# setups and check it against the domain pulled from the HTTP headers.
#
# Be aware that when visiting sites which use a certain type of round-robin
# DNS for load balancing, DG may mark requests as invalid unless DG gets
# exactly the same answers to its DNS requests as clients. The chances of
# this happening can be increased if all clients and servers on the same LAN
# make use of a local, caching DNS server instead of using upstream DNS
# directly.
#
# See http://www.kb.cert.org/vuls/id/435052
# on (default) | off
#!! Not compiled !! originalip = on

# accessdeniedaddress is the address of your web server to which the cgi
# dansguardian reporting script was copied. Only used in reporting levels 1 and 2.
#
# This webserver must be either:
# 1. Non-proxied. Either a machine on the local network, or listed as an exception
# in your browser's proxy configuration.
# 2. Added to the exceptionsitelist. Option 1 is preferable; this option is
# only for users using both transparent proxying and a non-local server
# to host this script.
#
# Individual filter groups can override this setting in their own configuration.
#
accessdeniedaddress = 'http://YOURSERVER.YOURDOMAIN/cgi-bin/dansguardian.pl'

# Non standard delimiter (only used with accessdeniedaddress)
# To help preserve the full banned URL, including parameters, the variables
# passed into the access denied CGI are separated using non-standard
# delimiters. This can be useful to ensure correct operation of the filter
# bypass modes. Parameters are split using "::" in place of "&", and "==" in
# place of "=".
# Default is enabled, but to go back to the standard mode, disable it.
nonstandarddelimiter = on



# Banned image replacement
# Images that are banned due to domain/url/etc reasons including those
# in the adverts blacklists can be replaced by an image. This will,
# for example, hide images from advert sites and remove broken image
# icons from banned domains.
# on (default) | off
usecustombannedimage = on
custombannedimagefile = '/usr/local/share/dansguardian/transparent1x1.gif'


#Banned flash replacement
usecustombannedflash = on
custombannedflashfile = '/usr/local/share/dansguardian/blockedflash.swf'



# Filter groups options
# filtergroups sets the number of filter groups. A filter group is a set of content
# filtering options you can apply to a group of users. The value must be 1 or more.
# DansGuardian will automatically look for dansguardianfN.conf where N is the filter
# group. To assign users to groups use the filtergroupslist option. All users default
# to filter group 1. You must have some sort of authentication to be able to map users
# to a group. The more filter groups the more copies of the lists will be in RAM so
# use as few as possible.
filtergroups = 1
filtergroupslist = '/usr/local/etc/dansguardian/lists/filtergroupslist'



# Authentication files location
bannediplist = '/usr/local/etc/dansguardian/lists/bannediplist'
exceptioniplist = '/usr/local/etc/dansguardian/lists/exceptioniplist'

# Per-Room blocking definition directory
# A directory containing text files containing the room's name followed by IPs or ranges
# Think of it as bannediplist on crack
perroomblockingdirectory = '/usr/local/etc/dansguardian/lists/bannedrooms/'

# Show weighted phrases found
# If enabled then the phrases found that made up the total which excedes
# the naughtyness limit will be logged and, if the reporting level is
# high enough, reported. on | off
showweightedfound = on

# Weighted phrase mode
# There are 3 possible modes of operation:
# 0 = off = do not use the weighted phrase feature.
# 1 = on, normal = normal weighted phrase operation.
# 2 = on, singular = each weighted phrase found only counts once on a page.
#
# IMPORTANT: Note that setting this to "0" turns off all features which
# extract phrases from page content, including banned & exception
# phrases (not just weighted), search term filtering, and scanning for
# links to banned URLs.
#
weightedphrasemode = 2



# Positive (clean) result caching for URLs
# Caches good pages so they don't need to be scanned again.
# It also works with AV plugins.
# 0 = off (recommended for ISPs with users with disimilar browsing)
# 1000 = recommended for most users
# 5000 = suggested max upper limit
# If you're using an AV plugin then use at least 5000.
urlcachenumber = 1000
#
# Age before they are stale and should be ignored in seconds
# 0 = never
# 900 = recommended = 15 mins
urlcacheage = 900



