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  • Firewall - Preventing Content Theft & Rogue Crawlers

    - by drodecker
    Our websites are being crawled by content thieves on a regular basis. We obviously want to let through the nice bots and legitimate user activity, but block questionable activity. We have tried IP blocking at our firewall, but this becomes to manage the block lists. Also, we have used IIS-handlers, however that complicates our web applications. Is anyone familiar with network appliances, firewalls or application services (say for IIS) that can reduce or eliminate the content scrapers?

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  • Exchange Server Address Resolving to Random String

    - by William
    I am running Exchange 2013 on Windows Server 2012 R2. When I add my exchange account to Outlook, it seems to work perfectly (sending/receiving email, syncing everything), but when I open the account settings it has the following set as the Server: [email protected] I would have expects this to be: mail.domain.com since this is the DNS A record pointing to the IP of my server. Where is it getting this server name?

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  • Amazon EC2 open ports for security groups present in other accounts

    - by rahul
    Hi, Assume, I am having 2 ec2 accounts (say A and B), both have different list of security groups. Now I want to open a particular port (say 80) for an instance running in account A, to account B. ie, I want to only allow account B instances, to access account A's 80 port. Could any one update me, is there a way to do this.?? Additionally, may I access account A's instance from account B's instance by using its private ip address/host name ?? Thanks in Advance,

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  • Configure server on network to analyze traffic

    - by Strajan Sebastian
    I have the following network: http://i.stack.imgur.com/rapkH.jpg I want to send all the traffic from the devices that connect to the 192.168.0.1 router to the 192.168.10.1 router(and eventually to the Internet), by passing through the server and an additional router. Almost 2 days have passed and I can't figure what is wrong. While searching on the Internet for some similar configuration I found some articles that are somehow related to my needs, but the proposed solutions don't seem to work for me. This is a similar article: iptables forwarding between two interface I done the following steps for the configuration process: Set static IP address 192.168.1.90 for the eth0 on the server from the 192.168.1.1 router Set static IP address 192.168.0.90 for the eth1 on the server from the 192.168.0.1 router Forwarded all the traffic from 192.168.0.1 router to the server on eth1 interface witch seems to be working. The router firmware has some option to redirect all the traffic from all the ports to a specified address. Added the following rules on the server(Only the following, there aren't any additional rules): iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE iptables -A FORWARD -i eth1 -o eth0 -m state -–state RELATED,ESTABLISHED -j ACCEPT iptables -A FORWARD -i eth0 -o eth1 -j ACCEPT I also tried changing iptables -A FORWARD -i eth1 -o eth0 -m state -–state RELATED,ESTABLISHED -j ACCEPT into iptables -A FORWARD -i eth1 -o eth0 -j ACCEPT but still is not working. After adding the following to enable the packet forwarding for the server that is running CentOS: echo 1 /proc/sys/net/ipv4/ip_forward sysctl -w net.ipv4.ip_forward = 1 After a server restart and extra an extra check to see that all the configuration from above are still available I tried to see again if I can ping from a computer connected to 192.168.0.1/24 LAN the router from 192.168.1.1 but it didn't worked. The server has tshark(console wireshark) installed and I found that while sending a ping from a computer connected to 192.168.0.1 router to 192.168.1.1 the 192.168.0.90(eth1) receives the ping but it doesn't forward it to the eth0 interface as the rule tells: iptables -A FORWARD -i eth1 -o eth0 -j ACCEPT and don't now why this is happening. Questions: The iptables seem that don't work as I am expecting. Is there a need to add in the NAT table from iptables rules to redirect the traffic to the proper location, or is something else wrong with what I've done? I want to use tshark to view the traffic on the server because I think that is the best at doing this. Do you know something better that tshark to capture the traffic and maybe analyze it?

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  • How to route all network traffic for vlan through a proxy server on SRX

    - by user112570
    I'm trying configure an SRX router to automatically forward all traffic through a proxy server i have in the USA. I have created a separate vlan and configured the proxy but not sure how i can route all traffic through this. The aim of this task is create a test network which makes users appear in the location of the proxy server. (with the external ip address of the proxy) Is this possible and how should i do this. Am i approaching this the right way? Thanks

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  • Cisco Unifies Communications Manager 7.0 - Installing Extension Mobility

    - by Lance
    I've setup extension mobility to the best of my ability, however, it its perplexing me... From the materials I've been reading I have established I need to have the following URL in place: http://IP/emapp/EmAppServlet?device=#DEVICENAME# If I try and browse to this in a web browser I can a blankHTML page. When my registered phone (CIPC) presses Services - Extension Mobility, it just sits there / delivers a blank page. I figure this isn't coincidence... Any ideas?

