Security / Firewalls :: Blocking All Proxy Servers
Jun 24, 2011
My son is constantly on social networking sites whilst he ought to be revising for his exams. I have tried blocking his websites from the router but this blocks everyones access to the sites. How can I prevent just him from accessing these sites through the router without interfering with my elder kids acess to the sites? Also i would like to know how to block all proxy servers as he is always using these to bypass my restrictions.
I access the internet from my company�s LAN, which has a restrictive firewall, so I cannot request the admin to open any ports manually for me. Hence I use a software called your-freedom. This proxy software supports both http as well as socks 4 and 5 proxy (by entering the proxy IP 127.0.0.1 (localhost) and Port 8080 for http proxy OR 1080 for Socks Proxy), and I have successfully been using web browsers and some other softwares that support proxy/ allow proxy info to be entered to login/ connect to the internet. Your-Freedom also supports port forwarding.However, the softwares I intend to use do not have any options to enter proxy methods or proxy ports (as far as I have noticed). I have tried to proxify these 2 softwares using softwares such as SocksCap and Free Cap, but either they don�t work, or my settings in proxifying are not correct. I believe I will have to do port forwarding or proxify the softwares, but have been unable to do so in the correct manner.
Following is the info on the 2 softwares:
1.NOW Trading terminal:[FONT=Times New Roman]Normally when I start the NOW or Zerodha software, the software starts and I get a login screen, but under firewall conditions, I get the initial Splash screen but then the software stops with the error: [b][u]NOW Initialisation failed for Interactive Engine << os error>>.
2.PowerIndia Bulls:The software is written in Java and starts with a batch file (PowerIndiabulls.bat) located in C:UsersDEFAULT_USERNAMEAppD..... I converted this batch file to .exe (with battoexe software) and then ran it through a proxifying software. The .exe start properly without proxifying software but not under proxifying environment. Basically the software needs to connect to the internet using Port 443. I am also expected to keep ports 443, 41599 and 59598 open. software's requirement is available at Indiabulls Securities: Indiabulls Securities is a leading capital market company offering securities broking and advisory services, depository services, equity research services to its clients in India. (item no. 5).To confirm, while the software is unable to connect through port 443, you will get an error message: "Connection to Login Server could not be established" when you try to login with any random Username and Password.To know that the software is able to connect properly, you will get an error: "This User ID is not enabled to be used with this product".
i created a blockyoutube policy , when someone types youtube.com, system tells him he cannot access the website. But when a client types https:// he gains normal access .
I want to setup a proxy server and also to create a group policy on proxy that will take effect on two ou's of staff and executives (150 plus pcs) on the executives ou I want the gpo to be only be effective when dey re in the office and non effective when they are outside the office and which to use their own personal internet modem.
I am having some trouble with the antivirus software.I had AVG antivirus installed but I thought it was causing some problems.So I unistalled it and downloaded a trial version of Bitdefender.Got it installed and found out I can't browse the web via Firefox. So I was trying to go through all the settings in Bitdef. but no luck.Uninstalled BD, rebooted the comp, still no internet. I did clean the registry and spyware as well.But the weird bit is that somehow I can browse the internet using old IE8 (64bit only. 32bit is not working?).I was also trying to re-install AVG but it could not complete as the connection with their server was blocked.It seems like something is blocking everything apart from 64bit ver. of IE8.
I am tying to block a certain website on my WRT54GL Linksys router.I have put in MAC adresses on the Access Restrictions tab but its still not working.
I am having some challenges on my DMZ network.My servers and Cisco Switches in the DMZ are picking the mac address of the Firewall(Cisco ASA).I have put some static arp entries on the Firewall and switches but the servers and users on the DMZ are still receiving the mac address of the Firewall.How can i stop the Firewall from changing the mac addresses of the devices on the network.My ASA is a 5520 and i have 2960Switches.
Iam trying to add servers to Tor (torproject.org) to remove country restrictions on videos from different websites such as bbc.com and i don't know how to do it. I got the server but I don't know what do do next?
Is it true that the FCC is investigating the Pogo game site because of poor security? Is Java the cause of this problem?I'm very leery of getting on the Pogo site because I've been told that my computer could get a virus and crash.
I'm new to IT, and have been put in charge of managing our servers hile my boss is on vacation.We currently have a Sonicwall Network Security Appliance that handles our Firewall/VPN and have web content filtering set in place.I have a user who belongs to 2 CFS policy groups that we have set up. I've double checked with Active Directory, and he is a member of both groups.
This person SHOULD have access to Job searches/ and Restaurants,but receives a "content blocked" message on his browser.It appears to me that the settings in Sonicwall are correct, as well with AD member groups.
I am trying to connect to a Security-enabled wireless netowork. I have the key. My problem is that I can't seem to figure out how to enter it. When I try to connect I open the "view available networks"window. I see the network name and it shows a strong signal (all 5 green bars).
