Blocking access to internet from networked computers

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- Previous
  - 1
    - virtual Machine patch I installed 816093: Security Update Microsoft Virtual Machine (Microsoft VM) because I kept getting a virus whenevr I surfed the web, PC-Cillin said that installing this patch would resolve the problem but it has not... I am frustrated - I have all the critical windows xp updates, but am still plauged by this virus - I can delete it but whenevr I surf the net I get this viris again - JAVA_BYTVERIFY.A http://www.trendmicro.com/vinfo/virusencyclo/default5.asp? VName=JAVA_BYTVERIFY.A any help would be great Jason Tag: Blocking access to internet from networked computers Tag: 33137
  - 2
    - Spyware Hello, I'm trying to aid a friend who has a significant problem with spyware on his computer. He's running a Compaq Presario 7750 (I believe that's the number), 2ghz with 128 mb of RAM, running Windows XP home. He has a tendancy to download things from sources he doesn't know, and now his computer is barely functioning. Running Norton Antivirus shows nothing, and I've downloaded all the necessary windows updates for him. This is the nature of the problem. Whenever he attempts to open up Internet Explorer (he uses our school's network), his browser is hijacked by all this spyware, rendering the screen unusable unless he does ctrl-alt-del in order to clear away all of the popups and random websites that are maximized too far for him to close the normal way. Does Microsoft have any downloads or patches available that will scan and delete this spyware off of his computer? Thanks,Jade Tag: Blocking access to internet from networked computers Tag: 33123
  - 3
    - welchia worm removal tool Hello all, I am in search of a network tool that will tell me which computer on my network is infecting other computers with the welchia worm. Does this exist? Every time I introduce a new computer onto the network, it instantly gets infected. Any ideas? Thanks. Chris Tag: Blocking access to internet from networked computers Tag: 33121
  - 4
    - Help! VM won't install Ok, somehow, even though I had my machine completely patched with all the latest MS patches, I still managed to get hit with the WORM.NACHI.A and the PE_VALLA.A virus. This thing really tore up my Windows 2K machine. I finally have it up and running and now I am trying to fix all the little annoying things that are left behind by the virus' destruction (ie. Windows Installer coming up everytime I click on something and then going away by itself, etc...) First thing I am trying to do is get the latest Critical patches from the "Windows Update Site" I can install all of them except the VM. It keeps giving me this error when I try and install it. (The Microsoft VM you are attempting to install is a protected system component and can only be updated with a later release of the operating system or service pack). Any help, thanks. Tag: Blocking access to internet from networked computers Tag: 33119
  - 5
    - Russians invaded my system It seems an internet porn site has installed its own program on MY browser's SEARCH button. Russian search engines, russian porn banners, and even pop-under porn ads that refresh every minute or so have replaced my MSN search. My kids regularly use this search option, so I need to fix it now! How can I find the program, and destroy it? Tag: Blocking access to internet from networked computers Tag: 33110
  - 6
    - software update services Has anyone had luck with Software Update Services? I've got it loaded on a web server here, and I've configured our group policy to setup the automatic download on my client machines, but it's not doing ANYTHING! I can tell from my machine that the GPO is right, because it is set the way I chose and it greyed out so I can't modify it. However, I'm yet to receive a message regarding updates for my PC, yet, if I go to WindowsUpdate, I show 3 when I run the scan. This isn't working for anyone in my office. Now, my thinking is that this is caused by the fact that I am using this web server for my corporate intranet as well, but I've not found anything saying that I can't put SUS on a server that has other pages. Any help would be appreciated. Thank you! Chris Smith csmith@nutone.com Tag: Blocking access to internet from networked computers Tag: 33106
  - 7