# Cache for content (AV) scan results as 'clean'
# By default, to save CPU, files scanned and found to be
# clean are inserted into the clean cache and NOT scanned
# again for a while. If you don't like this then choose
# to disable it.
# on = cache results; do not re-scan
# off = do not cache; always re-scan
# (on|off) default = on.
scancleancache = on



# Smart, Raw and Meta/Title phrase content filtering options
# Smart is where the multiple spaces and HTML are removed before phrase filtering
# Raw is where the raw HTML including meta tags are phrase filtered
# Meta/Title is where only meta and title tags are phrase filtered (v. quick)
# CPU usage can be effectively halved by using setting 0 or 1 compared to 2
# 0 = raw only
# 1 = smart only
# 2 = both of the above (default)
# 3 = meta/title
phrasefiltermode = 2

# Lower casing options
# When a document is scanned the uppercase letters are converted to lower case
# in order to compare them with the phrases. However this can break Big5 and
# other 16-bit texts. If needed preserve the case. As of version 2.7.0 accented
# characters are supported.
# 0 = force lower case (default)
# 1 = do not change case
# 2 = scan first in lower case, then in original case
preservecase = 0

# Note:
# If phrasefiltermode and preserve case are both 2, this equates to 4 phrase
# filtering passes. If you have a large enough userbase for this to be a
# worry, and need to filter pages in exotic character encodings, it may be
# better to run two instances on separate servers: one with preservecase 1
# (and possibly forcequicksearch 1) and non ASCII/UTF-8 phrase lists, and one
# with preservecase 0 and ASCII/UTF-8 lists.



# Hex decoding options
# When a document is scanned it can optionally convert %XX to chars.
# If you find documents are getting past the phrase filtering due to encoding
# then enable. However this can break Big5 and other 16-bit texts.
# off = disabled (default)
# on = enabled
hexdecodecontent = off



# Force Quick Search rather than DFA search algorithm
# The current DFA implementation is not totally 16-bit character compatible
# but is used by default as it handles large phrase lists much faster.
# If you wish to use a large number of 16-bit character phrases then
# enable this option.
# off (default) | on (Big5 compatible)
forcequicksearch = off



# Reverse lookups for banned site and URLs.
# If set to on, DansGuardian will look up the forward DNS for an IP URL
# address and search for both in the banned site and URL lists. This would
# prevent a user from simply entering the IP for a banned address.
# It will reduce searching speed somewhat so unless you have a local caching
# DNS server, leave it off and use the Blanket IP Block option in the
# bannedsitelist file instead.
reverseaddresslookups = off



# Reverse lookups for banned and exception IP lists.
# If set to on, DansGuardian will look up the forward DNS for the IP
# of the connecting computer. This means you can put in hostnames in
# the exceptioniplist and bannediplist.
# If a client computer is matched against an IP given in the lists, then the
# IP will be recorded in any log entries; if forward DNS is successful and a
# match occurs against a hostname, the hostname will be logged instead.
# It will reduce searching speed somewhat so unless you have a local DNS server,
# leave it off.
reverseclientiplookups = off


# Perform reverse lookups on client IPs for successful requests.
# If set to on, DansGuardian will look up the forward DNS for the IP
# of the connecting computer, and log host names (where available) rather than
# IPs against requests.
# This is not dependent on reverseclientiplookups being enabled; however, if it
# is, enabling this option does not incur any additional forward DNS requests.
logclienthostnames = off


# Build bannedsitelist and bannedurllist cache files.
# This will compare the date stamp of the list file with the date stamp of
# the cache file and will recreate as needed.
# If a .processed file exists for an item (e.g. domain/URL) list, then that
# will be used instead, if it is up to date (i.e. newer than the unprocessed
# list file).
# This can increase process start speed on slow computers.
# Fast computers do not need this option.
# on | off, default = on
createlistcachefiles = on


