I have 2 offices next to each other, however each office has its own firewall (different manufactures).

Office A needs to communicate with Office B with one computer. In office A I have one computer with 2 NIC cards, one configured with the 0.1 network and the other with 1.1 network.

I have a physical connection going from Office B (Sonicwall) to the second NIC card in the PC in Office A.

When I go to office B I can ping office A, but when I go to office A and try to ping office B, I don't get a response.

The PC in office A is running Windows 10 Pro

Question, can this set-up work with 2 NIC cards in one PC to create the connection across the two networks?

I have tried creating routing rules in the firewall, but no success so far. I can only ping from office B, but not the other way around.

Thanks in advance
existing-connections.pdf

I am looking to purchase Firewall. Anti-malware router.  It's for my small business of currently about: 30 people but will grow up to 100 units within the next 1-2 years.

The problem is we had a ransomware attack couple of days back and it's made us more aware.

The other thing to take note is: We don't have in house IT professionals, so we hire professionals from all over the world to work on our servers, they sometimes use RDP to login. or team viewer.

We use a VM ware, specifically promox, so we considering using: nakivo for back up also.

Our ISP guy recommended we used: Mikrotik RB/1100AHX2 Routerboard RouterOS Level 6 but he thinks we are small for it, and I think there's something better already.

I want to invest for the next 5years. I want to buy something that will take us to the next level, yet keep us funtional.

I don't know if we can also use it to block certain sites, manage bandwidth for users in the office, anything that'll generally keep security really up above board. Thank you.

I have a sonic-wall firewall . There are a lot of access roles such as rdp and http being forwarded to internal servers . I need to shot down all of them  for now . What is the easiest way . I just need outgoing traffic to work for now and vpn to work .

Is there a cheap sheet for identifying security issues and their solutions to the challenges.  I wanted to get a list of possible security concerns and then the solutions for such a concern.

Unable to see shares when I access server 2016 through UPN path from any client/server on same domain. I believe it could be firewall rule SMB over TCP which is blocked. I can ping the server but can't access it.

I'm running Windows server 2016, trial version
error.png

so all of a sudden some emails stop flowing and my connector is not validating, been setup for years and we did not change any server or network settings

i have Office 365 and a hybrid server - exchange 2010

the emails that are failing are coming from my mercury server and flows thru my exchange to office 365. i have contacted microsoft support but they are saying its an internal issue.

Description of problem:
I have this a text file

# Generated by iptables-save v1.4.21 on Fri May 11 16:48:14 2018
*nat
:PREROUTING ACCEPT [104870:20593583]
:INPUT ACCEPT [116564:21221907]
:OUTPUT ACCEPT [17993376:1098269263]
:POSTROUTING ACCEPT [17993377:1098269323]
-A PREROUTING -p tcp -m tcp --dport 443 -j REDIRECT --to-ports 4443
-A OUTPUT -d 127.0.0.1/32 -p tcp -m tcp --dport 443 -j REDIRECT --to-ports 4443
COMMIT
# Completed on Fri May 11 16:48:14 2018
# Generated by iptables-save v1.4.21 on Fri May 11 16:48:14 2018
*filter
:INPUT ACCEPT [104255:21990084]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [116465543:24365206954]
-A INPUT -p tcp -m state --state NEW -m tcp --dport 4443 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 8081 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 8443 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 8080 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 8081 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 8443 -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited 
-A FORWARD -p tcp -m tcp --dport 4443 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 8081 -j ACCEPT
COMMIT
# Completed on Fri May 11 16:48:14 2018

Select all Open in new window

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.Place the File in a Tmp directory as iptables-export-ref2.txt
2.Run the Command: sudo iptables-restore -t < /tmp/iptables-export-ref2.txt
3. Error: Iptables-restore v1.4.21: iptables-restore: unable to initialize table 'nat

Actual results:
It gives error : iptables-restore v1.4.21: iptables-restore: unable to initialize table 'nat

Expected results:


Additional info:
I am not sure what is missing here and what needs to be done to get this implemented.

Windows Server 2008 Firewall

I'd like to restrict Remote Desktop access to the server to just one external IP, and one LAN IP.

Have created an inbound rule for the RD port.

If I enter the external IP in the rule scope options and leave local IP as any, then only the external IP connects but no local IPs
can connect. If I enter the local IP specifically then it blocks access from the external IP even though its specifiied.

It appears I can do one or the other only in the rule.

How do I configure the firewall to allow RD access from one specific internal IP and one specific external IP only ?

Thank you

Looking to find software that we can install on a certain couple of users PC's that will send their manager a log of what websites she is visiting, times and how long?

Don't want to spend 1000 dollars, just something basic.

I am doing my first sbs 2011 Standard to office 365 hosted exchange migration.

I am using migration wiz and 4 of 5 mailboxes failed. one talked of actively refiusing the connection.

It reminded me - there's a watchguard firewall at the sbs 2011 location.  I remember once someone else having a problem with too much data going to /. from 1 place that the watchguard shut it off - there's a setting to limit amount of data to / from 1 external location that was on by default.

Anyone know where that is?  Could that be why they are failing the migration?

can you tell me where to look to disable that if it's on. and maybe where to look to see if that feature was activatted in the last 48 hours?

THANKS!