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  • amazon ec2 assign domain name

    - by user41999
    1.amazonaws doesnt provide dns service? 2.i can only assign static ip through ec2 so the only way to assign domain name is to use third party dns service? which do you all recommend? i need one that able to add SRV

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  • Asterisk server firewall script allows 2-way audio from incoming calls, but not on outgoing?

    - by cappie
    I'm running an Asterisk PBX on a virtual machine directly connected to the Internet and I really want to prevent script kiddies, l33t h4x0rz and actual hackers access to my server. The basic way I protect my calling-bill now is by using 32 character passwords, but I would much rather have a way to protect The firewall script I'm currently using is stated below, however, without the established connection firewall rule (mentioned rule #1), I cannot receive incoming audio from the target during outgoing calls: #!/bin/bash # first, clean up! iptables -F iptables -X iptables -t nat -F iptables -t nat -X iptables -t mangle -F iptables -t mangle -X iptables -P INPUT ACCEPT iptables -P FORWARD DROP # we're not a router iptables -P OUTPUT ACCEPT # don't allow invalid connections iptables -A INPUT -m state --state INVALID -j DROP # always allow connections that are already set up (MENTIONED RULE #1) iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT # always accept ICMP iptables -A INPUT -p icmp -j ACCEPT # always accept traffic on these ports #iptables -A INPUT -p tcp --dport 80 -j ACCEPT iptables -A INPUT -p tcp --dport 22 -j ACCEPT # always allow DNS traffic iptables -A INPUT -p udp --sport 53 -j ACCEPT iptables -A OUTPUT -p udp --dport 53 -j ACCEPT # allow return traffic to the PBX iptables -A INPUT -p udp -m udp --dport 50000:65536 -j ACCEPT iptables -A INPUT -p udp -m udp --dport 10000:20000 -j ACCEPT iptables -A INPUT -p udp --destination-port 5060:5061 -j ACCEPT iptables -A INPUT -p tcp --destination-port 5060:5061 -j ACCEPT iptables -A INPUT -m multiport -p udp --dports 10000:20000 iptables -A INPUT -m multiport -p tcp --dports 10000:20000 # IP addresses of the office iptables -A INPUT -s 95.XXX.XXX.XXX/32 -j ACCEPT # accept everything from the trunk IP's iptables -A INPUT -s 195.XXX.XXX.XXX/32 -j ACCEPT iptables -A INPUT -s 195.XXX.XXX.XXX/32 -j ACCEPT # accept everything on localhost iptables -A INPUT -i lo -j ACCEPT # accept all outgoing traffic iptables -A OUTPUT -j ACCEPT # DROP everything else #iptables -A INPUT -j DROP I would like to know what firewall rule I'm missing for this all to work.. There is so little documentation on which ports (incoming and outgoing) asterisk actually needs.. (return ports included). Are there any firewall/iptables specialists here that see major problems with this firewall script? It's so frustrating not being able to find a simple firewall solution that enabled me to have a PBX running somewhere on the Internet which is firewalled in such a way that it can ONLY allows connections from and to the office, the DNS servers and the trunk(s) (and only support SSH (port 22) and ICMP traffic for the outside world). Hopefully, using this question, we can solve this problem once and for all.

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  • Connect Linux machine to a windows active directory

    - by ssl
    Hi, I have a Linux machine which connected to an Active Directory on Windows server. I configured the NIC to get an IP from the DHCP (from the windows server) however, when I try to get nslookup on the Linux side it doesn't work (connection timeout), but on the same machine when I load windows and do nslookup it works. what can be wrong with my Linux configuration or Windows DNS configuration? note: I've configured my DNS to nonsecure and secure connections. 10x!

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  • Hotel like Wifi manager

    - by flpgdt
    Does anyone knows which are these systems that manages paid wifi networks and some hotels and airports? Even better, would anyone know a open/free project that would do or could be adapted to that end? The idea is simple, I want to let the network open at physical level so anyone can connect. After connected however, the clients would have access only to a specified page where they can logging in, and doing the necessary validations the router would allow these of those ports (or even everything) for his IP.

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  • ping preload is not permitted, what could be the reason?

    - by Brogrammer
    I am trying to ping one of my local host and checking CPU process to see how "Ping of death" attack behaves. I tried to ping my other PC which is in local network with 192.168.44.2 IP Address. I tried this, ping -l 5000 192.168.44.2 and I got error like this, ping: -l flag: Operation not permitted I am on MacOSX Lion. How can I remove this flag so machine can let me ping with preload? Thanks for any direction!