    - ** READ THIS BEFORE POSTING - answers to frequently asked questions 2003.09.17 Before you post a question to a Microsoft.public.*.security newsgroup, note that your question may already be answered below: Answers to Top Frequently Asked Questions: http://securityadmin.info My question is not mentioned below. How do I get an answer immediately, with no waiting? http://securityadmin.info/faq.htm#moreinfo See also: http://www.google.com/groups?as_ugroup=microsoft.public.* See also: http://www.google.com/advanced_group_search See also: http://www.google.com I want to post a problem or question to the newsgroup. What info do I need to post in order to get a correct answer quickly? http://securityadmin.info/faq.htm#netiquette I have the RPC Blaster worm "virus," what do I do? http://www.microsoft.com/security/incident/blast.asp ALSO NOTE: www.grisoft.com is free antivirus, USE IT. My computer is giving RPC Remote Procedure Call messages. There is a TFTP message or file on my computer. My computer keeps locking up, and/or rebooting, or telling me that it will reboot in 1 minute. http://www.microsoft.com/security/incident/blast.asp ALSO NOTE: www.grisoft.com is free antivirus, USE IT. Where can I download the Blaster worm / RPC DCOM patch? http://windowsupdate.microsoft.com OR http://www.microsoft.com/technet/security/current.asp I just heard about a new Microsoft security patch update. Where can I get the patch? http://windowsupdate.microsoft.com OR http://www.microsoft.com/technet/security/current.asp I just installed a Microsoft security patch update, and now my computer is having problems. http://securityadmin.info/faq.htm#patchbroke I received an email from Microsoft / Microsoft Support / Microsoft Internet Security Center claiming to be a security patch [or comprehensive Internet Explorer update]. Is this a virus? http://securityadmin.info/faq.htm#microsoftemail ALSO NOTE: www.grisoft.com is free antivirus, USE IT. I received a virus email from a Microsoft email address. Who do I report this to? http://securityadmin.info/faq.htm#microsoftemail I'm having a problem caused by the JDBGMGR.EXE Teddy Bear "virus" hoax, or I want to replace this file. http://securityadmin.info/faq.htm#jdbgmgr I forgot my Windows logon password and can't log in. How do I reset it? http://securityadmin.info/faq.htm#password I have a problem or a question with a virus or with antivirus. http://securityadmin.info/faq.htm#virus NOTE: www.grisoft.com is free antivirus, USE IT. Why is Outlook Express blocking my attachments as "unsafe"? http://securityadmin.info/faq.htm#attachments How do I stop getting pop-up messages? Or adware? Or spyware? http://securityadmin.info/faq.htm#pop-ups How do I block people from viewing adult or objectionable content on a computer? http://securityadmin.info/faq.htm#contentfilter How do I block spam emails? http://securityadmin.info/faq.htm#spam There is a Content Advisor password blocking me from certain web sites. http://securityadmin.info/faq.htm#contentadvisor How do I delete an FTP folder that a hacker put on my computer and I cannot delete? http://securityadmin.info/faq.htm#ftpfolder Have I been hacked? What do I do if I've been hacked? http://securityadmin.info/faq.htm#hacked How do I re-secure a computer that has been hacked? http://securityadmin.info/faq.htm#re-secure How do I test or improve the security on my computer to avoid being hacked? http://securityadmin.info/faq.htm#harden How do I investigate a suspicious IP address that may be trying to hack me? http://securityadmin.info/faq.htm#trace How do I report a hacker? http://securityadmin.info/faq.htm#reporthacker How do I use a port scanner or vulnerability scanner to test my security? http://securityadmin.info/faq.htm#portscanner How do I encrypt my files and/or hard drive? http://securityadmin.info/faq.htm#encryption How do I get a firewall? IDS? http://securityadmin.info/faq.htm#firewall I want to use the IPSec filtering or IP filtering feature of Windows to block certain ports and have a problem or question. http://securityadmin.info/faq.htm#ipsec I have a problem or question with the XP ICF firewall. http://securityadmin.info/faq.htm#icf I have a problem or question with the IIS URLScan tool. http://securityadmin.info/faq.htm#urlscan How do I change the banner on my computer or server to hide what software version I'm using? http://securityadmin.info/faq.htm#banner How do I enable Windows Auditing to tell who logged into Windows or who accessed a file? http://securityadmin.info/faq.htm#auditing How do I inspect and disable programs that start up when Windows starts? http://securityadmin.info/faq.htm#startup How do I use RUNAS or let someone use RUNAS to run commands as administrator without having to type the password? http://securityadmin.info/faq.htm#runas How do I let non-administrator users run Defrag or change their IP address? http://securityadmin.info/faq.htm#runas My question is not mentioned above. How do I get an answer immediately, with no waiting? http://securityadmin.info/faq.htm#moreinfo See also: http://www.google.com/groups?as_ugroup=microsoft.public.