DNS Security: Protect Your Online Presence

🔥Website data loss can happen anytime – server crashes, accidental deletion, or security issues. That’s why backups matter. With xCloud, you can integrate SFTP storage provider and: ✔️ Store backups securely on your own SFTP server ✔️ Automate backup schedules ✔️ Clean up storage with auto-delete options ✔️ Manage everything from a single dashboard Set up your SFTP storage provider in just a few steps and enjoy peace of mind knowing your data is always protected. Full step-by-step guide here: https://lnkd.in/dyRHcpPC

Microsoft 365 tenant migration sounds simple on paper but it’s one of the most complex projects you’ll ever run. Read our latest blog🔗https://lnkd.in/eXaMVkqb With the right plan, you can avoid the usual headaches. That’s why we put together a Tenant-to-Tenant Migration Checklist to help IT leaders stay on track and keep users happy. Author: Manish A. #Checklist #TenantMigration #MigrationRoadmap Microsoft Security, Microsoft 365, Microsoft Community

We ran a security audit on a public company's MCP server. Here's what we found: - Implemented the OAuth spec wrong. Incorrect WWW-authenticate header response and Protected Resource Metadata. - Users are getting exposed to tools they aren't authorized to. - Does not offer granular scopes in OAuth token. Users are given full privileges by default. - Tools use 17k tokens (9% of Claude 4.5's context window). Their competitor's MCP server uses half. - Typically uses 3X the amount of tools for a single workflow compare to their competitors. This means workflows take 3 times longer to run, and many times more likely to hallucinate resulting in a failed execution. This is a glimpse of what we found, the entire audit is 20+ pages long. Our proposal will help theme adhere to best OAuth and security practices, and increase the performance (accuracy + execution time) of their MCP server by 60%. We're helping teams audit their MCP servers. Message me if you'd find this helpful for your production MCP server! https://www.mcpjam.com/ #MCP

'𝐇𝐓𝐓𝐏𝐒' 𝐞𝐧𝐬𝐮𝐫𝐞𝐬 𝐭𝐡𝐞 𝐬𝐞𝐜𝐮𝐫𝐢𝐭𝐲. For example in Oggy's case, Server (LinkedIn) → CA (DigiCert). For easy understanding : 🔴 Private key 🟢 Public key Step 1: Server Setup Server generates public Key 🟢 and private Key 🔴. Then sends public Key 🟢 to CA. The CA uses its private key 🔴 to digitally sign the server’s certificate and sends back to the server. The certificate contains the server’s public key 🟢 and information like the domain name, validity dates and CA details. Step 2: Connecting Client (Oggy's PC) → DNS: Requests LinkedIn’s IP. DNS → Client: Returns IP. Client → Server: Opens TCP connection. Step 3: TLS Handshake Start Client → Server: TLS ClientHello. Server → Client: TLS ServerHello + Certificate with Public Key 🟢. Step 4: Certificate Verification Client checks certificate using its OS’s built in list of trusted CAs and verifies certificate validity, domain, and CA signature with CA’s public key 🟢 Step 5: Secure Handshake Client: Creates session key, encrypts it with server’s Public Key 🟢. Server: Uses Private Key 🔴 to decrypt. Now both share the session key. Step 6: Secure Login Client → Server: Encrypted credentials. Server → Client: Encrypted response & session cookie. Step 7: Session End Connection closes and session key discarded but the private Key 🔴 stays secret. So conclusion?? Client (Oggy's PC) → DNS → Server → CA → Server sends certificate (Public Key 🟢) → Client verifies via OS CA list → Handshake → Secure encrypted login. Hopefully this makes sense to Oggy now and has got the answers! #dataprivacy #networksecurity #encryption #learning

Most people never think about the little numbers attached to MX records in DNS but they’re the reason email works the way it does. Back in the early internet, engineers needed a way to keep messages flowing even if the main mail server went down. The answer was simple but powerful: priority numbers. In this article, I break down what MX priority numbers mean, why they exist, how failover really works, and some of the strange misconfigurations that have caused big problems over the years. If you’ve ever wondered why your email still shows up even when servers fail, this is the story behind it. https://lnkd.in/gs5NKTfN #EmailInfrastructure #DNS #MXRecords #SysAdmin #Networking #Redundancy #Failover #ITInfrastructure #EmailDelivery #TechHistory

The problem: 3 billion records were breached in 2023 alone. Your data sits in centralized servers, vulnerable and monetized without your consent. The solution: Decentralized data management where YOU hold the keys. Anryton along with Vautra is building the infrastructure where data security isn't a promise—it's guaranteed by code. �� #Web3 #DataSecurity #Anryton

NAKIVO expands Proxmox Server Solutions backup and DR capabilities in v11.1. Latest version of Backup & Replication adds MSP features, plus Proxmox VM backup functionality, while Nakivo responds to critical vulnerability it was tipped off about in February ComputerWeekly.com https://lnkd.in/eHSscHN4

Cloudflare Fundamentals – Automated reminders for backup codes - The most common reason users contact Cloudflare support is lost two-factor authentication (2FA) credentials. Cloudflare supports both app-based and hardware keys for 2FA, but you could lose access to your account if you lose these. Over the past few weeks,… https://lnkd.in/eSpr5uzM

Last week, Veeam Software released Public Beta 2 of the XCP-ng plugin, and I've had a chance to test it out in the lab this weekend. Available Features: ✅Full and incremental VM backups using CBT ✅Configurable compression and block sizes ✅Malware detection ✅VM, disk-level, and file-level restores ✅A dedicated worker VM that handles backups efficiently ✅And more What I love most is that the backup functionality is now fully disaggregated from XCP-ng, making restores simpler and less stressful. Full blog write up and screenshots available here: 🔗 https://lnkd.in/gVbhrBZz 𝗕𝗢𝗡𝗨𝗦: If you're new to XCP-ng and want to learn more, I've included my "How to Install and Setup XCP-ng" video in the link above. Vates Virtualization Management Stack (XCP-ng / Xen Orchestra) #backup #xcpng #veeam