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  • ssh, "Last Login", `last` and OS X

    - by allentown
    I have hit the googles as much as I can on this, being specific to OS X, I am not finding an answer. Nothing is wrong, but curiosity levels are high. $ssh [email protected] Password: Last login: Wed Apr 7 21:28:03 2010 from my-laptop.local ^lonely tylenol^ Line 1 is my command line 2 is the shell asking for the password line 3 is where my question comes from line 4 comes out of /etc/motd I can find nothing in ~/ of an of the .bash* files that contains the string "Last Login", and would like to alter it. It performs some type of hostname lookup, which I can not determine. If I ssh to another host: $ssh [email protected] Last login: Wed Apr 7 21:14:51 2010 from 123-234-321-123-some.cal.isp.net.example hi there, you are on box 456 line 1 is my command line 2 is again, where my question comes from line 3 is from /etc/motd *The dash'd IP address is not reversed On this remote host, I have ~/.ssh and it's corresponding keys set up, so there was no password request Where is the "Last Login:" coming from, where does the date stamp come from, and most importantly, where does the hostname come from? While on [email protected] (box 456) $echo hostname remote.location.example456.com Or with dig, to make sure I have rDNS/PTR set up, for which I am not authoritative, but my ISP has correctly set... $dig -x 123.234.321.123 PTR remote.location.example456.com or $dig PTR 123.321.234.123.in-addr.arpa. +short remote.location.example456.com. my previous hostname used to be 123-234-321-123-some.cal.isp.net.example, which I set with hostname -s remote.location.example456.com, because it was obnoxious to see such a long name. That solves the value of $echo hostname which now returns remote.location.example456.com. Mac OS X, 10.6 is this case, does seem to honor: touch ~/.hushlogin If leave that file empty, I get nothing on the shell when I login. I want to know what controls the host resolution of the IP, and how it is all working. For example, running last reports a huge list of my logins, which have obtusely long hostnames, when they would be preferable to just be remote.location.example456.com. More confusing to me, reading the man page for wtmp and lastlog, it looks like lastlog is not used on OS X, /var/log/lastlog does not exist. Actually, none of these exist on 10.5 or 10.6: /var/run/utmp The utmp file. /var/log/wtmp The wtmp file. /var/log/lastlog The lastlog file. If I am to assume that the system is doing some kind of reverse lookup, I certainly do not know what it is, as it is not an accurate one.

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  • How to detect bots programatically

    - by Tom
    we have a situation where we log visits and visitors on page hits and bots are clogging up our database. We can't use captcha or other techniques like that because this is before we even ask for human input, basically we are logging page hits and we would like to only log page hits by humans. Is there a list of known bot IP out there? Does checking known bot user-agents work?

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  • php mysql cpanel high cpu usage

    - by Megahostzone Santu
    server taking high cpu usage load average: 108.87, 105.92, 85.82 netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n Reselt showing too much connect from server IP cpanel Process Manager showing 19.4 | 0.5 | /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --log-error=/var/lib/mysql/zebra546.serverstall.com.err --pid-file=/var/lib/mysql/zebra546.serverstall.com.pid 3.0 | 0.2 | /usr/bin/php /home/nowwatch/public_html/index.php

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  • How much it costs to run own hosting server

    - by Mirage
    I currently have VPS in my company and there i host about 20 websites. My company wants to set up server locally where they can host all websites rather using 3rd party VPS How it will cost e,g about upload ,download speed from data centre. Cpanel license IP registration, hardware , backups, electricity backups, Any other costs etc I would prefer centos

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  • IIS serving locally, but not remotely

    - by cinqoTimo
    There is a router between the modem and the server. In the admin panel, I use single-port forward Internal Port External Port IP 80 80 to 192.168.1.100 (Web Server) Basically, I'm not on site, and there is a local IT person who is supposed to have this ready. I saw the port forward page, and it was configured as described above. So my question is, the only other thing it could be is firewall software, or some other device on the network that their not telling me about, right?

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  • Internal Server Error on HTTPS SSL URL

    - by spike5792
    I am running cPanel/WHM on Apache server and have just installed an SSL certificate for a single domain. Domain/server is on a fixed dedicated IP address. I'm given the 'successfully installed' message when installing the SSL certificate, however when trying to visit the domain using https, the 500 Internal Server Error message appears: The server encountered an internal error or misconfiguration and was unable to complete your request. Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.

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  • Lighttpd rewite url from specific client when using proxy

    - by Edu
    I need to send all CGI request to another server so I decided to use it with proxy. The problem is that I need to send the client IP to the server so I did the following configuration: $HTTP["url"] =~ "cgi" { $HTTP["remoteip"] =~ "^(.*)$" { url.rewrite-once = ("^(.*)$" => "$1?myip=%1") } proxy.server = ( "" => ( ( "host" => "XXX.XXX.XXX.XXX", "port" => 80, ) ) ) } the problem is that its not rewriting the URL.

