Questions tagged [internet-security]
The internet-security tag has no usage guidance.
165
questions
0
votes
0answers
9 views
Test of cybersecurity for my postfix mail server [closed]
i finished to create my postfix mail server with anti-spam spamassassin and anti-virus clamav and it work perfectly, i added to my domain spf,dkim and dmarc .
so new i'm searching how can i do test ...
-6
votes
2answers
65 views
Why are wireless not secure? [closed]
I would like to ask Why are wireless networks not considered secure despite the presence of some safeguards such as encryption, reliability, SSID, use VPN, and integrity?
thank you.
1
vote
3answers
154 views
Someone's trying to hack me, don't understand how they are bypassing my router, please help me understand?
Mar 5 00:39:44 deepcool sshd[259265]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.220.78 user=root
Mar 5 00:39:47 deepcool sshd[259265]: Failed ...
1
vote
1answer
46 views
Failed login attempts, constant brute force
I'm running a VPS with an iptables firewall (configured via ufw). I have shut down all traffic with:
sudo ufw default deny incoming
sudo ufw default allow outgoing
After that I have opened certain ...
0
votes
0answers
16 views
Shared Cloud Storage for Teams with option to upload only and no download
I am looking for a shared cloud storage for teams. Ideally the admin can assign what directories the members can see. And the members can only upload files and see the contents in the directory but ...
0
votes
0answers
34 views
Secure database connection from public IP
We have an Android App and a website that requires connection to local database.
Working Scenario is
Online Website (.net) is in one dedicated virtual server with public ip.
Then we have another ...
1
vote
0answers
34 views
Network Protocol Violation error for some websites when using public wifi with no VPN. Is this indicative of a hacking attempt?
Below is the error I receive in Firefox when accesing Gmail, Google Search and other websites owned by Google.
The site at https://mail.google.com/mail/gb/u/0/#inbox has experienced a network ...
1
vote
0answers
90 views
Can I decrypt a gpg encrypted file on any computer?
I am storing some 2FA recovery keys inside a txt file, which I then encrypted using gpg -c file, I can decrypt it fine in my own computer (virtual machine actually).
But I was wondering, if something ...
0
votes
1answer
20 views
If I were to set up a router to route network traffic directly through a VPN, do I lose the advantages of PFS?
I have been learning about the advantages of connecting to the internet via a VPN but before I jump in with both feet I’ve decided to do some reading around the subject to understand what I’m getting ...
0
votes
3answers
1k views
Configuring Windows to only allow traffic through VPN
I would like to configure Windows 10 to only allow traffic through a VPN connection. For example, Firefox won't have internet access if the VPN is not connected. I want to be able to turn this ...
1
vote
2answers
112 views
Am I broadcasting or what?
My internet speed is bad. When I connect with a cable bypassing the router, it is good. Router seems to be fine however, and configuration is seemingly OK too. Thinking about interference, I looked ...
0
votes
0answers
14 views
Privacy Use open vpn through unsecure server
I want use a unknown server through open vpn .
I don't know the server is safe or not .
Is open vpn keep my information safe ?
Is that ok to use that ?
The manager of server can spy my information ...
2
votes
1answer
2k views
Dealing with .logicdata file
I am practicing for CTFs and have this assignment on hardware security.
I was given a .logicdata file and wonder how I can open it to analyze it?
0
votes
2answers
165 views
How to access a website on a separate vlan (DMZ)
I have an Apache webserver (on Raspberry PI) running in my home environment.
This website is accessable from the Internet by port forwarding on my router.
The protect my LAN I have defined a separate ...
1
vote
1answer
28 views
Pfsense firewall and modem
Should pfsense be connected directly with the ISP or should it sit behind the ISP provided modem. If so, should we use pfsense for security reasons only or to improve performance as claimed in this ...
-1
votes
1answer
122 views
How to save browser cookies in ram?
I have a laptop I use in public where I access some sensible information over the browser. I already encrypted it and cookies are automatically deleten when I close the browser. The problem is, if ...
2
votes
1answer
29 views
Does chaining 2 VPN's with VM need extra settings?
Hi I am wondering if chaining 2 different VPNs from 2 different VPN providers through a Virtual Machine needs any extra routing settings or any extra settings in general.. I have searched and I've ...
