Firewall

Similar Questions

• Firewall Server 10.5 does not

  Sorry for the double post, but the forum 10.5 server seems to be dead - I hope that someone here has a clue about these things.

  *****************************************************************************

  I'm trying to set up a firewall for my 10.5 server, but I can't seem to make it work. The main goal is to try to stop brute force constant mail connection attempts.

  To this end, I installed fail2ban, to identify and prohibit connection failures. Most of the time it works, that is to say the mechanics submit banned IP addresses and send me an email for this purpose is accomplished. If I start a terminal session, I receive dozens of IPS listed with the following command:

  sudo ipfw list

  With an entry similar to:

  12345 tcp refuse to 123.123.23.123 any in

  But the ban is not only effective - the same IP address will try again later, sometimes every few seconds for hours

  When I check the log of fail2ban, he complains (after that that it has detected a malicious connection repeatedly attempt):

  '[Sasl-ipfw] 123.123.123.123 WARNING already banned '.

  I tried the prohibition of formatting in different ways:

  12345 tcp refuse to 123.123.23.123 to 127.0.0.1 dst-port 25

  12345 tcp refuse to 123.123.23.123 to 192.168.123.123 dst-port 25

  But simply do not make any difference. I even tried just a ban on local network for the web service:

  12345 tcp refuse to 192.168.123.122 to 192.168.123.123 dst-port 80

  But again, which has no effect. Other rules, seem to be by default, in the eyes of IPFW list as:

  12300 allow the newspaper logamount 1000 tcp from any to any established

  12301 allow the newspaper logamount 1000 tcp from one to one of

  12302 allow the newspaper logamount 1000 tcp from any dst-port 22...

  and a final settlement in the list (which I've read somewhere not editable):

  allow 65535 ip at all

  App server admin shows that the firewall service is running, there is no ads of 'decline' the newspaper of ipfw. The inputs patched in to fail2ban IPFW appear not in the Admin Server Anywhere entries, nor in the files ipfw.conf or ipfw.conf.apple (so I don't know where they are stored). But I see them when I me 'ipfw list' in the terminal and they are listed in the "Active rules" tab of the firewall section in admin server.

  Thanks for any help on this matter.

  Post edited by: Clive Bruton - formatting messed up!

  This problem is solved, see:

  Firewall Server 10.5 does not

• Does anyone have Apple message firewall failed?

  Someone at - he rec'd a message that the Apple firewall has failed and now you can be infected by a virus? they gave a site worth visiting "Apple support.solutionand a 800 number to call."

  This kind of message popup will be a scam.

  Phony 'technical support' / 'ransomware' popups and web pages

• Firewall, yes or no?

  I got my iMac 10.9.5 yesterday for crashing issues, they said there is no problems of material and thought

  It would be better to do a reinstall of the operating system (maverick) when we look through that firewall security is turned off, do I need this on, I noticed? I had read the different options, but is it necessary?

  Thank you

  If you are connected to a public network, then Yes. You should have the firewall on. If it's on your private network (connect to the internet via a cable or DSL modem in your home), then there is really not much need to do unless your network is secure.

• Firewall left for weeks, should I worry?

  I forgot to turn on my firewall weeks, should I worry?

  I have a password manager (1password) on the mac, which 275 passwords in it. I'm just worried for nothing or I should change each password just in case my mac has been compromised? (no account seems to be compromised).

  Only, I'd be worried if either:

  -Your Mac is directly connected to the internet, which is not through a router a router as a firewall.

  -You have other users you do not trust connected to the same network

• Curious firewall alert

  Hello everyone, this firewall alert appeared this morning, never seen before. There is nothing important or make me a sort of infestation?

  > do you want the application 'netsession_mac' to accept incoming network connections?

  Anyone know what that "netsession_mac"? I would be grateful.

  Try this discussion > netsession_mac allows incoming connections?

• I forgot to turn on the firewall

  After updating Adobe Flash, I forgot to re - activate my firewall. I checked it after noticing that a number of Web sites, I have visited not appeared in my web browser (Firefox). It was late, so I've re-enabled the firewall, turn off my iMac and went to bed. The next morning, I'm sending you this from my iPhone. How can I tell if there is malicious software on my iMac?

  Oh! I've also been alerted by a friend that she had an email 'me' which of course was not

  Help!

  marsue

  Try to run this program, copy and paste the result in a response. The program was created by Etresoft, a regular contributor.  Use please copy and paste the screenshots can be difficult to read. On the screen with the Options, please open Options and tick the boxes in the bottom 2 before the race. Click on the button "Report share" in the toolbar, select "Copy to Clipboard" and then paste into a response. This will show what is running on your computer. No personal information is shown. Alternatively, you can run Malwarebytes.

  Etrecheck - Information System

  10.8 Malwarebytes Anti-Malware for Mac and later versions

  What should I do if Malwarebytes Anti-Malware for Mac does not solve my problem?

• Incoming connections are blocked, even if the firewall is disabled

  OS: Macbook Air OS X Yosemite10.10.5.

  The application of "Security & Privacy" firewall is disabled.

  I am able to ping other machines on the same subnet of the Mac, but I cannot ping the Mac from other machines. Using Wireshark to capture packets that I found the Mac has received other machines ICMP packets, but it did not.

  I tried to enable "System Preferences '->' sharing '->' remote access connection", but it does not work if I remote connection to other machines.

  I have a sneaking suspicion that it worked fine until I upgraded to Yosemite.

  Help, please. Thanks in advance.

  Solved by uninstalling Magican.

• Yosemite does not allow incoming connections, even if the firewall is disabled

  OS: Macbook Air OS X Yosemite10.10.5.