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  • nginx + apache subdomain redirection fault

    - by webwolf
    i really need your advice folks since i'm experiencing some troubles with nginx & apache2 subdomains configs first of all, there's a site (say, site.com) and two subdomains (links.site.com and shop.site.com) whose files are physically located at the same level of FS hierarchy as the site.com itself my hoster has configured both apache and nginx by my request, but it still doesn't work as it used to both of subdomains point to the main page of site.com for some unknown and implicit (for me) reason :( my assumption is that's happen because site.com record is placed first in both configs?!.. please help me solve this out! every opinion would be appreciated =) nginx.conf: server { listen 95.169.187.234:80; server_name site.com www.site.com ; access_log /home/www/site.com/logs/nginx.access.log main; location ~* ^.+\.(jpeg|jpg|gif|png|ico|css|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|js|swf|avi|mp3|mpg|mpeg|asf|vmw)$ { expires 30d; root /home/www/site.com/www; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # location ~ /\.ht { deny all; } location / { set $referer $http_referer; proxy_pass http://127.0.0.1:8080/; proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Referer $referer; proxy_set_header Host $host; client_max_body_size 10m; client_body_buffer_size 64k; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } } server { listen 95.169.187.234:80; server_name links.site.com www.links.site.com ; access_log /home/www/links.site.com/logs/nginx.access.log main; location ~* ^.+\.(jpeg|jpg|gif|png|ico|css|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|js|swf|avi|mp3|mpg|mpeg|asf|vmw)$ { expires 30d; root /home/www/links.site.com/www; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # location ~ /\.ht { deny all; } location / { set $referer $http_referer; proxy_pass http://127.0.0.1:8080/; proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Referer $referer; proxy_set_header Host $host; client_max_body_size 10m; client_body_buffer_size 64k; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } } server { listen 95.169.187.234:80; server_name shop.site.com www.shop.site.com ; access_log /home/www/shop.site.com/logs/nginx.access.log main; location ~* ^.+\.(jpeg|jpg|gif|png|ico|css|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|js|swf|avi|mp3|mpg|mpeg|asf|vmw)$ { expires 30d; root /home/www/shop.site.com/www; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # location ~ /\.ht { deny all; } location / { set $referer $http_referer; proxy_pass http://127.0.0.1:8080/; proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Referer $referer; proxy_set_header Host $host; client_max_body_size 10m; client_body_buffer_size 64k; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } } httpd.conf: # ServerRoot "/usr/local/apache2" PidFile /var/run/httpd.pid Timeout 300 KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 15 Listen 127.0.0.1:8080 NameVirtualHost 127.0.0.1:8080 ... #Listen *:80 NameVirtualHost *:80 ServerName www.site.com ServerAlias site.com UseCanonicalName Off CustomLog /home/www/site.com/logs/custom_log combined ErrorLog /home/www/site.com/logs/error_log DocumentRoot /home/www/site.com/www AllowOverride All Options +FollowSymLinks Options -MultiViews Options -Indexes Options Includes Order allow,deny Allow from all DirectoryIndex index.html index.htm index.php ServerName www.links.site.com ServerAlias links.site.com UseCanonicalName Off CustomLog /home/www/links.site.com/logs/custom_log combined ErrorLog /home/www/links.site.com/logs/error_log DocumentRoot /home/www/links.site.com/www AllowOverride All Options +FollowSymLinks Options -MultiViews Options -Indexes Options Includes Order allow,deny Allow from all DirectoryIndex index.html index.htm index.php ServerName www.shop.site.com ServerAlias shop.site.com UseCanonicalName Off CustomLog /home/www/shop.site.com/logs/custom_log combined ErrorLog /home/www/shop.site.com/logs/error_log DocumentRoot /home/www/shop.site.com/www AllowOverride All Options +FollowSymLinks Options -MultiViews Options -Indexes Options Includes Order allow,deny Allow from all DirectoryIndex index.html index.htm index.php # if DSO load module first: LoadModule rpaf_module modules/mod_rpaf-2.0.so RPAFenable On RPAFsethostname On RPAFproxy_ips 127.0.0.1 RPAFheader X-Forwarded-For Include conf/virthost/*.conf

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  • No internet connection with Cisco VPN

    - by Macros
    I have a VPN connection set up using the Cisco VPN Client, and whenever I connect to it I lose my internet connection. This is the first time I have used this software, all previous VPNs I have used have been setup through Windows and I can uncheck the 'use remote gateway' box in the TCP-IP properties box to get around this. Is there a similar option in the Cisco Client that I am missing? I am running on Windows 7 32 bit

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