Cisco :: Blocking Servers From Internet

Jan 12, 2012

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.

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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.

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Cisco Firewall :: ASA5505 - Blocking Internal Traffic Between 2 Servers

Oct 25, 2012

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.

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Linksys Wireless Router :: E4200 Blocking ISP Unmetered Sites / Servers

Jul 2, 2011

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.

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Nvidia Is Blocking My Internet

Nov 8, 2011

NVIDIA is blocking my internet connecting on only one of my computers and it has become somewhat of an urgent situation. I need to know how to get rid of it immediately. I have no idea what NVIDIA is. I was using my computer and going on the internet without a problem and 3 hours later this issue came about.

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AVG Is Blocking Internet Access?

Aug 1, 2011

Every time I turn on my PC I find I have lost internet access. I can fix this by going to Network Connections, disabling the connection, re-enabling the connection.But why does this happen? I notice the the following:1. When I look at the Network Connection it shows "Local Area Connection, Network 3, Unidentified network, Realtek PCIe....."2. When I re-enable the network AVG tells me the Firewall settings have changed - Directly Connected to Network has been set to Unidentified..... etc

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Blocking Individuals Internet Access?

May 21, 2012

I am setting up a network for a friend with children. He has a BT homehub and wants to block their access between certain hours. However by using access control on BT it tells you that you have been blocked which is no good as he cannot feign ignorance and pretend he doesn't know what to do (as his kids will pester him to fix it). He therefore wants to block their access more discreetly (as if the internet was generally timing out or messing up instead of actually displaying they have access control).Is there a way to block an individual's access on the router without blocking everybody either on a timer or manually done each time (thus if there isn't a way of automating it he can at least do this manually each time).

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Vista Blocking Program From Internet?

Jan 24, 2011

I have a program Eric's Movie Data Base. It needs to go to IMDB to update very often.On my XP there is no problem, it connects quickly every timeHowever I need to run it on my laptop with vista with a wireless connection.Using Vista the program EMDB runs ok but cannot connect to the IMDB site via the program.I have checked and firewall is off, and UAC also.As xp has no problem ( both are usin the same router) I can only assume Vista is blocking it.The request is reaching my modem, and the router is not using any port forwarding.Error message in log isFIREWALL replay check (1 of 24): Protocol: ICMP Src ip: 94.64.148.77 Dst ip: 58.166.25.196 Type: Destination Unreachable Code: Port UnreacheableI have contacted the developer who says the program is using the IE engine.

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Cisco :: Blocking Internet Connection During Specific Time

Sep 7, 2012

How to block Internet Connection during specific time.for example i want to block everyday between 8am to 12nn, then 1pm to 5pm.what are the options and better to achieve this kind of policy??

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Providing Intranet Access While Blocking Internet?

Feb 20, 2012

Small business with 4 computers networked together and sharing coommon software programs and files. Need to block one of the computers access to the Internet whille allowing the other 3 access to the Internet. Is this possible/ If so How?

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Internet Connection Accidentally Blocking Certain Sites

Nov 26, 2012

I am currently at university, using a Local Area Connection. I am aware that the university blocks torrenting which I am totally fine with though when I try to carry out a process such as posting a large entry on Livejournal.com or Dreamwidth.org, it tries to load for a couple seconds and then fails. When in Google Chrome, it says that it's "uploaded 100%" but then I receive "Error 7 (net::ERR_TIMED_OUT): The operation timed out.". When using Internet Explorer, it either doesn't load at all or I get the standard "Internet Explorer cannot display the webpage". When I try to carry out a different process on dreamwidth and livejournal (editing my layout), Chrome tells me "Error 101 (net::ERR_CONNECTION_RESET): The connection was reset." These issues always happen no matter when I try them.

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D-Link 855 Router - Blocking Internet Access?

Aug 6, 2012

Im using d-link 855 router to block internet to certain machines, using access control within dlink and then in putting the ip for the right machines. But it seems the machines keep changing the IP adresses everything they boot thus getting internet access the next day.

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Cisco Routers :: WRVS4400N Internet Access Policies Blocking Everything

Aug 8, 2011

After updating the firmware of my WRVS4400N from V 2.0.1.3 to 2.0.2.1 all traffic was blocked for all machines, even some not included in the list of PCs. As the log was showing that all traffic was blocked by access policies, I disabled the only rule I had (blocking access to some sites to some MAC address list) and everything worked fine.I tried creating a new, simpler rule but after activation it blocked again all traffic for all the LAN.After many trials, I decided to roll back to the previous V2.0.1.3 which solved this problem.