* See also: http://www.google.com/advanced_group_search See also: http://www.google.com I want to post a problem or question to the newsgroup. What info do I need to post in order to get a correct answer quickly? http://securityadmin.info/faq.htm#netiquette Note that this is NOT a full list of all the questions answered in the FAQ. Chances are, your question has probably already been answered. The complete FAQ is at: http://securityadmin.info/faq.htm#contents I hope this is helpful. Feedback, suggestions and criticism regarding the FAQ are welcome and may be emailed to me. kind regards, Karl Levinson, CISSP, MCSE, MVP email: levinson_k@despammed.com Tag: Blocking access to internet from networked computers Tag: 33104
  - 8
    - attatchments i am unable to view anything that has an attatchmnet to it in my out look express....i click on the paper icon and it says that " oa is unable to open it" i think i did something to my configuration so that i couldn't open attatchments ....need help to undo my mistake Tag: Blocking access to internet from networked computers Tag: 33103
  - 9
    - Windows Security Update Hello, I am trying to find a solution for the following: Finally, I succeeded to do the Critical Updates yesterday but then I found out that my previous updates were not there anymore ( under Installation History). And also I have been getting several messages to innstall the Critical Updates and it's the same Security Update over and over again. Does anybody know why this is happening? How can I find and re-install the previous updates since they seem to have disappeared in the installation history? Thanking you in advance. Tag: Blocking access to internet from networked computers Tag: 33098
  - 10
    - Port 1033 (netinfo) port is open - what's it for and how do I close it I've run Shields up (www.grc.com) to test a clients new Wingate Pro firewall on Win2000 server sp4. Ideally I'd like all ports to be in full stealth mode. The problem is that I'm seeing Port 1033 which I'm told is local netinfo port open. Now I know what you're thinking 'netspy' - but I don't think so. Norton AV with latest definitions doesn't see it and neither does Mcafee's excellent online scan. I can't see what process might be using this port or what it's using it for. I'm downloading fport and I'll try that the next time I'm onsite - but I was hoping one of you kind folk would have an idea. Hopefully, Neil neilarmstrong1969@hotmail.com Ireland Tag: Blocking access to internet from networked computers Tag: 33097
  - 11
    - Port 1033 (netinfo) port is open - what's it for and how do I close it I've run Shields up (www.grc.com) to test a clients new Wingate Pro firewall on Win2000 server sp4. Ideally I'd like all ports to be in full stealth mode. The problem is that I'm seeing Port 1033 which I'm told is local netinfo port open. Now I know what you're thinking 'netspy' - but I don't think so. Norton AV with latest definitions doesn't see it and neither does Mcafee's excellent online scan. I can't see what process might be using this port or what it's using it for. I'm downloading fport and I'll try that the next time I'm onsite - but I was hoping one of you kind folk would have an idea. Hopefully, Neil neilarmstrong1969@hotmail.com Ireland Tag: Blocking access to internet from networked computers Tag: 33096
  - 12
    - scan after logon? Will WINXP reload virus scanner updates if you just log off? I was told that you totally have "restart" for the upddates to take effect. True or not? Thanks! Patty Tag: Blocking access to internet from networked computers Tag: 33091
  - 13
    - SecUpd (KB824146) - hangs Outlook After I have installed "Security Update for Windows 2000 (KB824146)" on a Win 2000 workstation, Outlooks hangs when checking mail (about 10-20 secs after starting outlook) on a few PC's (4 of 15). I cannot se anything incommon with these machines that doesnt match the others that works ok. They are all Win 2K english version, with latest Servicepack. I have tried to repaire the PST-file, but there are no errors.... I'm totaly out of ideas :-( Tag: Blocking access to internet from networked computers Tag: 33088
