Firewalls

Similar Questions

• How can I make sure that any firewalls (versions of software or hardware) does not block port 443 to access?

  How can I make sure that any firewalls (versions of software or hardware) does not block port 443 to access?

  Hi Anna_753,

  Usually, you would receive messages from any program if it is impossible to access the port.

  If you want to check if the port is accessible, then you will need to check the firewall settings.

  Each firewall has its own parameters for ports of the computer.

• Explain to me how a multi-level security strategy can be deployed domain LAN-to-WAN and the LAN domain to the domain of the workstation with the use of internal firewalls.

  Explain to me how a multi-level security strategy can be deployed domain LAN-to-WAN and the LAN domain to the domain of the workstation with the use of internal firewalls.

  Hello

  Your Windows XP question is more complex than what is generally answered in the Microsoft Answers forums. It is better suited for the IT Pro TechNet public. Please ask your question in the following forum.
  http://social.technet.Microsoft.com/forums/en-us/itproxpsp/threads

• have 2 firewalls... How can I remove the 1 of them... How can I know which?

  2 firewalls, causing the crash on CP.  I know how to turn the firewall off the coast, but how I know if I'm turning off the right pair?

  In addition, Windows Defender is turned off... how do I manually turn it back on?

  Hello

  never 2 AVs installed causing system performance, including accidents issues!

  Although eSet has expired continues to work

  by following their instructions to uninstall link below to uninstall manually or download their removal tool

  http://KB.eset.com/esetkb/index?page=content&ID=SOLN2289

  _____________________________________________________

  read this information on the Defender:

  ·                         If you use microsoft security essentials avg avira mcafee norton etc they disable the vista version of windows defender by default

  the basics of Microsoft security has its own version of windows defender

  and other anti-virus programs use their own particular type of application to scan for spyware and malware

  It of nothing to worry and is the default action, which is designed for them to do

  ________________________________________________________________

  and if you need to change startup programs read this information on the other methods of doing it without using defender

  using msconfig read this tutorial:

  How to use MSCONFIG in Windows Vista

  Here's how to use MSCONFIG in Windows Vista to disable some unnecessary programs that load automatically at startup

  http://netsquirrel.com/Msconfig/msconfig_vista.html

  and also try this FREE program Autoruns:

  This utility, which has a knowledge of auto-starting locations of any startup monitor, shows you what programs configured to run at system startup or login and that the entries in the order of processing windows. These programs include those in your startup folder, Run, RunOnce, and other registry keys. You can configure Autoruns to show other locations, including Explorer shell, toolbar extensions, helper objects to the browser, Winlogon notifications, auto and many start-up services more

  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902

• After installation of Service Pack 1 for Vista 64 bits, Windows Security says Malware and firewalls are off.

  I recently reinstalled my copy of Vista 64 bit I hope to solve this problem that has been with me for a while.  Before I wiped and reloaded, Security Center Windows would alert me every day that my firewall protection and malware have been disabled.

  I use Kaspersky Internet Security, which is fully updated and works as it should.  I am able to activate Windows Firewall and bypass the firewall Kaspersky and that error to go away, however, I can't remove the error of malicious software.  I got all these errors directly after a restart after the installation of service pack 1.

  Under Windows Security Center it says, "Kaspersky Internet Security reports that it is turned off," under the heading for malware protection.  When I click on the button to activate under Windows Security, it goes through the steps who say do you trust this program, Yes, Yes, ok.  After choosing all the options of trust Kaspersky and activate this protection, he thinks about it a little, but always returned and said it's off.  It also has a green light saying that Windows Defender is actively protecting your computer.

  I think that my Internet Security Suite is successfully active in these areas and work I checked the menu, check that they work.  In my opinion, after installation of service pack 1 that something I have messed up in the statement that those programs are active or really uninstalled them.

  Even if I can get the only message that the Kaspersky firewall is disabled to disappear by enabling the Windows Firewall, which is not yet as I want.  I want the suite of internet security that I paid to be active and functional on the side of the Windows security features.

  I would appreciate any help with this problem by addressing why he continues to warn me that my protection malware and firewalls are disabled.  Thank you.

  Also install Windows Vista SP2 this problem could be solved, otherwise try to uninstall and reinstall Kaspersky and also, try to get the latest version of Kaspersky.