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Cisco Routers :: Sending All Traffic To VPN And Blocking Internet On Other End - RV042

Dec 28, 2012

I wonder if I can have a RV042 VPN Tunnel to a RV082, and in the RV082 block all traffic to the internet that comes form the PCs that are behind the RV042.
 
Remote PC -> RV042 -> VPN -> RV082 -> RV082 Firewall (block internet traffice, allow intranet traffic)

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Dell :: V525w / Wireless Printer Blocking Internet?

Sep 26, 2012

I bought a Dell V525w printer. Once I set it up, my computers can no longer access the internet! I have looked everywhere and cannot find an answer. The only way I can make the internet work again is to power down the printer, and reset the router. But, as soon as I turn the printer on, the internet conenction is lost again. This is very frustrating. I need to know how to fix this as soon as possible.I have a Netgear WNDR3700v3 wireless router. My computer is an Alienware X51.

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Cisco Routers :: RV110W Internet Access Policy Website Blocking?

Sep 30, 2011

I have an RV110W running firmware version 1.0.1.6 and I am trying to figure out how to enable website blocking in the Internet Access Policy screen. The Add Row button is grayed out in that section, as are the associated checkboxes.
 
Is there something else one needs to do to enable this feature?
 
If I set a name etc. at the top, and click save, it tells me "You must at least set a website blocking or PCs rule," so it is not the case that one has to save some information before continuing!

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Security / Firewalls :: Antivirus Blocking Internet / Can't Browse Web Via Firefox

Sep 15, 2011

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.

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Belkin Routers :: N450 - Blocking Internet But Allowing LAN Access?

Nov 16, 2012

Belkin N450 Router. I want to restrict Internet access completely but allow LAN access to a shared drive for a particular computer on my wireless network. I have gone into the web based set up page and under access controls have enabled and added this computer to the list. I have blocked http, https, ftp and nntp. I don't know if this is enough. The reason I am asking is that I am in Iraq right now and I want to allow my fellow team members access to the wireless for using viber on their iphones but one cat even though he has hardwired internet wants to continuously suck off my wireless for his computer to download stuff since I paid for faster internet. I am trying to do this quietly and still allow him access to the shared drives on the LAN. Sooooo If I block him just outright will he still have access to the drives or do I need to pick and choose like I did above and if I need to pick and choose did I miss anything other then pop3 email and imap?

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Cisco Firewall :: RV120W - URL Blocking / Limit Internet Access To 1 Or 2 Specific Websites

Aug 18, 2011

My company has a peer to peer network of 10 personal computers without a server.  Operating systems from Windows XP to Vista.  I've recently installed a Cisco RV120W Wireless-N VPN Firewall.  It's configured in DHCP Server Mode with printers/copiers that have static IPs below the DHCP range.
 
I'm having a problem with certain stations being used for personal networking, shopping, etc. during business hours.  Consequently I would like to limit internet access on these stations.  However, some internet access is required because of online database software that's an integral part of our business.  I've been reading in the Administration Guide about URL Blocking.  Would it be possible to give static IPs to certain stations and then limit their internet access to 1 or 2 specific websites?
 
FYI, I've read about the Trusted Domains and Blocked Keywords but cannot quite understand how to parley this into the solution I need.

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Sharing :: Server Disconnects From Internet Blocking Access To Shared Folders

Aug 19, 2012

I have a small network running in my language academy which is causing me some issues. We have a server running Win XP with two folders, one for the teachers which is password protected and the other for the students which doesn't require a password. Up until two days it has been working well. However now the server keeps disconnecting from the internet quite randomly which stops us from connecting to the shared folders.

I've noticed that a caution icon appears next to the ethernet icon in the task bar when this problems occurs on the server. I have tried to right click and choose the repair option but it tell me that it cannot resolve the ip address. In some cases rebooting the server resolves the issues but in many case it doesn't.

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Cisco Firewall :: Mask DMZ Servers From Private Servers And LAN ASA 5520

Jun 11, 2013

We are planning to split the Private servers from the DMZ Servers and configure an additional Interface and segment for this purpose.
 