I want to install Microsoft Security Essential on my PC, but I am not sure which download I need. One says amd64 and the other is x86. I am using windows xp 32bit.
how to trace IP when proxy is used.someone I know is playing a prank that might cause my marriage to break.That person uses proxy with many different IP and also a loopback. does anyone know how to trace the IP even with the above is used.
I have an issue here, I need to connect to various anonymus proxy servers, the ip's of which can be freely found on the web. I've tried doing this from a broadband connected computer and it's ok, but the thing is that when I try doing this from a computer that is tied to o router, it doesn't work at all.
I have windows xp home and the last few days a security installation has kept trying to install ie: "Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package (KB2538242) (update 1 of 1)..."
I have a linux(fedora) which i use as a proxy. the proxy then connect to the router. the proxy also serves as my mail server (i use postfix). Problem is, since yesterday i discovered thta i cannot access the internet for any machine connected via the proxy (and any dhcp-assigned machines). As a result, even the webmail is not accessible from any machine.When i tried, i changed some computers so that they connect directly to the router -and they work fine for the internet. Problem is, I am still not able to access webmail.What could be the problem with the proxy.?(NB Postfix is running and http too is running).
I have a server subnet that for the most part needs to be able to access the internet for patches, updates, etc. My SysAd wants 2 of the servers to not have access. The server subnet is attached to a 3750 and connects to an ASA to reach the outside world. Would it be better to setup an ACL on the SVI of the server subnet or on the outbound direction of the outside interface on the ASA.
When i access a url with http, it works fine. But with https it dosen't work, and get the message on the firefox as "The proxy server is refusing connections Firefox is configured to use a proxy server that is refusing connections. Check the proxy settings to make sure that they are correct. Contact your network administrator to make sure the proxy server is working.
I have a cisco ASA5505, it runs a wide site to site VPN network and has 4 servers connected to it
10.50.15.4 > fileserver 10.50.15.5 > domain controller (exchange) 10.50.15.6 > terminal server 10.50.15.7 > terminal server
Now yesterday i removed 10.50.15.6 and replaced it with a new terminal server with the same ip address, ever since the ASA is blocking traffic between it and the domain controller (example)
2Oct 27 201214:51:0510600710.50.15.655978DNSDeny inbound UDP from 10.50.15.6/55978 to 10.50.15.5/53 due to DNS Query What has me baffled is the only thing different between today and yesterday is the new server is windows server 2008 and the old one was windows server 2003. The new server has the same LAN ip address as the old one to make the changeover seamless for the users.
why all the sudden my ASA has decided to block the traffic between those machines? all the other machines can talk to it fine just not the domain controller, and seeing that this is a terminal server naturally you can see the problem i face!
this router has worked flawlessly for 2 years now without any config changes and i cant work out why its blocking traffic between those 2 machines.
I am on a 200GB/month 100mbit cable plan with Telstra, and we have a number of sites/servers which we can download from which do not count towards our monthly download limit. Normally there would be 3-4GB of usage per day which was 'unmetered' but since upgrading to the E4200 router, everything that should be 'unmetered' is not being recognised and is being counted towards my monthly download limit - in other words, all traffic through the router is counted as chargable downloads.
Im not sure how it all works, but the E4200 router is definitely blocking something out... if i plug directly into the modem or use my previous router (WRT160N) everything works perfectly.
I opened my iTunes program today and noticed a roommate's MP3 files were picked up on my network. I think the name of the program is Rocket Tube MP3. Anyway, I came on here because our computers use a Wi-Fi internet connection and I was wondering how much of my web activity (history, cookies, temporary files, etc) he could see from my laptop if his computer was a desktop downstairs. He's very tech-savvy (a former IT guy) and I don't want him snooping through my personal records.
We are a non-profit organization that is heavily reliant on interns that use their own laptops a lot here. My concern is they come in and connect to our wireless network with no supervision or anything else. I am worried they will introduce a virus, trojan, or something to our network. What the best way to keep them from introducing unwanted malware from a thumb drive, virus in email, or something to that effect shy of standing over them while they install and run an antivirus software?
I have problem with the Lan-to-Lan VPN tunnel.the VPN working fines since 9 months ago without any problems.Suddenly got the problem!,In last two days we faced problem the VPN down.in first time the problem in phase-2.. but after that in phase-1... in latest no data packet received to their side.
I am looking for some resources on what steps would be involved in configuring a Cisco ASA 5500 when obtaining a new ISP. Since our static IP will be changing with the new ISP, just need to know what configurations changes will need to take place. We currently have a working config with DSL, but are switching to cable. We are using a DMZ configuration, and are going to try using ASDM first since that should be easier
There are three Win 7 laptops on the LAN trying to connect to the ASA5500 Firewall. They generate a Severity Level 3 alert and try the same port three times then move to the next numerical port and try that three times. Is this a malicious Hack.
