#OpenSSL
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Want to check TLS/SSL certificate expiration date from #Linux, macOS or UNIX command line? Try:
DOM="your-www-domain-name-here"
PORT="443"
echo | openssl s_client -servername "$DOM" -connect "$DOM:$PORT" | openssl x509 -noout -dates
-> See: How to check TLS/SSL certificate expiration date from command-line
#linux#unix#macos#sysadmin#freebsd#openbsd#netbsd#centos#rhel#fedora#archlinux#ubuntu#debian#openssl#TLS#SSL#infosec#security
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Trying to set up a crude prototype system to test BIMI using open-source tools
This was originally posted on the Information Security StackExchange (a technical Q&A site) but I was told that it was off-topic and instructed to delete it and post it on a blog. So, well, here it is. May it be useful to someone googling for an answer!
TL;DR? I’m looking for information on how to embed a logotype on a X.509 PEM certificate, for the purposes of doing some tests with BIMI, using…
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PHP OpenSSL Encrypt & Decrypt
Merhabalar, bu yazımda PHP OpenSSL Encrypt & Decrypt konusuna değineceğim. Daha önceleri Encrypt & Decrypt konusunda bir yazı daha yazmıştım. Her ne kadar konu olarak aynı olsa da yöntem olarak farklı oldukları için yeni bir yazı olarak yazıyorum. Üstelik şifreleme üzerinde farklı programlama dillerine dair bir çok yazım var. Hepsini hemen aşağıya ekliyorum.
PHP MD5 Şifreleme Kullanımı
C#…
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#LinuxUpdates#AlmaLinux#RedHatEnterpriseLinux#Oracle#OpenSource#pfSense#Netgate#SecurityUpdates#OpenSSL#LinuxNews
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How to Apply OpenSSL on i.MX8M Plus EVK?
Check out the Forlinx Embedded OKMX8MP-C EVK, featuring the NXP i.MX8M Plus processor with AI computing power up to 2.3TOPS. With flexible I/O interface configuration and advanced multimedia resources, it's perfect for lightweight edge computing needs. And with OpenSSL tools ported in, you can easily generate passwords, compute hash values, and test library performance. Learn more about this powerful evaluation kit today!
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So installieren Sie OpenSSL 3 unter Ubuntu 20.04: Eine Schritt-für-Schritt-Anleitung
In dieser Anleitung erfahren Sie, wie Sie OpenSSL 3 unter Ubuntu 20.04 installieren.
OpenSSL ist...
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ICS Patch Tuesday: Siemens Fixes 80 OpenSSL, OpenSSH Flaws in Switches
ICS Patch Tuesday: Siemens Fixes 80 OpenSSL, OpenSSH Flaws in Switches
Home › ICS/OT
ICS Patch Tuesday: Siemens Fixes 80 OpenSSL, OpenSSH Flaws in Switches
By Eduard Kovacs on December 14, 2022
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Industrial giants Siemens and Schneider Electric have addressed over 140 vulnerabilities with their December 2022 Patch Tuesday updates.
Siemens
As usual, Siemens released far more advisories and addressed far more vulnerabilities. Specifically, the company released 20…
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OpenSSL 3.0 RCE
OpenSSL 居然出了一包 RCE：「CVE-2022-3786 and CVE-2022-3602: X.509 Email Address Buffer Overflows」，security advisory 在「OpenSSL Security Advisory [01 November 2022]」這邊。
看第一個 CVE-2022-3602，本來看到這個 CVE 號碼為覺得應該是年初的號碼 (現在已經三萬多了？)，但依照官方的說法是十月的事情，看起來是用假名回報 (Polar Bear)：
This issue was reported to OpenSSL on 17th October 2022 by Polar Bear.
The fixes were developed by Dr Paul Dale.
在 CVE 的頁面上也可以看到「Date Record…
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Comprobar manualmente si un servidor de correo responde en un puerto concreto
Comprobar manualmente si un servidor de correo responde en un puerto concreto
Esta mañana tenía que ver por qué un cliente no podía enviar correos desde el software que le proporciona mi empresa, el cliente insistía en que había configurado bien su cuenta pero la aplicación devolvía un error en la capa de transporte… así que algo no estaba bien. Me pareció raro que el puerto del SMTP fuese el 25 porque su proveedor de correo normalmente usa el puerto 465 y autenticación…
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(via https://youtube.com/watch?v=c89sNuxzzdo&feature=share)
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SSL and TLS Training for Always On VPN Administrators
SSL and TLS Training for Always On VPN Administrators
Understanding Transport Layer Security (TLS) is essential for Always On VPN administrators. TLS (formerly Security Sockets Layer, or SSL) is used not only for Secure Socket Tunneling Protocol (SSTP), the protocol of choice for the Always On VPN user tunnel in most deployments, but many other technologies such as secure websites and email, Remote Desktop Protocol (RDP), secure LDAP (LDAPS), and…
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#Always On VPN#AOVPN#certificates#cipher#cipher suites#cryptography#discount#discount code#education#enterprise mobility#learning#Microsoft#Mobility#openssl#Practical Networking#Remote Access#security#SSL#TLS#TLS 1.2#TLS 1.3#training#transport layer security#video#video training#VPN#Windows#Windows 10#Windows 11#Windows Server
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DC-9 Vulnhub Walkthrough -OSCP way
DC-9 Vulnhub Walkthrough -OSCP way
Recently, My focus turned more towards OSCP and I am thinking of taking the exam. After reading tons of people’s experience over Reddit, I took some notes on what would be my way of studying for this. It isn’t easy from the looks of it and to win with time, I need a lot of practice. Some articles which I found useful are…
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#DC9#editing /etc/psswd#hacking#linux priv escalation#openssl#OSCP#overthewire#path traversal#python script for sqlinjection#SQL Injection#union based SQL Injection#walkthrough
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