  - 14
    - Win2K SP4 after MS03-039? I have a bunch of PCs that need SP4. I've also already sent MS03-039 to all of them. Do I need to reapply MS03-039 after installing SP4? Thanks, Tom Tag: Blocking access to internet from networked computers Tag: 33087
  - 15
    - All these patches How can I get all these patches without using Windows Update? Only the 9/10 patch is available for download as far as I can find, and it took a lot of searching. Is this the only patch that I need for Win2000 SP4? Is there an easier way, short of setting up a dialup ISP for our PCs which are not connected to Internet? Tag: Blocking access to internet from networked computers Tag: 33084
  - 16
    - worm virus I'm stuck on Pg. 3 of Dell's instructions (Knowledge Base - Document Number HO1083290).I don't understand what to do when it says "Click the file (what file?) for yourOS listed below; and save it to your Windows Desktop: (how do I save a file?). I hope someone can help me. Thx. Sharon Tag: Blocking access to internet from networked computers Tag: 33083
  - 17
    - Can't map drives via VPN after patch install Hello Everyone, I had all my remote users install the Microsoft patch KB8239800-x86-ENU.exe for the Sandblaster virus etc. Everyone had no problems after installing the patch except two end users. One uses W2K Professional and the other uses XP Professional. The W2K client gets 'Access denied' type of error message. The XP client recieves 'The necessary VPN sub-system is not available. You will not be able to make a conncetion to the remote IPsec server'. Mean while I will have the end users remove the Cisco VPN client software and re- install. Has encouontered or heard of this? Any help would be greatly appreciated. Cardal Tag: Blocking access to internet from networked computers Tag: 33082
  - 18
    - KB824146scan disagrees with Windows Update site When I run the KB824146scan tool against a particular IP, the result is unpatched. But, when I go to the Windows Update Site from that machine, there are no critical updates. What could be causing this? Tag: Blocking access to internet from networked computers Tag: 33069
  - 19
    - Windows Update patches won't download Windows update does not work since the latest batch of viruses. Machine has been scanned with Norton Antivirus - completely up to date - and no viruses show up. Is there a work around to get microsoft patches from someone other than Microsoft?? Please let me know. thanks . Tag: Blocking access to internet from networked computers Tag: 33064
  - 20
    - Please Help Me!!!! Please Help Me!!!! Yesterday I had 15 workstation computers running XP shutdown unexpectedly. This shutdown was not due to a power outage. Each workstation went through the shutdown process and restarted just like it would if you picked restart from the Start menu. Does anyone know how this could happen? Just to let you know we are running a Cisco firewall. Thank you for your help. Chad Tag: Blocking access to internet from networked computers Tag: 33060
  - 21
    - OE retrictions Is there anything that can be done to get an attachment that has the following restriction: "OE removed access to the following unsafe attachment in your mail: filename" Tag: Blocking access to internet from networked computers Tag: 33059
  - 22
    - IE is not opening new window Hi All SHIFT+CLICK should open the url in new window, but not working today. POPUPMENU+"Open in new window" is also not working. Any site pop-ups are also not working Need help urgently.......... Thank you. Jitu>> Tag: Blocking access to internet from networked computers Tag: 33057
  - 23
    - Windows Update I have been trying for several days to access the Windows Update page and/or trying to download the KB824104 security update for XP, but every time I try I get the "This page cannot be displayed message." I get the same message trying to access the Microsoft home page. Anyone else with this problem? Suggestions? Tag: Blocking access to internet from networked computers Tag: 33055
  - 24