# Prefer cached list files
# If enabled, DansGuardian will always prefer to load ".processed" versions of
# list files, regardless of their time stamps relative to the original
# unprocessed lists. This is not generally useful unless you have a specific
# list update process which results in - for example - up-to-date, pre-sorted
# ".processed" list files with dummy unprocessed files.
# on | off, default = off
prefercachedlists = off



# POST protection (web upload and forms)
# does not block forms without any file upload, i.e. this is just for
# blocking or limiting uploads
# measured in kibibytes after MIME encoding and header bumph
# use 0 for a complete block
# use higher (e.g. 512 = 512Kbytes) for limiting
# use -1 for no blocking
#maxuploadsize = 512
#maxuploadsize = 0
maxuploadsize = -1



# Max content filter size
# Sometimes web servers label binary files as text which can be very
# large which causes a huge drain on memory and cpu resources.
# To counter this, you can limit the size of the document to be
# filtered and get it to just pass it straight through.
# This setting also applies to content regular expression modification.
# The value must not be higher than maxcontentramcachescansize
# The size is in Kibibytes - eg 2048 = 2Mb
# use 0 to set it to maxcontentramcachescansize
maxcontentfiltersize = 256



# Max content ram cache scan size
# This is only used if you use a content scanner plugin such as AV
# This is the max size of file that DG will download and cache
# in RAM. After this limit is reached it will cache to disk
# This value must be less than or equal to maxcontentfilecachescansize.
# The size is in Kibibytes - eg 10240 = 10Mb
# use 0 to set it to maxcontentfilecachescansize
# This option may be ignored by the configured download manager.
maxcontentramcachescansize = 2000



# Max content file cache scan size
# This is only used if you use a content scanner plugin such as AV
# This is the max size file that DG will download
# so that it can be scanned or virus checked.
# This value must be greater or equal to maxcontentramcachescansize.
# The size is in Kibibytes - eg 10240 = 10Mb
maxcontentfilecachescansize = 20000


# Proxy timeout
# Set timeout between the Proxy and DansGuardian
# Min 20 - Max 30
proxytimeout = 20


# File cache dir
# Where DG will download files to be scanned if too large for the
# RAM cache.
filecachedir = '/tmp'



# Delete file cache after user completes download
# When a file gets save to temp it stays there until it is deleted.
# You can choose to have the file deleted when the user makes a sucessful
# download. This will mean if they click on the link to download from
# the temp store a second time it will give a 404 error.
# You should configure something to delete old files in temp to stop it filling up.
# on|off (defaults to on)
deletedownloadedtempfiles = on



# Initial Trickle delay
# This is the number of seconds a browser connection is left waiting
# before first being sent *something* to keep it alive. The
# *something* depends on the download manager chosen.
# Do not choose a value too low or normal web pages will be affected.
# A value between 20 and 110 would be sensible
# This may be ignored by the configured download manager.
initialtrickledelay = 20



# Trickle delay
# This is the number of seconds a browser connection is left waiting
# before being sent more *something* to keep it alive. The
# *something* depends on the download manager chosen.
# This may be ignored by the configured download manager.
trickledelay = 10



# Download Managers
# These handle downloads of files to be filtered and scanned.
# They differ in the method they deal with large downloads.
# Files usually need to be downloaded 100% before they can be
# filtered and scanned before being sent on to the browser.
# Normally the browser can just wait, but with content scanning,
# for example to AV, the browser may timeout or the user may get
# confused so the download manager has to do some sort of
# 'keep alive'.
#
# There are various methods possible but not all are included.
# The author does not have the time to write them all so I have
# included a plugin systam. Also, not all methods work with all
# browsers and clients. Specifically some fancy methods don't
# work with software that downloads updates. To solve this,
# each plugin can support a regular expression for matching
# the client's user-agent string, and lists of the mime types
# and extensions it should manage.
#
# Note that these are the matching methods provided by the base plugin
# code, and individual plugins may override or add to them.
# See the individual plugin conf files for supported options.
#
# The plugins are matched in the order you specify and the last
# one is forced to match as the default, regardless of user agent
# and other matching mechanisms.
#
downloadmanager = '/usr/local/etc/dansguardian/downloadmanagers/fancy.conf'
##!! Not compiled !! downloadmanager = '/usr/local/etc/dansguardian/downloadmanagers/trickle.conf'
downloadmanager = '/usr/local/etc/dansguardian/downloadmanagers/default.conf'



