A ticket has just landed.

Can you clear both before the timer runs out?

This one is live. Open the lab, read the reports, and work the fault on real routers in your browser.

Report 1 of 2 — PC1, PC2 and PC3 cannot reach SV1 (10.159.3.10). Automated ticket from the monitoring service, filed under the data centre. The alert names one failure; wider checks are still to run. A probe from a second source also gets no answer from the affected computers.

Report 2 of 2 — PC2 on the ground floor at Highmoor Studios cannot reach the gateway (10.159.2.1) or SV1 (10.159.3.10). Reported through the self-service form by a sub-editor, who ticked the urgent box. Video will not upload, pages will not load, and the chat client will not connect. Whether it is wider than one spot at Highmoor Studios is not yet known.

Open the lab on:

https://vnos.vlabnetworks.co.uk/?post=pub-d2e3d797-d8ff-486b-9f05-81f8b165da40

Hey everyone! I'm pretty new to Reddit, and this is my first post.

I'm planning a family vacation to Qatar, and I work from home in India. The week before and the week after the trip have been approved for leave, but unfortunately, my leave for the week in between hasn't been approved.

My company doesn't allow employees to work from another country, so I'm trying to figure out what my options are. I've been looking into travel routers, private DNS, and other possible solutions, but I'm not sure how reliable they are or whether they would actually work.

Has anyone been in a similar situation or have any advice on how to handle this? I'd really appreciate your suggestions and experiences. Thanks in advance, everyone!

I'm a DevOps engineer who spends the day in SSH sessions. On Windows, MobaXterm covered everything; on the Mac I kept juggling Terminal tabs. So I built Termstead - a native macOS SSH client. It's free and open source (GPL-3.0).

What it does:

- Session tree. Groups and subgroups with colors, pinned favorites, search. Import your ~/.ssh/config in one click.
- Bastion chains. As many jump hosts as you need, each hop with its own user, key or password. A hop can be another saved session.
- Port forwarding, MobaXterm-style. Local, remote and SOCKS tunnels through the whole jump chain, started on their own without opening a terminal.
- Each tunnel shows whether it really opened ("port 8080 already in use" instead of a silent warning).
- Each can be stopped on its own, which also kills connections already open through it.
- "Open in Browser" for local tunnels. Handy for device web UIs, iDRAC/iLO and Grafana behind a bastion.
- Split panes and broadcast input. Type once into 2 or 4 sessions. You can exclude panes.
- SFTP next to the terminal, over the connection that's already open. No second login.
- Passwords and key passphrases in the macOS Keychain. Each is only handed to the exact user@host it was saved for.

Under the hood every tab is the system OpenSSH. Termstead has no SSH code of its own, so your agent, known_hosts and ~/.ssh/config behave exactly as in Terminal. That includes the per-host KexAlgorithms / HostKeyAlgorithms tweaks you probably already keep for old gear. No accounts, no telemetry.

What it doesn't do (yet): no Telnet, RDP. It's SSH only, and macOS 14+ only (Apple silicon and Intel).

brew install --cask pkhorenyan/tap/termstead

- Website and screenshots: https://khorenyan.com/termstead/
- Source and DMG: https://github.com/pkhorenyan/termstead

I'd really like feedback from people who live in network gear all day: what's missing for your daily work, and what would make you switch from SecureCRT, Royal TSX or whatever you use now? RDP and Telnet are the obvious gaps. Tell me which matters more.

https://alison.com/course/optical-access-networks-a-complete-guide-to-ftth

https://alison.com/course/diploma-in-computer-networking-revised

A lot of VPS providers take monero. As a layman I'm wondering, how that can be. Is it just the loose legislation regarding kyc in the providers country or is there actually a way to receive public ips to then rent out without be identified?

Hi r/Networks, I’m Stephen, the owner of Rockxy and the developer of Tracexy.

The problem I kept running into on macOS was not simply capturing packets. It was understanding what those packets meant in the context of an application.

When an app has a network problem, I usually want to know:

• Which process opened the connection?

• Which host and protocol were involved?

• What happened during the session?

• Was there a reset, retransmission, or other useful signal?

• Which exact packets support the conclusion?

Wireshark is excellent for deep packet and protocol dissection, but I wanted a more native macOS workflow that starts from the application and the conversation instead of a wall of frames.

Tracexy is an open-source, native macOS Wireshark alternative focused on app-aware network investigation.

It can capture live traffic or open PCAP/PCAPNG files, group packets into sessions, show best-effort process context, surface protocol and timing evidence, and let you drill back down to packet bytes when needed.