    - Doubts Regarding Working with Smart Card & Memory Card The procedure we have used to read data from the memory card is as follows: SCARD_T0_COMMAND ib; LPSCARD_T0_REQUEST tt; DWORD hk=5,t=10; ib.bCla=00; ib.bIns=0xB0; ib.bP1=00; ib.bP2=05; ib.bP3=02; tran=SCardTransmit(card,SCARD_PCI_RAW,(LPCBYTE)&ib, t,NULL,(LPBYTE)&tt,&hk); where card is the handle returned from SCardConnect. The value returned by the function is 22 ie. the error code for Bad Command. What is wrong with this procedure? Can yo please inform us the procedure that should be followed to read data from a memory card using SCardTransmit. Is there any difference in the procedure to read data from smartcard and memory card? What is the ctlcode for reading data from the smartcard and memory card(that can be used in SCardControl)? Or can we define the ctlcodes? If so how to define them? Tag: Blocking access to internet from networked computers Tag: 33045
  - 25
    - content advisor password Years ago we set up the content advisor password. I can't remember it. How do I reset this option? Can I disable it? By this age I'm sure the kids could reset it for me! Tag: Blocking access to internet from networked computers Tag: 33044
- Next
  - 1
    - security patch Hello, I'm unable to get the security update 823559 to install on my computer. My OS is windows me. Thanks to anyone with ideas. Alex Tag: Blocking access to internet from networked computers Tag: 33043
  - 2
    - Blank Sender/Subject How can I block emails which come with blank sender and subject lines? ISP says they cannot. Tag: Blocking access to internet from networked computers Tag: 33042
  - 3
    - spyware removal I recently purchased a Compaq Presario 7500, running Windows XP home, with 2.0 Gig, 128 MB RAM. Upon connecting it to my university's network, I find my hard drive ridden with countless spyware programs that take control of my internet browser, flooding my screens with pop-up advertisments and redirecting me to undesirable websites when I point my browser elsewhere. I have a program that allows me to detect this spyware on my hard drive; So far, the most prevalent ones are named BackWeb, Brilliant Digital, Cydoor, Hitbox, and something beginning with My-Way. The program I'm running, however, does not allow me to uninstall or delete this spyware from my hard drive. Anyone have any suggestions? It's really impeding the speed and ability of my processor. Tag: Blocking access to internet from networked computers Tag: 33039
  - 4
    - debug.exe Does anyone know if it is possible to remove debug.exe from Win XP Pro. I have to remove attrib.exe and debug.exe for security reasons (inmate access in a prison setting). I can remove attrib by deleting both the file and the autorestore file. Debug still auto-restores. Any Suggestions??? Tag: Blocking access to internet from networked computers Tag: 33037
  - 5
    - Win2000 patches Where can I find all the Win2000 security patches without using Windows Update? Our PCs are not on Internet. I need to be able to download to floppy or CD and manually install. We have SP4 right now. Which patches exist beyond SP4? Same for Word 2000 and I.E.6. We do have risk of viruses and worms via dialup to billing services and backup hard drives that get plugged into home PCs. Will we have to sign up for dialup ISP if Windows update is the only way to stay current? Tag: Blocking access to internet from networked computers Tag: 33033
  - 6
    - security password on a USB hard drive i have a USB hard drive. i have partitioned it into two and would like to secure one as it is confidiential work and keep the other open. i was thinking of somehow having a password for the drive but could not find any security options for this. is there any way to secure the drive? thanks. Tag: Blocking access to internet from networked computers Tag: 33031
  - 7
    - Exploit/PoC Code posted for MS03-039 vuln If you have NOT PATCHED your systems for the RPC DCOM vuls, you had better bust a move and get it done - now. A possible/probable exploit code has been published and discussion is heating up on numerous groups that would take advantage of such code. For your edification: RPC DCOM long filename heap overflow Exploit (MS03-039) http://www.k-otik.com/exploits/09.16.MS03-039-exp.c.php Good luck - get patching! -- Rick Kingslan MCSE, MCSA, MCT Microsoft MVP - Active Directory Associate Expert Expert Zone - www.microsoft.com/windowsxp/expertzone Tag: Blocking access to internet from networked computers Tag: 33030
  - 8
    - Help! I can't do my on-line banking since I installed 2000 It won't let me get past the security. I just downloaded explorer 6.0 Why's this happening and how can I get into my websites? Tag: Blocking access to internet from networked computers Tag: 33029
