Tagged Questions
0
votes
1answer
25 views
If my Windows user account (admin) is password-protected, can my PC still be accessed remotely without my knowledge?
My Windows user account (admin) is password protected and I'm wondering if my PC can still be accessed remotely without my knowledge.
1
vote
1answer
26 views
Penetration testing with WMAP, only for my domain, not the others with the same IP?
My domain got massively hacked, so I'm doing some penetration testing with it using WMAP and NMAP etc.
However, I believe it's on shared hosting, so running tests on 182.34.xx.xxx (the IP address for ...
1
vote
2answers
43 views
How to safely store passwords to access several servers? [duplicate]
I administrate several Windows servers, and I have run into this "how do I maintain all my passwords" problem.
The servers in question are all stand-alone and distributed all over the world. In other ...
1
vote
1answer
27 views
VLAN & Communication
I'm working on a project regarding Network Security and I've come to the topic regarding VLANs.
I was wondering if it is possible to set up multiple VLANs (VLAN0, 10, 20, 30) in a way that all VLANs ...
0
votes
0answers
22 views
How to see which program is sending malicious output traffic with ZoneAlarm?
I recently installed ZoneAlarm on my PC and in computer protection I see some output traffic has been blocked. However, I can't see which program is sending that traffic. How can I identify the ...
0
votes
1answer
66 views
Why Wireshark is not showing high layer packets like ICMP/IP/UDP? (Only broadcast packets are shown)
I am using Wireshark for 802.11g sniffing. The AP is not using any encryption. These are my observations:
The vast majority packets are beacons and the probe requests.
If I filter out beacons using ...
-2
votes
1answer
23 views
Best Inexpensive Computer for the Network Security Toolkit [closed]
I want to have a computer monitoring my network with the NST (http://www.networksecuritytoolkit.org/nst/index.html) and was wondering what the best cheap computer to run it on would be without slowing ...
-1
votes
0answers
20 views
Cisco asa 5500 series - Logging VPN connections to easily search connection history [closed]
We have a fresh requirement to log information to do with vpn connections.
The ultimate goal would be facilitating IT management being able to easily review when someone had been connecting / ...
1
vote
0answers
37 views
Proxy inside SOCKS 5 proxy
There's a secure LAN with a computer in it. This computer is configured with automatic proxy settings. A .pac file is used for this. With this automatic proxy configuration the computer can reach all ...
2
votes
1answer
57 views
Is there a security risk if I contribute CPU resources?
I am looking at donating some of my surplus processing to a worthy cause like folding@home or World Community Grid.
I have two options that I am looking at, a dedicated old Optiplex that I hate to ...
0
votes
2answers
86 views
How does the Operating system stop IP spoofing?
I wrote a program which uses a raw socket to craft some packets with spoofed IP.
The raw socket for sending packets is:
// create raw socket
if ((sd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) ...
1
vote
4answers
63 views
Can Linux Distro be determined by remote scan?
I received the following message from a network administrator
A scan from the campus nessus scanner detected the above named device as running Ubuntu 11.10
Is it actually possible to detect the ...
0
votes
0answers
23 views
Running iptables on Planetlab?
I am trying to run tcpcrypt (www.tcpcrypt.org) on PlanetLab. The tcpcrypt uses iptables to install firewall rules. But when I run the launch script or run the iptables command I receive the following ...
0
votes
1answer
44 views
How to secure my windows 7 WiFi internet shared(hotspot)?
I turned my laptop into Hotspot and am sure you understand this. So now I have problem with WPA2-personal that can't be connected by some devices like Iphone. lets leave this. Now I want to either ...
0
votes
1answer
66 views
UDP packet and firewall
I notice when I send udp packets from computer A to computer B,
B can receive the upd packets correctly
but if I send udp packets from computer B to computer A
the udp packets are not received
A and ...
1
vote
0answers
72 views
How do effective FULL removal of TOR from Ubuntu 12.04
After installing TOR, privoxy & anonproxy on my system, I found out that some functions on my browser had become unavailable and I didn't found the way to solve all the issues there, so I decided ...