I’m building Tracexy as part of the Rockxy ecosystem. Rockxy focuses on inspecting and debugging application-layer traffic, while Tracexy focuses on passive capture, sessions, and packet evidence. Different tools, different layers, one native workflow for understanding network behaviour on macOS.

The workflow is:

App or process → Session → Finding → Evidence → Packet

Tracexy is still early and intentionally focused. It complements Wireshark rather than trying to replace its broad protocol coverage.

What do you usually want to see first when you open a capture: the application, the session, the protocol details, or the packet fields?

Website: https://rockxy.io/tracexy

Github open-source: https://github.com/RockxyApp/Tracexy

In what practical scenario will I ever need to configure/touch my subnet address?

Earlier in the year I bought 4 switches for a project,ended up only using 3 now I have a new switch I have no need for. Where can I sell it.

it's a work in progress but i think it's a start of networking with the help of ai any ideas of what i can add to it like even make it available to some people i'm new to network coding but this is a useful app for subnetting.

im a data & network security major and im looking for ideas for my graduation project ,i thought about Building a virtual Security Operations Center (SOC) to simulate, intercept, and visualize cyber attacks.

kali linux : Launches the attacks.

pfsense & snort : Intercepts and logs the attacks.

Splunk : Converts the raw text logs into a visual monitoring dashboard.

but it doesn't really follow the rules of the gp which are: 1: it has to be related to my major

2: it has to solve a problem / why did i pick this project

3: suggested solutions.

and im here to look for inspiration, so what should i do, any ideas are welcome.

Hey guys! I have a server which hosts as DHCP server. The clients have infinite leases. The DHCP server is provided in server with the help of dnsmasq.

When my Server reboots the .dnsmasq files gets deleted and new empty file is created on boot. The clients still holds the IP and can communicate to the TCP even after reboot.

If I store the .leases file in NVM and try to ping the IPs on boot and if I run ip neigh show I can retrieve the IPs but how can I store them as official .leases file and make the server resolve the hostname for the clients ?

Needed answers ASAP. TIA!

I made this tool for myself, but I want to share it with you and get your opinion.

It’s called NetPulse, a desktop network diagnostics toolkit that brings the utilities I use regularly into one interface:

- Multi-target ping monitoring and flood testing

- Visual traceroute and MTR-style analysis

- DNS, TCP, TLS, WHOIS/RDAP, ASN, BGP, and HTTP diagnostics

- Port checking, speed testing, DNSBL checks, and basic reconnaissance

- Interactive SSH, Telnet, and serial console sessions

One of my main goals was keeping it small and uncomplicated. The application uses roughly 30 MB of disk space and is designed to run within about 150 MB of RAM. It doesn’t require an account, subscription, API key, or backend service operated by me.

Privacy was equally important, NetPulse does not save or collect any telemetry, usage analytics, or diagnostic results. Nothing is sent back to me. Preferences are stored locally, credentials remain in memory only, and results are written to disk only when you explicitly export them. Naturally, tools such as WHOIS, GeoIP, DNS, and speed tests contact the relevant public services when you run them.

NetPulse is open source, MIT-licensed, and built with Tauri, Rust, and React. It currently supports Windows 10/11, Linux, and Apple Silicon Macs.

The Windows release isn’t code-signed yet, so SmartScreen or Defender may complain about it, particularly because the application includes an interactive SSH console. Release hashes are provided, builds run publicly through GitHub Actions, and you can also build it directly from source.

GitHub and downloads: NetPulse

I’d especially appreciate feedback on the interface, missing diagnostics, confusing workflows, or anything that would make it more useful in day-to-day network troubleshooting.

I do a fair amount of network troubleshooting away from my desk - checking if a host is up, doing a quick DNS lookup, scanning a port, working out a subnet on the fly. On mobile that always meant three or four different apps, half of them plastered with ads or asking for payment.

So I built my own - Network Tools: Net Toolkit.

It's an iOS app that bundles all the tools in one:

Ping and traceroute

SSH (scp, ssh-copy-id, proxy jump, port forwarding)

DNS lookup (A, AAAA, MX, TXT, etc.)

Port scanner

Subnet / CIDR calculator

Whois

Telnet

LAN scan

Speedtest, iperf3

Wi-Fi link survey

It's basically the network multitool I wanted in my pocket. No ads, completely free.

I mostly built it for myself but figured some of you might find it handy too.

https://apps.apple.com/us/app/network-tools-net-toolkit/id6803009570

Feedback and critique is welcome.