  If still the same issue please contact Kaspersky support.

• Disabling firewalls

  I am trying to download a program and said that the data sent from the server gets corrupted.  Possibly, there is a firewall blocking this download program.  I have McAfee and Microsoft Security Essentials.  I might have any other firewalls I don't know.  How to detect and disable the firewall on my computer to see if I have solve my problem this way?

  If you have McAfee AV and MSE (you should not be running both at the same time - you should uninstall McAfee as MSE is a better product), then these are programs AV/AM/AS no firewall (unless you have McAfee Security Suite, then you may need to disable the firewall by opening the program and going to firewall controls and disable or turn off - so I would always uninstall McAfee and keep MSE) and firewall Windows as they are both excellent works and you shouldn't have two race or you could cause breaks down, corruption, freezes and all sorts of problems). Really, you should not the McAfee Firewall as Windows Firewall is at least as good work and running the two doesn't make you safer.

  You don't have a Windows Firewall.  Go to start / Control Panel / Security Center / Windows Firewall / change settings / click the off button to turn it off.  Once you're done everything you do (and make sure that you trust this source because you leave yourself wide open by turning off the firewall to allow this program and all that they decide to send with him in the background which could infect or hack into your system), remember to re-enable it by clicking on the button.

  I have no way to know if you have any other firewall - Vista comes with only one Windows Firewall and I explained the other two you listed above.  Only you know what you have installed on the system - there is no place to check the installed firewall.

  I hope this helps.

  Good luck!

  Lorien - MCSA/MCSE/network + / has + - if this post solves your problem, please click the 'Mark as answer' or 'Useful' button at the top of this message. Marking a post as answer, or relatively useful, you help others find the answer more quickly.

• OME firewalls and ports configurations required

  I installed OME in a locked DMZ that is highly secure and has a number of different segments of network separated by firewalls... I installed OMSA on Windows physical server and ESXi 5.1 2012 hosts. I also have the physical hosts running Linux OS. OME can successfully connect to the iDRAC for each server, but not in OMSA

  Can you please indicate exactly what firewall ports must be opened to allow communications between OME and OMSA as well as between OME and iDRAC?

  Thank you

  Hi and thanks for the post.

  There should be a table in the user guide OME (online that came with the product, or at www.delltechcenter.com/ome.  The table is called:

  Support for protocols and Ports OpenManage Essentials

  And should highlight the ports you need.

  Thank you

  Rob

• Backdoor in Cisco routers and firewalls.

  The more I read on the NSA scandal (and Yes, I apparently a scandal) less I trust corporations hardware and software.  There is no reason for anyone to doubt that all Cisco equipment comes with a backdoor.  Because these probable backdoors exist it's a matter of time before hackers discover and exploit them.  It's happened to Microsoft a number of times and there is no reason that it could not happen to Cisco.  It is no longer our trust Cisco equipment and have already started researching alternatives network.

  It is more a crazy conspiracy theory, that is the reality.

  In all liklihood, we use a series of firewall to further isolate our network against intrusions.  To reduce costs, we can keep our existing in this topology Cisco equipment, but we will replace hardware Cisco when it breaks down or needs to be upgraded.  I do the same thing with my home network.

  In the last months, we already moved all of our e-mail to secure servers overseas and changed all our McAfee, AVG and Avast antivirus software.  We are also researching Linux distributions to replace Microsoft.

  If Cisco wants to protect their brand, they need to take a stand or see their market share continue to erode.  There must be a CEO to a U.S. company that will take this position and be a hero rather that continue to be a lap dog.

  Hello

  use open-source based linux firewalls and routers.

  and check the source cod

• AnyConnect on 2 different Firewalls

  Hello

  I'm doing the design of network with 2 firewalls. I have 2 firewalls, directly connected to the same ISP. I want to configure my Anyconnect VPN client.

  Design is like.

  Firewall-

  INTERNET SERVICE PROVIDER

  Firewall-

  The firewall is in Active mode and standby.

  1. can I configure anyconnect so that if 1 link to ISP fails anyconnect Client automatically moves to the second firewall. ?

  If Yes, what is the way to do it. ?

  Assuming that we are talking about Cisco ASA firewall...