2
votes
3answers
3k views
Security differences in going online by WiFI vs by Ethernet lan cable
Which relevant differences are there when comparing: going online with a computer via WiFI connection or using a Ethernet port and connect with Lan cable to the computer?
1) Aspects such as: VPNs, ...
1
vote
0answers
21 views
DNS Server is flooded with localhost resolution
I have a public DNS server and can be accessible by anyone. Recently we have been flooded with thousands of DNS queries trying to resolve a "localhost" such as these:
Is this supposed to be intended ...
0
votes
1answer
25 views
Where can I find wifi profiles?
Laptop recently got lost. Is there any way to grab the wifi profiles off of that laptop? Microsoft's sync doesn't work as both PC's have to be on a running for it to transmit data.
For example I ...
0
votes
1answer
62 views
Motorola MG7700 on XFINITY, mysterious user IDs and passwords
I did a "backup" via the user interface on my Motorla MG7700 modem/router connected to Xfinity. In the dump, I found all IDs and passwords are unencrypted. Motorola acknowledges that much.
What ...
1
vote
1answer
65 views
How to show keys in netsh without mentioning the name parameter
Queria saber se no netsh show profiles key=clear,ao invés de colocar o ssid de cada rede para ver o "Conteúdo da chave", poderia mostrar de uma forma geral. Já tentei usar o "*" no name,mas não deu ...
0
votes
1answer
36 views
Is an open port on Router a threat if it's forwarded to a host which not exist
Consider we have port 65434 open on router (open for WAN). The port forwarding is done to a host which does not exist. Can a hacker exploit this open port on router which leads nowhere?
0
votes
1answer
52 views
Options to protect open ports
What are the best/common options to protect an open Port? For example for Plex or torrent
A few I can think of:
change Port number from standard to random unused one to help obfuscate
Setup firewall ...
0
votes
1answer
87 views
Can somebody with link can edit exe or APK files on google driver?
If I share an EXE or APK file with the option of editing on Google Drive, can anyone actually change it? I mean the file?
0
votes
1answer
327 views
Secure shared internet connection
I share my internet connection with a neighbor. They connect through wifi. I have computers running Windows and Linux, Android smartphones, Chromecast and TV.
Question: how can I prevent my devices ...
0
votes
1answer
90 views
How safe is it to use Gmail, Facebook, YouTube, Amazon on Public Wifi or more official Wifi such as Apple Store Wifi?
First of all, somebody could be pretending to be the airport Wifi by setting the Wifi ID to be "Free Airport Wifi", so it might not be the "official Wifi".
And either it is "official" or "non-...
0
votes
1answer
91 views
Are these signs that my computer is being monitored or hacked?
I'm using this ACTalk.exe for work. It's an online classroom. Several months ago, whenever I look at Windows Performance Monitor, I can see ACTalk.exe connecting to several IP address which I think is ...
19
votes
3answers
7k views
Can an untrusted VPN client monitor my network activity?
My scenario is:
This is my own Windows 10 machine.
The client has installed a VPN that connects me to their servers. The VPN is auto-connected when my Windows 10 machine is booted up.
If I am not on ...
1
vote
1answer
2k views
How can I add an exception to the Content Security Policy in Firefox 56?
I am using Firefox 56 because it is the last version that still allows me to use my add-ons.
Today Twitter has changed something in their coding, so that the videos posted on Twitter stopped playing ...
0
votes
1answer
141 views
Need to stop ex husband from getting into my desktop [closed]
First, I’m VERY sorry if I am in the WRONG place here. I know my way around computers, compared to all of you, probably NOT AT ALL! I am in the middle of a divorce from a VERY abusive man who is ...
0
votes
0answers
38 views
Apache is Adding Javascript in HTML File
Today I got a strange situation where my Apache Server is adding a bit of Javascript code just before closing tag. I tried to find out but could not success what is going here on the server. I ...
-2
votes
1answer
182 views
Wifi Security Vs Authentication Vs Encryption
While configuring a TPL Wi-Fi Access Point I found out that there are three similar parameters in it which need to be set to make it work properly. If these parameters are not set correctly then some ...