Private Servers Segment: 192.168.4.0/24 (there is no DHCP all servers' IPs are statically configured)
DMZ Segment: 192.168.3.0/24 (This is a future deployment)
LAN Segment: 172.17.0.0/16
 
Both, Private Servers and DMZ Servers are in a collocation as well as the ASA5520. There are multiple Branch offices that uses subnets within the 172.17.0.0/16 Network and they are connected to the ASA5520 via Metro-E.
 
I do not know if this is possible but what I want to do is this:
 
In order to avoid the change of internal DNS records I want to mask the DMZ servers with a Private Server IP when a Private server or LAN host wants to access it like this:
 
The FTP server in the DMZ has the IP address: 192.168.3.100. But when a PC from the LAN wants to reach the FTP server it should points to its old IP: 192.168.4.100. This way the PC sends a packet to the ftp.corporate.net (192.168.4.100) the ASA recieves the packet and translate it to the (192.168.3.100) and send it out through the DMZ Interface.
 
Also if the Private Servers wants to reach the same FTP the ASA will act like a proxy-ARP and send the paquet to the DMZ by means of the translation of the IP.

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Cisco WAN :: 6513 Servers Unable To Communicate With DC-1 Servers

Mar 20, 2012

I Have exented vlan 120,121 from DC-1 to DC-2,the DC-1 and DC-2 are connected using L2 Trunk over fiber terminated on Cisco 6513 on both site ,the distance around 40 Km  ,on the DC-2 i just assigned server-1 TO VLAN 120 while server-2 in vlan 121 ,but these servers unable to communicate neither with DC-1 Servers or betwen them locally on DC-2 ,pls note that the servers at dc-2 rely on DC-1 for routing.

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Servers :: How To Hook-up Ps3 To Internet Without PC

Jan 18, 2011

I do not own a pc and i would like to have internet connection for my ps3 so i can play games online. i do not know how to get internet without a pc.

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Servers :: Connect 5 Servers Together To Create A Private Network?

Apr 16, 2011

i'm trying to connect 5 servers together to create a private network.Each server has a network of it's own and i'm trying to make all 5 servers communicate with each other to share and search data simultaneously..

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Servers :: Internet Explorer Will Not Let To Open A Web?

Apr 21, 2011

I have always been using internet explorer and have never had any trouble opening up web sites. However this week trouble has started when using a stock trading site. When I open up the "Home Page" of IG Index this opens in full no problem. But when I then click on the tab to open up the trading section section this opens but not fully. The tool bar across the top but the main body of the page, the frame, is blank. I have tried internet options, deleting history etc and disc clean up but to no avail. Have also tried system restore but no good. Have soken ti IG Index and they suggest changing from Internet Explorer to Firefox as my browser. I dont really want to do this as I am not a computer buff and I can see all sorts of complications arising if I change to Fire Fox

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Servers :: Can't Connect To Internet Via Proxy

Jan 3, 2011

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).

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Servers :: Internet Options Have Not Been Opened?

Aug 26, 2011

Whenever I click on "Tools," then "Internet Options" in Internet Explorer I get the following message: "This operation has been cancelled due to restrictions in effect on this computer. Please contact your systems administrator

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Servers :: Internet Connected Won't Open

May 16, 2012

acer one 722. have internet connection to a wifi service. click IE on task bar & the router is recognized @ the top bar but wont open.

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Servers :: Laptop Is Not Connecting To Internet?

Feb 3, 2011

laptop is not connecting to internet? what can i do?

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Servers :: Internet Cuts For Few Seconds?

Sep 5, 2012

i have fire wall install pf sense software and sever using ops 2008 R2.sever is ruining ghost convey, and my internet always goes off and on for few seconds

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Servers :: Internet Explorer Could Not Connect?

Sep 3, 2011

Some time ago while of facebook i clicked on a link supposedly forwarded from a friend and some sort of flash player virus file was downloaded to my laptop. I proceeded to run a MAlwarebyte scan of the laptop and deleted the downloaded file.However, since then I've been unable to connect to facebook via Internet Eplorer or Goggle Chrome, and I'm getting the message 'Oops! Internet Explorer.

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Servers :: How To Change Smtp To Get On Internet

Dec 11, 2011

How can i change smtp to get on internet

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Internet Speed For Hosting Servers?

Aug 23, 2011

So 3 days from now im getting comcast cable....12 mbps download and 3mbps upload (something like that)I want to know if I can host servers in online games such as... modern warfare 2 and black ops...pretty much any popular first person shooter. I noticed that every game I play I am not host and I am lagging...my current connection is 2.5 MBPS download and 0.4 MBPS upload.

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