  A pair of High Availability (HA) presents a single IP address for external clients. This address will move one firewall to another when a failover event occurs. The event of failover may be triggered by the State and the accessibility of a given interface.

  So if the link fails, failover occurs and the standby firewall is enabled. Seen by the clients IP address remains the same and the firewall newly active seamlessly continue to carry customer VPN remote access sessions.

• Internal network segmentation using firewalls

  Recently, an auditor suggested we should segment the internal network, including all professional applications, population office, internal messaging, remote access and the wan by using firewalls. Anyone done this? If yes why?

  The concept of the demilitarized zone (DMZ) provides protection for senior level servers and applications etc. while allowing web servers and mail in general, access and the Internet. If the host is compromised, they do not provide an immediate springboard to important internal servers.

  Of the resources of the company risk assessment will determine the level of required access control. Higher instances of compromise are always determined from internal sources and may justify measures of access control applied to the population of office according to the circumstances of the company and the security posture adopted.

  See you soon,.

  Paul.

• Will there be improvements made to the features of VPN configuration and firewalls in the ACC?

  Future versions of CCA will have the ability to set up the VPN site-to site on UC520s, UC540s and SR520s without having to use the Multisite Manager or CLI? With non-SBCS Cisco VPN products have a Cisco's GUI to configure site-to-site VPNs. The UC520, UC540 and SR520 are the only Cisco products (with the exception of products that have reached end of life status) who do not have this capability in a sort of Cisco's GUI (apart from the Multisite Manager of CCA 2.1 and later versions).

  Future versions of CCA will allow you to modify the firewall on UC520s, UC540s and SR520s rules without having to resort to the CLI?

  Almost all Cisco products, except for UC520, UC540 and SR520 series products, have a Cisco's GUI to configure these features. The SA520 and SA540, these features can be configured in the web GUI. The Cisco ISR, these features can be configured through SDM or CCP. CCA has always had the ability to fix UC520 unit, but he had not the possibility to fine-tune the settings of firewall and security, unlike the web interface SA500, SDM or CCP.

  Reasons why having the skills to the CCA is important:

  • These characteristics are indicated on the data of UC520, UC540 and SR520 sheets
  • The opportunity to refine and verify access control lists in the ACC can accomplish the following:
    • Ability to comply with HIPAA, Sarbanes-Oxley, PCI, etc.
    • Improved troubleshooting
    • Eliminates the need to use CLI to refine or verify the firewall settings
  • VPN site to site can currently be configured via CLI or the CCA Multisite Manager
  • Multisite Manager CCA can be used for virtual private networks between UC500 or SR520s placed in front of UC500 units units
  • CCA Multisite Manager cannot be used for VPN between autonomous SR520 units, or between a unit UC500 and endpoint non-UC500 (with the exception of a placed in front of a UC500 unit SR520)
  • All images IOS Supportepar UC520 units, UC540 and SR520 routers have firewalls and VPN capabilities described here

  Hi John,.

  The ACC is a configuration tool for platforms that are part of the SBCS solutions. Multisite manager is the approach we take to configure a VPN site. Enchancements in customization of the firewall and access lists is something we plan to put on the roadmap. We will continue to improve the CCA to meet these requirements. We will schedule to get these features added in the 2010 calendar.

  Thank you

  Saurabh

• firewalls pix and microsoft exchange

  help required

  I've set up a test network for the practice of sending e-mail messages between

  Send servers in windows 2000 domains different

  (see attachment for the network layout) is what I'm trying to achieve

  to send messages to a user in the field of cyote.com

  ([email protected] / * /) located behind a firewall pix 501 to a user

  the area of acme.com ([email protected] / * /) located behind a pix 515

  network firewall has been implemented so that messages from freds for barney

  are sent to an email server front-end dmz based acme.com

  and are then transmitted by proxy to the backend mail server where is the mailbox of barney

  located where resides on the inside interface of the firewall 515.

  frontend and backend servers are members of the same active directory

  area and therefore, there should be no problem of received messages to the

  front-end server relayed to the back-end server.

  but the problem I had is that it does not work when I send a message

  Fred barney outlook on freds computer (xp-1) tells me that the message

  has been sent but it never happens to the barneys mailbox there is no error message

  Nowhere on sending messages, so I'm not sure that is the problem

  lies with the firewall 501 does not allow messages through or the firewall 515

  not allowing messages through.

  now I just read that there are problems with microsoft exchange

  (in this case the Exchange 2000 with service pack 3 applied) in conjunction

  with cisco firewalls, but my study guide is not very next on

  How to solve.

  so this a cry for I help have been working on it for 2 weeks and have not been

  to fix this anyone know what I should do to firewalls

  to get this working any help will be greatly appreciated.