# Content Scanners (Also known as AV scanners)
# These are plugins that scan the content of all files your browser fetches
# for example to AV scan. The options are limitless. Eventually all of
# DansGuardian will be plugin based. You can have more than one content
# scanner. The plugins are run in the order you specify.
# This is one of the few places you can have multiple options of the same name.
#
# Some of the scanner(s) require 3rd party software and libraries eg clamav.
# See the individual plugin conf file for more options (if any).
#
#!! Not compiled !! contentscanner = '/usr/local/etc/dansguardian/contentscanners/clamdscan.conf'
#!! Not compiled !! contentscanner = '/usr/local/etc/dansguardian/contentscanners/avastdscan.conf'
#!! Not compiled !! contentscanner = '/usr/local/etc/dansguardian/contentscanners/kavdscan.conf'
#!! Not compiled !! contentscanner = '/usr/local/etc/dansguardian/contentscanners/icapscan.conf'
#!! Not compiled !! contentscanner = '/usr/local/etc/dansguardian/contentscanners/commandlinescan.conf'



# Content scanner timeout
# Some of the content scanners support using a timeout value to stop
# processing (eg AV scanning) the file if it takes too long.
# If supported this will be used.
# The default of 60 seconds is probably reasonable.
contentscannertimeout = 60



# Content scan exceptions
# If 'on' exception sites, urls, users etc will be scanned
# This is probably not desirable behavour as exceptions are
# supposed to be trusted and will increase load.
# Correct use of grey lists are a better idea.
# (on|off) default = off
contentscanexceptions = off



# Auth plugins
# These replace the usernameidmethod* options in previous versions. They
# handle the extraction of client usernames from various sources, such as
# Proxy-Authorisation headers and ident servers, enabling requests to be
# handled according to the settings of the user's filter group.
# Multiple plugins can be specified, and will be used per port in the order
# filterports are listed.
#
# If you do not use multiple filter groups, you need not specify this option.
#
#authplugin = '/usr/local/etc/dansguardian/authplugins/proxy-basic.conf'
#authplugin = '/usr/local/etc/dansguardian/authplugins/proxy-digest.conf'
#!! Not compiled !! authplugin = '/usr/local/etc/dansguardian/authplugins/proxy-ntlm.conf'
#authplugin = '/usr/local/etc/dansguardian/authplugins/ident.conf'
authplugin = '/usr/local/etc/dansguardian/authplugins/ip.conf'



# Re-check replaced URLs
# As a matter of course, URLs undergo regular expression search/replace (urlregexplist)
# *after* checking the exception site/URL/regexpURL lists, but *before* checking against
# the banned site/URL lists, allowing certain requests that would be matched against the
# latter in their original state to effectively be converted into grey requests.
# With this option enabled, the exception site/URL/regexpURL lists are also re-checked
# after replacement, making it possible for URL replacement to trigger exceptions based
# on them.
# Defaults to off.
recheckreplacedurls = off



# Misc settings

# if on it adds an X-Forwarded-For: <clientip> to the HTTP request
# header. This may help solve some problem sites that need to know the
# source ip. on | off
forwardedfor = off


# if on it uses the X-Forwarded-For: <clientip> to determine the client
# IP. This is for when you have squid between the clients and DansGuardian.
# Warning - headers are easily spoofed. on | off
usexforwardedfor = off