2
votes
4answers
300 views
Allow “friends” to use my Wi-Fi; prevent them from using my wired routers
I have multiple houses and I use basic Cisco routers (Linksys E2500) at each.
I allow my friends to use the Wifi, but my computers are wired in, and I'd like to somehow prevent my friends from ...
1
vote
1answer
67 views
Packet Forwarding Linux Server
i am trying to configure the Kernel of my Linux server so that It will not act as router, for more security . The point is not to forward packets.
i have found this:
echo "o" > ...
0
votes
0answers
28 views
Secure TCP based protocol through an application layer firewall
I have two networks, one considered secure, lets call it A and one considered insecure, B. The software I need to use, uses HSMS, a protocol based on TCP with no security built in.
Now the problem is ...
0
votes
1answer
95 views
Force the use of OpenDNS with an Edimax router
I am using an Edimax router on my home network and have set the default DNS addresses to those of OpenDNS's Family Shield. But now I realise the protection is safe only if I force the use of OpenDNS ...
0
votes
1answer
428 views
Performing local security checks with OpenVAS 5 from Backtrack 5 r3
I'm trying to perform local security checks using OpenVAS on a remote machine, from my Backtrack5r3 machine. I have followed the official OpenVAS guide Howto: Perform local security checks and I have ...
0
votes
1answer
57 views
Kerberos? Still Confused
I come here asking a simple (yet confusing) question.
I have extracted the folowing from cain & able:
PRIVATE.ELMBROOKSCHOOLS.ORG\17grossa ...
3
votes
6answers
289 views
How do I firewall a machine against the local (wireless) network while still allowing the machine to route internet traffic?
I have a shared DSL connection, and I know that some of the users constantly get their computers infected, so I worry about network security. My computer is the only one wired to the modem (which is ...
2
votes
4answers
96 views
how to add remotely controllable machine to home network, without sacrificing network security?
The following setup:
I would like to add a machine (running windows server 2008 r2) to our home network, such that this machine has access to the internet, and such that it can be accessed (with full ...
0
votes
2answers
184 views
How do I access a website blocked in my country?
Last year there were numerous cyber attacks on Israeli banks, so they just blocked access to all foreign countries. Is there a way to bypass that? I tried using a proxy, but it didn't work out.
0
votes
1answer
54 views
Is there any reason to upgrade from a Linksys WRT54G from a security perspective?
I'm currently running a Linksys WRT54G with the latest firmware. I was recently thinking about newer routers and I realized that aside from new features (usb drives, media, etc) and faster speeds ...
0
votes
0answers
50 views
Dsniff doesn't capture any information
I'm testing if I can capture any useful information by using dsniff tools. First, I set my computer as wireless access point - that is I can monitor all traffics if a user connect to my access point ...
2
votes
1answer
103 views
How do I figure out if my wireless network has WEP, WPA or WPA2 security via command prompt on Windows XP?
I understand how to check what security protocol my wireless network connection is currently using by going to the Wireless Network Connection window like in the following example
but how does one ...
2
votes
2answers
92 views
A computer on my network is hitting my machine
I'm trying to discover the nature of this, since it appears to be a relatively new phenomena and I don't know what it could mean (probably nothing good). The sign that I got of it was a long list of ...
2
votes
1answer
92 views
Understanding Safety of open ports
I am a D-I-Y type of guy and have managed to setup Apache on my LAN and make it accessible via WAN over port 80 and Tomcat on port 8080.
I aim to possibly get a home web server up (will calculate the ...
0
votes
1answer
159 views
Electric shock when touching my networked installation (behind UPS)
Every time I touch my computer, the TV stand, the switch or when manipulating the shielded network cables if I touch my central heating (just next to the installation) I get an electric shock.
If I ...
2
votes
2answers
78 views
Why is it safe to view pictures in e-mails from a browser but not from a mail client?
Mail clients have an option that is turned on by default to not display pictures in emails for security reasons.
However browsers will always automatically display pictures in emails.
Why is viewing ...
0
votes
1answer
89 views
Restricted ports to non-admins on Windows 7
I work in a restrictive desktop/network environment and I am not an admin on my laptop. The ports available to me are limited. E.g. when I tried running Tomcat, the system refused to open a socket ...