  PS

  Outlook web app through the front-end server to barneys mailbox works

  fine (if a little slow)

  the pix 501 is running ios 6.3 (4) and the 515 is running ios 7.0 (4)

  concerning

  Melvyn Brown

  A simple test would be to telnet from fred's PC to the IP address of the intermediate zone "telnet x.x.x.x 25' if that allows you through this part is good. Move to the next piece of the puzzle.

  As shown previously to enter ' no fixup not protocol smtp 25' to the pix.

• Is it safe to use Microsoft Tools and firewalls, and how to start.

  Hi, my question is what is it safe to use Microsoft Tools to the Microsoft Web site to improve the performance of the pc and can you name some of them which are the best?

  Second part:-what is the firewall and how to turn it on? Its not turns not on my Pc please be brief and guide me step by step!
  THNX!
  Windows 8

  Hi Muhammad,

  When a third party firewall, such as the Norton firewall is installed, WIndows will renounce its control over operations of the third-party firewall.  Until you actually uninstall your Norton product, the Windows Firewall is not available - you can not it activate or deactivate it, regardless of whether or not the Norton firewall is disabled.  This is done to prevent conflicts that might arise from having accidentally two firewalls running at the same time.  As long as you have installed Norton, this will be the only firewall on the system - disable so won't you firewall and no way to replace the Windows Firewall.

  Note: your system will be vulnerable to attacks from the internet and studies have shown that your computer may be infected within minutes.  Should never online without some kind of firewall to protect you.

  Hope this information helps
  John

• vSwitch and firewalls

  Hello

  I would like to know if a vSwitch in a vSphere environment is stride in hypervisors. So, if VM "Debian" is A hypervisor and VM "SUSE" is located in the hypervisor B and they are in the same vSwitch which has no uplink, will they be able to communicate? If so, this fact transparantly uses the management network?

  What I want to do is using a firewall in the vSphere environment. All VM will be in the same vSwitch. The firewall will have access to this vSwitch so that to another who has access to the internet (an uplink). So, every packet that is sent from and to the internet will pass through the firewall. I know it's possible in a virtualized with a hypervisor environment, but is it possible with multiple hypervisors?

  Thanks in advance,

  > Say you implementing a firewall in a standard configuration vSwitch is possible.

  You can do it manually - create vSwitch with physical uplinks and place only VM with firewall on that.

  Create the second switch with no uplinks, place all virtual machines on it and the second NETWORK firewalls VM card. Turn the "Promiscuous" mode on the two vSwitches.

  As the virtual machine in multiple hypervisors in the same vSwitch (although unique on each hypervisor) cannot communicate with each other, how is this possible?

  Only if you have some physical links.

  ---

  MCSA, MCTS, VCP, VMware vExpert 2009

  http://blog.vadmin.ru

• Firewalls in El Capitan

  Does anyone know how the Firewall works in El Capitan?

  I modified the apple script to add redirection rules and blocking and allowing services on a server that is also a gateway.  It is a script imported from a Maverick server that has a job for a couple of years without any problems.

  Nating and redirect works fine.  Blocking or allowing ports just does not work.  For example, the script blocks everything by default and then lets a few services.  Http is NOT on the list of authorized services.  Basic stuff.

  If I'm running pfctl(8) - sr, I see that my rules are loaded correctly.  But if I turn the Web service using the server application, it works fine on the external interface (en1): the service is available.

  I see in the Access tab ServerApp has set up a firewall to allow access, but these rules are not using pfctl(8).

  I look at all the anchor points too, but none has a rule to allow http.

  So, how does this work?  How can I fine tune the server firewall?