# if on it logs some debug info regarding fork()ing and accept()ing which
# can usually be ignored. These are logged by syslog. It is safe to leave
# it on or off
logconnectionhandlingerrors = on



# Fork pool options

# If on, this causes DG to write to the log file whenever child processes are
# created or destroyed (other than by crashes). This information can help in
# understanding and tuning the following parameters, but is not generally
# useful in production.
logchildprocesshandling = off

# sets the maximum number of processes to spawn to handle the incoming
# connections. Max value usually 250 depending on OS.
# On large sites you might want to try 180.
maxchildren = 120


# sets the minimum number of processes to spawn to handle the incoming connections.
# On large sites you might want to try 32.
minchildren = 8


# sets the minimum number of processes to be kept ready to handle connections.
# On large sites you might want to try 8.
minsparechildren = 4


# sets the minimum number of processes to spawn when it runs out
# On large sites you might want to try 10.
preforkchildren = 6


# sets the maximum number of processes to have doing nothing.
# When this many are spare it will cull some of them.
# On large sites you might want to try 64.
maxsparechildren = 32


# sets the maximum age of a child process before it croaks it.
# This is the number of connections they handle before exiting.
# On large sites you might want to try 10000.
maxagechildren = 500


# Sets the maximum number client IP addresses allowed to connect at once.
# Use this to set a hard limit on the number of users allowed to concurrently
# browse the web. Set to 0 for no limit, and to disable the IP cache process.
maxips = 0



# Process options
# (Change these only if you really know what you are doing).
# These options allow you to run multiple instances of DansGuardian on a single machine.
# Remember to edit the log file path above also if that is your intention.

# IPC filename
#
# Defines IPC server directory and filename used to communicate with the log process.
ipcfilename = '/tmp/.dguardianipc'

# URL list IPC filename
#
# Defines URL list IPC server directory and filename used to communicate with the URL
# cache process.
urlipcfilename = '/tmp/.dguardianurlipc'

# IP list IPC filename
#
# Defines IP list IPC server directory and filename, for communicating with the client
# IP cache process.
ipipcfilename = '/tmp/.dguardianipipc'

# PID filename
#
# Defines process id directory and filename.
#pidfilename = '/usr/local/var/run/dansguardian.pid'

# Disable daemoning
# If enabled the process will not fork into the background.
# It is not usually advantageous to do this.
# on|off (defaults to off)
nodaemon = off

# Disable logging process
# on|off (defaults to off)
nologger = off

# Enable logging of "ADs" category blocks
# on|off (defaults to off)
logadblocks = off

# Enable logging of client User-Agent
# Some browsers will cause a *lot* of extra information on each line!
# on|off (defaults to off)
loguseragent = off

# Daemon runas user and group
# This is the user that DansGuardian runs as. Normally the user/group nobody.
# Uncomment to use. Defaults to the user set at compile time.
# Temp files created during virus scanning are given owner and group read
# permissions; to use content scanners based on external processes, such as
# clamdscan, the two processes must run with either the same group or user ID.
#daemonuser = 'nobody'
#daemongroup = 'nobody'

# Soft restart
# When on this disables the forced killing off all processes in the process group.
# This is not to be confused with the -g run time option - they are not related.
# on|off (defaults to off)
softrestart = off

# Mail program
# Path (sendmail-compatible) email program, with options.
# Not used if usesmtp is disabled (filtergroup specific).
#!! Not compiled !!mailer = '/usr/sbin/sendmail -t'

#SSL certificate checking path
#Path to CA certificates used to validate the certificates of https sites.
#sslcertificatepath = '/etc/ssl/certs/'

#SSL man in the middle
#CA certificate path
#Path to the CA certificate to use as a signing certificate for
#generated certificates.
#cacertificatepath = '/home/stephen/dginstall/ca.pem'

#CA private key path
#path to the private key that matches the public key in the CA certificate.
#caprivatekeypath = '/home/stephen/dginstall/ca.key'

#Cert private key path
#The public / private key pair used by all generated certificates
#certprivatekeypath = '/home/stephen/dginstall/cert.key'