  - 9
    - words automatically appear In the last few days, every time that I attempt to compose an e-mail, words automatically appear in the send to line, and spurious words and charactersappear as I type in the content, or if I open MS Word to create a document, words automatically appear. It would seem to me that I have a virus or trojan in my system. My anti-virus and firewall are regulalrly updated, but I may have accidentally let something through. Also, the letters typed do not always appear immediately on the screen. Please could somebody advise me how to get rid of this effect. This is a sample of what is happening. The following characters appeared as I was typing this request for help - a a a man AM a man ..... a man a a a a man man and a a man a Tag: Blocking access to internet from networked computers Tag: 33027
  - 10
    - Adding existing McAfee Scan account to new computer Can anyone tell me whether I need to start a new subscription to McAfee Security Scans if I still have several months with a subscription on my old computer? I've tried to sign on for updates online, but am told I need to buy a new subscription. My old computer is very dead, so it seems that I should be able to transfer the account to my new system. A free trial is available with my new computer. However, McAfee tells me that I already have an account so I'm not eligible for the trial. Sort of a catch 22. By the way, the McAfee website was absolutely no help with this question. Thanks for any help. Tag: Blocking access to internet from networked computers Tag: 33020
  - 11
    - security question I am unable to access secured websites. I cannot access my bank account or pay bills online. My internet provider says to contact microsoft, so hopefully you can help. Tag: Blocking access to internet from networked computers Tag: 33016
  - 12
    - Windows Update Failure For the past three weeks a Windows 98 SE machine has given a General Protection Fault when installing a critical update (841078). I have exchanged emails with Microsoft several times during that period (they take a few days to react). The first suggestions they made did not apply to W98. The subsequent suggestions were easy to apply and totally ineffective. I still get a General Protection Fault when I attempt to install the update. Has anyone else had a similar experience? Does anyone think this is a satisfactory response from Microsoft? To forestall the inevitable question: I have not updated because I have software which will not run on newer versions, and a scanner that has no XP driver available. Tag: Blocking access to internet from networked computers Tag: 33015
  - 13
    - MBSA Is the MBSA V1.1.1 data base up to date? I downloaded, installed and ran the program. In the results was a list of security updates old or missing or could not verify. In the sublist of old updates was listed two fixed each said that my computer had a later file than the one expected. This seems like an out of date data base. Anyone else seen this? Don Tag: Blocking access to internet from networked computers Tag: 33001
  - 14
    - virus Iam quite new to computers and would like to know if you can have TWO anti virus packages on your system or would one work against the other? Tag: Blocking access to internet from networked computers Tag: 33000
  - 15
    - Password not accepted I followed the instructions to limit access to certain sites by installing ICRA. Now, I can't even open IE, I get the message that the content advisor will not allow me to open the page. It is not accepting the password I entered. I deleted ICRA from my file. But had to get here via Netscape. Any suggestions? Tag: Blocking access to internet from networked computers Tag: 32994
  - 16
    - Blocking Senders Good afternoon Deb, If you are using Microsoft Outlook, you can have the unwanted senders mail sent directly to the trash once received. In Outlook, click on Organize icon, on your tool bar, select Junk email. Then use the pull down menus to set the rules to Move Junk messages to Deleted Items, and then click the Turn on Button. Then go back to your un-wanted mail and right click on it and select the Junk email list, add to junk senders list. You will receive a confirmation, just click ok and you are finished. No new software needed. You can also do this using Netscape, just a differant setup is all. Hope this helped. Have a great day. Dave Tag: Blocking access to internet from networked computers Tag: 32982