  [missionreste: 13:22] [/ Library/Preferences] % sudo pfctl(8) - sr | grep-i en1

  No ALTQ support in the kernel

  Disabled functions of ALTQ

  drop block in quick access on en1 proto tcp from any to any port = 21

  drop block in quick access on en1 proto udp from any to any port = 21

  move quickly on en1 inet proto tcp from 132.206.51.22 to any port = 22 flags S / HIS keep state

  move quickly on en1 inet proto tcp from 132.206.3.148 to any port = 22 flags S / HIS keep state

  spend out on en1 all status indicators to keep S / SA

  Go on en1 proto tcp from any to any port = 22 flags S / HIS keep state

  Spend on en1 inet proto tcp from 104.156.76.226 port = 5900 flags S / HIS keep state

  block fast on en1 proto tcp from < sshguard > drop to any label «ssh bruteforce»

  [missionreste: 13:23] [/ Library/Preferences]

  And of course, there is a rule to drop to initially block for any interface.

  Be easy on yourself. Icefloor allows to manage for you. (In respect of Jésus Vigo)

  Subsequently, you can see the effects in the command line for the different interfaces.

  Leo

• INTERNET EXPLORE, FIREWALLS, ANTIVIRUS &

  I HEARD SO MUCH HYPE ON:

  WHAT IS THE BEST: INTERNET EXPLORER, MOZILLA, GOOGLE CHROME - WHAT IS THE TRUTH?

  WHO IS THE BEST FIREWALL OFFERRED AND WHY?

  WHAT IS THE BEST ANTI-SPYWARE, REGISTRY CLEANERS, ANTI-MALWARE (S)

  AVAILABLE TO USE TO ENSURE THAT THE CLEANING IS DONE WITH THE LEAST POSSIBLE DAMAGE?

  I USED MICROSOFT ESSENTIALS, AVG, NORTON AND OTHER SOFTWARE TO ME THOUGH

  MICROSOFT ESSENTIALS GUARD GETTING HUNG UP WITH VIRUS ALUREON MAY NOT DRAIN PLUG

  AND NORTON FROM COMCAST MY CABLE PROVIDER WAS A NIGHTMARE

  I USED TO FREE CLEANING SUPER ANTI-APYWARE SECONDARY VERSIONS, OF REGULALRY

  MALWAREBYTES ANTI-MALWARE, SPYBOT, HIJACK THIS, AND MICROSOFT ANTI-MALWARE

  CLEANING TOOL - WELL THAT IT FORCED ME TO RECHARGE MY WHOLE SYSTEM

  (AND YOU MUST TAKE CARE WITH WHAT "FREE" OFFER YOU TAKE OR THE SOFTWARE OR)

  YOU END UP DOWNLOADING ADDITIONAL SOFTWARE THAT CAN CLUTTER UP YOUR SYSTEM

  I USED A CONTRACT PAID WITH TECHNICIANS DELL FOR ONE YEAR BUT SEVERAL TIMES MY

  SYSTEM DEGRADED SO THAT THEY WORKED ON IT UNTIL SHE FINALLY HAD TO BE RELOADED

  MANY COMPANIES ARE ALLOWED TO USE INTERNET TO SUPPORT THEIR BUSINESSES

  BY LOADING FALSE ALLEGATIONS OF YOUR SYSTEM OF VIRUSES THAT APPEAR WHEN YOU TAKE

  THEIR OFFER OF A FREE SCAN - AT LEAST ONE ON MY RODS THAT FORCE A RELOAD

  THE OPERATING SYSTEM - CRIMINAL ACTION IS REALLY NEEDED!

  THUS, TO REINTERATE, WHAT IS THE BEST SOLUTION TO ALL THIS?

  Hi Mark. You are welcome to help.

  As I suspected the Alureon rootkit created a partition of your hard drive as shown below.

  10:11:44.161 Disk 0 Partition 2 00 17 Hidd HPFS/NTFS NTFS 8 MB offset 78108030

  Please click Start > right click my computer > choose Manage > as soon as the new opens the windows scroll down the left pane and double-click Disk Management. All installed drives will be develop in the right pane. Now, look for any marked partition hidden. If the partition is NOT listed as "Recovery" right-click on the hidden partition and choose Remove.

  Note There are moments that disk management does not show hidden partitions. If this proves to be the case here, we use a third party software (free). Let us know the results please. Here is a picture of the management of the disks for reference only.