Collaborate Disseminate
I am looking for some examples of log files for DoS or DDoS attacks that show a SYN Flood or a HTTP/Layer 7 Flood. I have had a google, but can’t seem to find anything.
Would the incoming packet sizes differ between a SYN Fl… Continue reading What do DoS/ DDoS TCP SYN Floods and Layer 7/HTTP floods look like on a firewall log?
When checking my router tonight I looked at its security log. I saw thousands of blocked tcp traffic. Why are these considered security events? The log shows many blocked tcp incoming request from many different ips and on di… Continue reading Router Security Log Shows Many Blocked TCP Connections
Mainly I don’t know anything about the cryptography, but I have a question. I am using a Quectel modem, and I am establishing a TCP connection between it and the server. Quectel module is a GPRS module, and I am controlling i… Continue reading Key Management TCP
I use TLS for securing my client-server TCP communications.
I have a Qt server and Android and iOS clients. For TLS connection I use only server side certificates, so only clients sure that they are connected to the real serv… Continue reading What additional protection required for authentication and messages sending in addition to TLS?
I’m creating a Qt-server which uses SSL via TCP. Clients can authorize themselves on the server using login and password and become users. Only users can perform any actions with their accounts. Unauthorized clients can only … Continue reading How to improve the authorization and client-server interaction scheme?
The Transmission Control Protocol (TCP) drives major internet operations such as video streaming, file transfers, web browsing, and communications, accounting for very high percentages of fixed access internet traffic and even more of mobile internet … Continue reading An Overview of the TCP Optimization Process
Clouldflare launches DNS-over-HTTPS service called 1.1.1.1 that it says will be a “privacy-first” DNS service for consumers. Continue reading Cloudflare Launches Publicly DNS-Over-HTTPS Service
Below is a screenshot of a text message my mobile device received within the past hour. It contains the text “6.216.198.5:8006/Y/0329235420500012000110000” from the number “1111301000”. I am curious if anyone has any insight … Continue reading Is my iPhone being targeted by the US Department of Defense?
A lot of people seem to ask this question, as there are a bunch of posts about it; however I feel like none truly answer the question (that I have found).
I want to understand why Nmap decides to tell me that a specific port is "filte… Continue reading Nmap – Closed vs Filtered
I am an operator of some public service which is run on some OVH’s VPS.
Recently I was contacted by an anonymous contact, who suggested that the service was BGP-hijacked and some sensitive info of users may have been leaked… Continue reading What can I do to prevent BGP hijacking as an admin of some OVH’s VPS?