-1
votes
1answer
44 views
Is having all wireless devices (both visitors and home users) use a guest wireless SSID a bad idea?
I'm reluctant to have any wireless devices with visibility into my home LAN systems (PCs / home servers). So I was thinking of having all wireless devices use the guest SSID. Is this a bad idea? I don'...
1
vote
1answer
125 views
Emails are automatically sent to Chinese addresses - scam/spam/virus?
My IT-colleagues have noticed that a (non-IT) user in our work network has some strange things going on in her mailbox.
In the user's sent folder we noticed a bunch of emails with all Chinese ...
2
votes
1answer
60 views
Edit Firefox multi container configuration
I have several containers configured on my Firefox and I have been using for a while, so container have information associated.
However, sometimes I was not very focused and I used the wrong one for ...
0
votes
1answer
69 views
Remote machines making unauthorized SSH login attempts
I recently configured my external-facing router to forward traffic to port 22 on one machine on my LAN. SSHD is the only service listening on port 22.
Immediately I received traffic from IP ...
0
votes
1answer
88 views
NMap Result -A reference meaning
I ran nmap command for ssl enum cipher and got the output something like this
(Could not copy paste due to intra network restrictions )
TLS1.0 TLS----SHA256 -A
--- Cipher Prefernce -...
1
vote
2answers
3k views
COMODO antivirus : Getting message “Security agent could not be started” after uninstallation
I had COMODO antivirus installed in my Windows 8.1, 64 bit machine. I recently uninstalled it. But whenever I restart my machine it always prompts me this error message.
Does it mean the ...
0
votes
1answer
55 views
Are my credentials secure when I browse through a corporate web-proxy?
By "my credentials" I mean the username and password that I provide upon log-in in various web sites, such as Google, Microsoft etc.
My company is allowing browsing through a web-proxy.
What ...
-4
votes
1answer
43 views
Entering a random number sequence seed under surveillance [closed]
I'm trying to transmit a continuous sequence of random numbers from my computer over to another country (for validation purpose). This sequence is a series of pseudo random numbers recursively ...
0
votes
1answer
62 views
Software for home routers to block HTTPS website
I have a netgear R7000p and I am looking to block snapchat on the home router. Is there anything that could help me with this. I have tried to use OpenDNS and the website blocking functionality built ...
1
vote
2answers
2k views
Display Chrome for Windows security zone for page
Is it possible to determine in Chrome what security zone it has decided to put a page into in the same way Internet Explorer 11 displays the zone for the current page when you select properties from ...
0
votes
1answer
233 views
How do I find out what this unknown device is on my network?
Backstory:
I have a home PC network that is mixed hardwired and wireless, with a wireless access point and hardwired PCs - connected to a dual-WAN capable router, connected to a cable modem, connected ...
0
votes
1answer
630 views
IE11: security level edit bar not even visible
The security level bar is missing in IE11 (it's german, sorry for that):
I have read the documentation of some registry keys and modified them to test a few things. But I cannot make it appear. ...
0
votes
1answer
210 views
How to secure a public-facing host?
If I configure my cable modem' built-in router to forward port 80 or port 443 to my upcoming Raspbian host, what else do I need to do to un the router's settings and in the Raspbian settings to keep ...
1
vote
2answers
61 views
Security implications of using screen-capturing software to monitor a user's activity [closed]
Buried deep within the Privacy Policy of a purely cloud-based financial services business (with no software downloaded to the user's device) is the following statement:
"We use screen capturing ...
0
votes
1answer
482 views
Intercept traffic in open wifi hotspot to scare family into using VPN [closed]
I recently setup my own VPN and I love it. Now I'm staying at a hotel and there is only a public wifi hotspot that doesn't even require a password. I'm using my VPN, but my family won't listen to me ...
0
votes
1answer
53 views
Developer console activates by itself
Over the last day, whenever a friend opens gmail in any installed browser (Chrome, Firefox, Edge) on her Win 10 machine, the developer console opens automatically.
Why might this be and how to stop ...
3
votes
2answers
50k views
Internet Options to add Trusted Site Greyed Out - SysPreped Windows 10 LTSB
I just deployed an custom Windows 10 ISO I created and I can't set my local file server as a trusted site in internet options. The site button is greyed out. The only change I made in the image was ...