3
votes
2answers
2k views
How to use OpenVPN through a restrictive firewall?
I'm currently in the situation of attempting to setup OpenVPN on a personal VPS, for connection primarily through an overly restrictive firewall. All of the setups mentioned below work when used ...
0
votes
0answers
12 views
Disable Solwise Security
Does anyone know how to disable the push-button security on those solwise made ethernet over power plugs? I'm trying to connect a newer model with that version of security to an older network without ...
1
vote
1answer
361 views
What does tor NEWNYM in tor do?
Can someone explain to me (in layman terms if possible) what sending tor the signal NEWNYM does?
I have read in several blogs that it should improve performance and/or improve anonymity but I could ...
29
votes
3answers
2k views
Can admins monitor my activity locally even when I use a VPN?
My school has one of those super overreacting web blockers (specifically Fortisnet) that blocks things that should be accessible by a high-school senior trying to research projects. Despite many ...
1
vote
1answer
706 views
mystery Internet traffic to port 445
Recently, I noticed traffic from the office network to TCP port 445 on the Internet [a]. Below are the Linux firewall log entries to Facebook's network [b] and Google's network [c]. I would like to ...
0
votes
0answers
325 views
Open ports in Windows 7, firewall, public network, port 445
I selected "public network" in Windows 7. Windows is listening on TCP port 445:
TCP 0.0.0.0:445 WIN7TEST:0 ABHÖREN
The corresponding incoming firewall rule isn't activated ...
0
votes
1answer
76 views
Securing a subnet
I have a primary (Actiontec used for wired) and a secondary (Linksys wireless) router.
I want the Linksys wireless router to be as isolated as I can from my Actiontec LAN connections.
Currently I ...
0
votes
1answer
110 views
How are ADSL2PLUS rates/speeds assigned? [closed]
Just curious.
My ISP (and also Telco) recently upgraded us to their NGN (IP-based) network.
In the past, in order to authenticate with the IPDSLAM, we use PPPoE to provide the login credentials that ...
7
votes
6answers
2k views
Port scan revealed port 1111 open. What is it?
I am new to systems administration and have a new server running a website with http (at port 80), https (at port 443) and ssh (at port 22).
I did an nmap port scan using my personal laptop and other ...
0
votes
1answer
659 views
Access Control List ACL to Limit an Account
How do I create an ACL in Windows 7 that prevents a public account (called Users) on our Media PC from being able to Read/Write to a particular folder while still allowing me to connect to it over our ...
2
votes
2answers
292 views
Port Scan: What is “netvenuechat”?
I was doing a quick port scan at work (Nmap 6, OS X 10.6.8), and I noticed that nearly all of the computers around me were running a service called "netvenuechat" on Port 1023. Although I've searched ...
3
votes
1answer
61 views
Other user SSHed from my hardware
While logged into our HPC cluster I used w to check out who else was logged in. I happened to notice that it looks like there's another user logged in from my (personal) computer;
19:04:47 up 40 ...
0
votes
1answer
61 views
What does it mean when we say that the UDP segment is less than that of an IP segment?
I was going through the signature IDs of Cisco IDS and came accross an ID 4050 which says the above. What does it actually mean? Can anyone explain this to me.
2
votes
1answer
99 views
What is the safest way to set up SQL Server for remote access?
I'd like to be able to make my dev database server accessible over the internet. I and half a dozen dev applications will be the only users. I have a hosting account that includes SQL Server, but I ...
1
vote
4answers
168 views
Limiting the access to internet for a small network
I've got a network with 10 client computers connected to a switch then and into a NIC on a "server".
The server is used to provide a training software over the LAN. The client computers have thus not ...
0
votes
0answers
53 views
Maximum protection on a computer network? [closed]
I would like to secure as much as possible a computer I am using to sync sensitive data files from work to my home pc. The syncronisation is being done by only 1 software is there a firewall to allow ...
2
votes
1answer
1k views
How to quickly Enable/Disable Internet Traffic so that it ONLY goes to ONE program?
What Firewall program (preferably free) can I use to quickly enable/disable internet traffic so that it only goes to one program?
For example, sometimes I need only one program (Program X) to be ...