  - 17
    - Security IE How do I delete a file underthe drop down "File under " offline ? Tag: Blocking access to internet from networked computers Tag: 32980
  - 18
    - Patches KB824146 AND KB823980 I utilized the KB823980 scanning tool on my entire class b IP address range and pathched all that showed vulnerable. Then comes the second patch and scanning tool. I run KB824146 scanning tool and deploy the patch Via SMS out to all the client machines. When I go back to the KB823980 scanning tool and run it to assure we are protected, it shows that I now have hundreds of machines infected once again. Here is the Kicker,,, If I re-run the KB824146 scanning tool, it will show that all the hosts have both patches applied I wonder if patch number two made changes to patch number one so that when you re-run the original scanner it can not find its fix, there for shows the system vulnerable. Any body else run into this? This one has me wondering if the second scanning tool will fix bothe security breeches? Thanks for your help IT community. Dave Tag: Blocking access to internet from networked computers Tag: 32976
  - 19
    - SUS Server Is there a news group dedicated to the Security Update Server? I can't seem to find it. Thanks... Tag: Blocking access to internet from networked computers Tag: 32973
  - 20
    - Disabling DCOM on Win2K SP2? Microsoft has a workaround for these RPC vulnerabilities which is to disable DCOM. However, they say that on Win2K you must be on at least SP3...Since you can disable DCOM on NT4.0, I need to figure out why the SP requirement on Win2K. Any help appreciated. Thanks, Erik. Tag: Blocking access to internet from networked computers Tag: 32971
  - 21
    - FIREWALL question In general, when setting up a firewall, what is the relation in opening up internal ports vs the external when you want to allow traffic from the internal to the external? i.e.: if i want users on the internal network to send smtp traffic (port 25) then do NEED to open port 25 on BOTH the internal and external interface?, or just the internal? And for web browsing, web ssl, pop3, etc...? Tag: Blocking access to internet from networked computers Tag: 32966
  - 22
    - ICS & TCP/IP filtering I have a PC which conntects to the Internet via a dial-up modem. It also connects to a home LAN. I share Internet for my LAN with ICS. I don't want LAN user using some Internet service such as IRC so i use TCP/IP filtering in the advanced tab of TCP/IP settings, but the filter only block connection with specified destination port while connecting to the PC, it does not block traffic with the same port from LAN user to the Internet via ICS. Users's still able to use IRC. I run Windows XP - Service Pack 1 with all patch updating. Tag: Blocking access to internet from networked computers Tag: 32959
  - 23
    - Why does the KB824146scan.exe toll show Cisco devices as "unpatched" I ran the KB824146scan.exe tool against my domain to find unpatched machines and it returned "unpatched" on several Cisco devices. Does anyone know why this would happen? My concern is that this utility may not be working correctly. Thanks Kurt Tag: Blocking access to internet from networked computers Tag: 32958
  - 24
    - HELP Hi!new to all this. just got our computer. checked out a couple of explicit sites now can't stop them from popping up constantly while surfing. afraid for kids to see this while they are on the internet. What do I do to stop this??? Tag: Blocking access to internet from networked computers Tag: 32956
  - 25
    - pc keeps re-booting after applying ms03-026 patch Hi, I really hope someone can help me with this one - I have a braodband connection from NTL, my pc was infected with a virus via NTL's network. They sent a disc with the above patch and an MSBlaster removal tool from Symantech on it. I followed the instructions but the tool reported no virus. I also ran an exe supplied by NTL via the net called FixWelch.exe - this did report a virus and said it had been removed. Since then I have been unable to use any MS application without the pc rebooting after a couple of key strokes. Has anyone heard of this, even better knows how to fix it. thanks, Eve Tag: Blocking access to internet from networked computers Tag: 32955

How do I block certain computers on a network from
accessing the internet while allowing certain computers
to acces the internet from the Network ?

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