#Generated cert path
#The location where generated certificates will be saved for future use.
#(must be writable by the dg user)
#generatedcertpath = '/home/stephen/dginstall/generatedcerts/'

#Generated link path = ''
#The location where symlinks to certificates will be created.
#(must be writable by the dg user)
#generatedlinkpath = '/home/stephen/dginstall/generatedlinks/'


firewall:
#! /bin/bash
case "$1" in
'start')

echo "Iniciando o Firewall"

### Variaveis de Ambiente ###
IPT=/sbin/iptables
MPB=/sbin/modprobe

# Interfaces
EXT=eth1
INT=eth0

# Definicao da rede interna
REDE_INTERNA=192.168.0.0/24

### Carregando os Modulos ###
$MPB ip_conntrack
$MPB ip_conntrack_ftp
$MPB ip_tables
$MPB ipt_state
$MPB iptable_nat
$MPB ip_nat_ftp
$MPB ipt_limit
$MPB ipt_LOG
$MPB ipt_REJECT

echo 1 > /proc/sys/net/ipv4/ip_forward
echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter
echo 1 > /proc/sys/net/ipv4/tcp_syncookies

### Desativando logs do martian source
echo 0 > /proc/sys/net/ipv4/conf/all/log_martians

### Definindo as Politicas de bloqueio
$IPT -F
$IPT -t nat -F
$IPT -X
$IPT -t nat -X
$IPT -P INPUT ACCEPT
$IPT -P OUTPUT ACCEPT
$IPT -P FORWARD ACCEPT
$IPT -t nat -P PREROUTING ACCEPT
$IPT -t nat -P POSTROUTING ACCEPT
$IPT -t nat -P OUTPUT ACCEPT


### Portas Liberadas para a Placa Externa (ETH0) ###
# DNS
$IPT -A INPUT -p tcp --dport 53 -j ACCEPT
$IPT -A INPUT -p udp --dport 53 -j ACCEPT

# HTTP
$IPT -A INPUT -p tcp --dport 80 -j ACCEPT
$IPT -A INPUT -p udp --dport 80 -j ACCEPT

# HTTPS
$IPT -A INPUT -p tcp --dport 443 -j ACCEPT
$IPT -A INPUT -p udp --dport 443 -j ACCEPT

# SSH
$IPT -A INPUT -p tcp --dport 22 -j ACCEPT
$IPT -A INPUT -p udp --dport 22 -j ACCEPT

echo "Iniciando as regras de FORWARD..."
### REGRAS SEGURANCA Placa de Rede Externa ###
$IPT -A FORWARD -i $EXT -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPT -A FORWARD -i $EXT -p tcp --syn -m limit --limit 1/s -j ACCEPT

## Protecao contra port scanners ocultos ##
$IPT -A FORWARD -i $EXT -p icmp --icmp-type echo-request -m limit --limit 1/s -j ACCEPT

## Protecao para Ataques Brute Force no SSH
$IPT -A INPUT -p tcp --syn --dport 22 -m recent --name sshattack --set
$IPT -A INPUT -p tcp --dport 22 --syn -m recent --name sshattack --rcheck --seconds 60 --hitcount 3 -j LOG --log-prefix 'SSH REJECT: '
$IPT -A INPUT -p tcp --dport 22 --syn -m recent --name sshattack --rcheck --seconds 60 --hitcount 3 -j REJECT --reject-with tcp-reset
$IPT -A FORWARD -p tcp --syn --dport 22 -m recent --name sshattack --set
$IPT -A FORWARD -p tcp --dport 22 --syn -m recent --name sshattack --rcheck --seconds 60 --hitcount 3 -j LOG --log-prefix 'SSH REJECT: '
$IPT -A FORWARD -p tcp --dport 22 --syn -m recent --name sshattack --rcheck --seconds 60 --hitcount 3 -j REJECT --reject-with tcp-reset