  The application of "Security & Privacy" firewall is disabled.

  I am able to ping other machines on the same subnet of the Mac, but I cannot ping the Mac from other machines. Using Wireshark to capture packets that I found the Mac has received other machines ICMP packets, but it did not.

  I tried to enable "System Preferences '->' sharing '->' remote access connection", but it does not work if I remote connection to other machines.

  I have a sneaking suspicion that it worked fine until I upgraded to Yosemite.

  Help, please. Thanks in advance.

  Try to run this program, copy and paste the result in a response. The program was created by Etresoft, a regular contributor.  Use please copy and paste the screenshots can be difficult to read. On the screen with the Options, please open Options and tick the boxes in the bottom 2 before the race. Click on the button "Report share" in the toolbar, select "Copy to Clipboard" and then paste into a response. This will show what is running on your computer. No personal information is shown.

  Etrecheck - Information System

• What firewall exceptions is I have to set to enable automatic updates?

  We use Firefox on an administrative workstation that does not have general access to the Internet. What firewall exceptions is I have to define (IP addresses, ports), so that Firefox can automatically download updates?

  Thanks in advance for your help.

  Thomas

  The update URL is generated via the app.update.url pref you can check on the topic: config page.

  If you want to see the exact URL and then install Live Http Headers extension and open its window.
  If you open "> about" then this will trigger an update check to retrieve an update.xml file and you should see the full URL in the HLH capture window.

  • https://addons.Mozilla.org/firefox/addon/Live-HTTP-headers/

• I'm not real clear but I do not have a firewall with mozilla firefox? I have the latest version

  I would like a breakdown of what I have for mozilla firefox, but I'm looking in the wrong place or I do not have a firewall?

  Hello

  Firefox is a web browser and, while it has security features included, does not come with a firewall.

  I noticed that you are using Windows 7. Who doesn't have a firewall, the parameters that are accessible via the control panel.

  I hope this helps, but if not, please come back here and we can look at another solution for you.

• Firefox cannot connect to the internet, while the other browsers can... have deleted the software and reinstalled... turned off firewall and virus program.

  Delete a few files TEMP this morning and AOL and Firefox no longer works. AOL will again and removed all traces of the first installation of Firefox and downloaded a new version of Firefox. The program opens, but it immediately goes into a status of "not responding" and appears in the tab 'connection '. Cannot click on anything on the Firefox screen. Need to go to the Task Manager to kill the program. Have removed and reinstalled several times. Disconnected the firewall and antivirus. Again and always get the same result. Tried in safe mode. Same result. Going on 8 hours of work on this thing. Need help badly. The system is a version update of XP.

  Thank you all, but I gave up. Tried all the suggestions without success. Put at disposal of the HDD with Windows XP and the problem of Firefox and loaded Windows 7 on a new drive. I had saved a file backup Favorites from the XP machine and successfully migrate the new hard drive. Thanks again.

• Is it safe to leave netbios D through the firewall?

  I notice that netbios d wants to access the computer through firewall he.

  What is a required protocol?

  NetBios is the protocol used by the Windows file share to discover other computers using the same protocol. Do not allow this through your firewall.

  Even if you don't want to allow access to a remote computer, it must be done via a VPN connection. You should not let any network of ports opened to the Internet unless you really have to. examples where you run a website or, of course, a VPN server.

  If that rather than being a network-level firewall that is a device of protection for your entire network, is instead a software firewall on your Mac and protecting so just as Mac, then you will allows NetBios through so that other computers on your network can make Windows sharing files with you.

• How can I get Plugin-container via my firewall after I have x'd in the message?

  When my computer was asked if I wanted to allow Firefox Plugin-container through my firewall, I x'd out accidentally. How can I get it through my firewall now?

  It depends on your security software. Usually, there will be a panel that lists the programs that you have allowed and blocked and let remove you it from the list if the program will ask you again. You will find something like that?

  Note: this Panel would be in your security software and not in Firefox.

• Disabled Firewall - now starts like new computer

  Based on a recommendation of the Apple Genius Bar, I disabled my firewall.  It took about 20 minutes and then says to restart when he did.  When I rebooted, it starts as a new computer asks me to select a language and then restore from time machine, reinstall the OS, etc.  When I use disk utility, it shows the data on the disk, but it shows it all as "Other" instead of Photos, Audio, applications, etc.

  Fortunately, I made Time Machine backup before I did.  But do not want to do if I can't because the other problems can result from what I've experienced.  Especially since he is a corporate company computer and not mine.

  Why even get and can I pick up some way or I have to go through the process of Time Machine?  Thank you.

  Well, obviously, I'm OK now.  I tried to reboot several times, but he kept taking me to the Welcome screen again as if it were a brand new computer.  Then I tried to restart the menu Apple in the upper left corner and who took me in the sequence normal start for my computer.  I rebooted several times now, just to make sure, and it does everything correctly again.  Not sure why restart that way makes a difference, but it was apparently the case.

  BTW, the guy from Apple's Genius was correct. My computer is used to take 3 + minutes to start.  Now, after you turn off the firewall, it's less than 30 seconds.  Also stop is too way much faster. I understand the additional security with firewall, but I think worth it to turn it off.

• Firefox being blocked by McAfee Personal firewall, how to open it to the top?

  I have McAfee Personal firewall with this computer when I bought it. I just downloaded Firefox and when I try to access a web page, I get:

  "If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web."

  I need help changing the McAfee Firewall to allow Firefox access to the internet.

  This support article McAfee help?

  'How to add an application to the McAfee Firewall program permissions list'
  https://service.McAfee.com/faqdocument.aspx?ID=TS100813