# SSH EXTERNO
$IPT -A INPUT -s 192.168.100.242/24 -d 0/0 -p tcp --dport 22 -j ACCEPT
$IPT -A INPUT -s 187.6.251.2/32 -d 0/0 -p tcp --dport 22 -j ACCEPT
$IPT -A INPUT -s 0/0 -d 0/0 -p tcp --dport 22 -j DROP

## LIBERANDO IPS
$IPT -t nat -A PREROUTING -s 192.168.0.10 -p tcp --dport 8080 -j ACCEPT

### Bloqueio de Alguns Servicos ###

### Bloqueio de whatssapp
$IPT -I INPUT -i eth1 -s 50.22.0.0/15 -j DROP
$IPT -I INPUT -i eth1 -s 173.192.0.0/15 -j DROP
$IPT -I INPUT -i eth1 -s 174.36.0.0/15 -j DROP
$IPT -I INPUT -i eth1 -s 184.172.0.0/15 -j DROP
$IPT -I INPUT -i eth1 -s 50.22.255.70 -j DROP
$IPT -I INPUT -i eth1 -s 108.16.174.2 -j DROP
$IPT -I INPUT -i eth1 -s 173.192.222.186 -j DROP
$IPT -I INPUT -i eth1 -s 200.149.119.99 -j DROP
$IPT -I INPUT -i eth1 -s 50.22.255.76 -j DROP

$IPT -I INPUT -i eth1 -s 172.245.40.210 -j DROP
### Bloqueio de Jabber externo e Google Talk ###
#$IPT -A FORWARD -s 0/0 -d xxx.xxx.xxx.xxx/32 -p tcp --dport 5222 -j ACCEPT
#$IPT -A FORWARD -s 0/0 -d 0/0 -p tcp --dport 4442:4460 -j DROP
#$IPT -A FORWARD -s 0/0 -d 0/0 -p tcp --dport 5222 -j DROP

## Bloqueio de maquina por mac
iptables -A FORWARD -m mac --mac-source c0:a0:bb:17:5f:7b -j DROP
## Bloqueio de alguns sites
$IPT -I INPUT -i eth1 -m string --string "anx.batanga.net" --algo bm -j DROP
$IPT -I INPUT -i eth1 -m string --string "ib.adnxs.com" --algo bm -j DROP
$IPT -I INPUT -i eth1 -m string --string "ads.deliads.com" --algo bm -j DROP
$IPT -I INPUT -i eth1 -m string --string "inmotionhosting.com" --algo bm -j DROP
$IPT -I INPUT -i eth1 -m string --string "g.adnxs.com" --algo bm -j DROP
$IPT -I INPUT -i eth1 -m string --string "fastvideo.eu" --algo bm -j DROP
$IPT -I INPUT -i eth1 -m string --string "ekonet.info" --algo bm -j DROP
$IPT -I INPUT -i eth1 -m string --string "ipprd00.laserappraiserservices.com" --algo bm -j DROP
$IPT -I INPUT -i eth1 -m string --string "filmpertutti2.com/" --algo bm -j DROP

$IPT -A FORWARD -s $REDE_INTERNA -m string --string "facebook.com" --algo bm -j DROP
$IPT -A FORWARD -s $REDE_INTERNA -m string --string "twitter.com" --algo bm -j DROP
$IPT -A FORWARD -s $REDE_INTERNA -m string --string "instagram.com" --algo bm -j DROP
$IPT -A FORWARD -s $REDE_INTERNA -m string --string "youtube.com" --algo bm -j DROP

## liberando serviços
$IPT -t nat -A POSTROUTING -s 0/0 -o eth1 -d 187.6.251.2/24 -j MASQUERADE
$IPT -t nat -A POSTROUTING -s 0/0 -o eth1 -d 200.103.102.251/24 -j MASQUERADE
echo "Iniciando as regras de Mangle..."

### Chain OUTPUT ###
# Define minimo de espera para os servicos ftp, DNS, isto
# dara uma melhor sensacao de conexao em tempo real e diminuira o tempo
# de espera para conexoes que requerem resolucao de nomes.
$IPT -t mangle -A OUTPUT -o $EXT -p tcp --dport 53 -j TOS --set-tos 0x10
$IPT -t mangle -A OUTPUT -o $EXT -p udp --dport 53 -j TOS --set-tos 0x10
$IPT -t mangle -A OUTPUT -o $EXT -p tcp --dport 1494 -j TOS --set-tos 0x10
$IPT -t mangle -A OUTPUT -o $EXT -p udp --dport 1494 -j TOS --set-tos 0x10
$IPT -t mangle -A OUTPUT -o $EXT -p tcp --dport 1495 -j TOS --set-tos 0x10
$IPT -t mangle -A OUTPUT -o $EXT -p udp --dport 1495 -j TOS --set-tos 0x10
$IPT -t mangle -A OUTPUT -o $EXT -p tcp --dport 1496 -j TOS --set-tos 0x10
$IPT -t mangle -A OUTPUT -o $EXT -p udp --dport 1496 -j TOS --set-tos 0x10

echo "Carregando as regras de Roteamento NAT"
### Mascaramento para os sites locais ###
$IPT -t nat -A POSTROUTING -s $REDE_INTERNA -p tcp -d 0/0 -j MASQUERADE

### Redirecionamento SQUID
$IPT -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080

### FAZENDO O PROXY TRANSPARENTE ###
# $IPT -t nat -A PREROUTING -s 0/0 -i eth0 -d 0/0 -p tcp --dport 80 -j DNAT --to-destination 10.0.1.254:82

# MASCARANDO TODAS AS REDES
# se utilizar a opcao abaixo sem ao menos o proxy transparente
# libera tudo e pra todos ips da rede
# $IPT -t nat -A POSTROUTING -o $EXT -p tcp -j MASQUERADE

###########################################################################################################################

## Bloqueio de Proxy Externo ###
$IPT -A FORWARD -s 0/0 -d 0/0 -p tcp --dport 81 -j DROP
$IPT -A FORWARD -s 0/0 -d 0/0 -p tcp --dport 8000 -j DROP

echo "Processo de protecao da Rede carregado com sucesso!!!"
;;
'stop')

$IPT -F
$IPT -t nat -F
$IPT -X
$IPT -t nat -X

;;

*)
echo "usage $0 start|stop" ;;

esac

squid:

acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1

# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl localnet src 192.168.0.0/24 # RFC1918 possible internal network

acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT

#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
http_access allow manager localhost
http_access deny manager

# Deny requests to certain unsafe ports
http_access deny !Safe_ports

# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports

# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost

#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#

#
# Controle de banda
#
#delay_pools 1

#delay_class 1 1
#delay_parameters 1 30000/30000 30000/30000
#delay_access 1 allow localnet

acl palavrasproibidas url_regex -i "/ikfirewall/palavrasproibidas.txt"
acl sitespermitidos url_regex -i "/ikfirewall/dominiospermitidos.txt"
acl extensoesbloqueadas url_regex -i "/ikfirewall/extensoes.txt"
acl sitesbloqueados url_regex -i "/ikfirewall/dominiosbloqueados.txt"

# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access deny extensoesbloqueadas all
http_access deny palavrasproibidas all
http_access deny sitesbloqueados all

http_access allow all
http_access allow localhost

# And finally deny all other access to this proxy
http_access deny all

# Squid normally listens to port 3128
http_port 3128 intercept
#http_port 3128 transparent

# We recommend you to use at least the following line.
hierarchy_stoplist cgi-bin ?

# Uncomment and adjust the following to add a disk cache directory.
cache_dir ufs /cache 3000 16 256
access_log /log/access.log squid

# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid

# Add any of your own refresh_pattern entries above these.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
visible_hostname ikfirewall.br

follow_x_forwarded_for allow localhost
dns_nameservers 8.8.8.8 8.8.4.4