Technology Explained
The 5 Best SSH Clients for Mac
Introduction: Best SSH Clients for Mac
In today’s digital age, remote access and control of other computers through an encrypted connection have become indispensable. Secure Shell (SSH) clients are the key to achieving this, and if you’re a Mac user, you’re in luck. Mac offers a variety of SSH clients, each with its own unique features and advantages. In this article, we’ll explore the top five SSH clients for Mac and help you decide which one is the best fit for your needs.
1. Terminal: The Mac’s Built-In SSH Client
SSH Made Simple and Free
For those with coding experience or those who enjoy the simplicity of a text-based interface, Mac’s built-in SSH client, Terminal, is a reliable choice. This free application allows you to access and control remote computers via SSH connections. It’s pre-installed on your Mac, making it the go-to choice for many users. With Terminal, you can quickly log into remote servers and execute commands to access files and run programs on other computers. If you have some coding background, this tool is a convenient option, and the fact that it’s already on your Mac makes it hard to beat.

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Table: Terminal – The Mac’s Built-In SSH Client
| Features | Pros | Cons |
|---|---|---|
| Built-in and free | Easy accessibility | Text-based interface |
| Command-line access | Fast and efficient | Steeper learning curve |
| Ideal for coding experts | Limited graphical interface |
2. PuTTY for Mac
A Windows Classic on Mac
PuTTY, a popular SSH client for Windows, is also available for Mac users. While Mac comes with its Terminal, PuTTY for Mac fills the void for those transitioning from Windows. It offers a graphical user interface and the ability to save login and session information, making it a practical choice for SSH connections on Mac. You can manage your SSH login information, saving time and enhancing the user experience.

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Table: PuTTY for Mac – The Windows Classic on Mac
| Features | Pros | Cons |
|---|---|---|
| Windows classic on Mac | User-friendly GUI | Redundant with Terminal |
| SSH connections with ease | Time-saving login info | Graphical interface may be preferred |
| Practical for Windows users | Similar basic functions as Terminal |
3. iTerm2
The Advanced Terminal Replacement
iTerm2 is the SSH client for Mac users who seek an advanced alternative to the native Terminal. While iTerm2 facilitates SSH connections, it goes beyond the basics with a plethora of additional features. This client supports split panes, search functionality, and easy copying and pasting. It even boasts an Instant Replay feature, enabling you to recover deleted text. For SSH enthusiasts and power users, iTerm2 offers unmatched capabilities.

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Table: iTerm2 – The Advanced Terminal Replacement
| Features | Pros | Cons |
|---|---|---|
| Advanced Terminal features | Split panes for multitasking | Learning curve for beginners |
| Search functionality | Instant Replay for text recovery | Extensive features may overwhelm |
| Efficient SSH navigation | Paste history |
4. Termius
Cross-Platform SSH Client
Termius is a versatile SSH client that extends its reach across Mac, Windows, Linux, and even mobile devices. If you need to access SSH servers on various platforms, Termius is an excellent choice. It features autocomplete functionality and the ability to save frequently used commands. Moreover, it offers a graphical user interface for Secure File Transfer Protocol (SFTP), simplifying file sharing between devices via SSH connections.

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Table: Termius – The Cross-Platform SSH Client
| Features | Pros | Cons |
|---|---|---|
| Cross-platform compatibility | Autocomplete for quick typing | Premium features come at a cost |
| SFTP GUI for file sharing | Command-saving capabilities | Free version lacks SFTP GUI |
| Versatile and user-friendly | Multi-device support |
5. ZOC Terminal
The Organizational SSH Client
ZOC Terminal stands out as an SSH client that prioritizes organization and customization. It allows users to open multiple Terminal tabs, color-coding each for easy reference. The emulator maintains an “address book” for folders and hosts, making it efficient for managing different servers. ZOC Terminal also permits extensive keyboard remapping, hotkey shortcuts, and customized button bars, catering to those who are well-versed in Terminal and command line operations.

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Table: ZOC Terminal – The Organizational SSH Client
| Features | Pros | Cons |
|---|---|---|
| Organized and customizable | Multiple tabs with color-coding | Requires advanced Terminal knowledge |
| Address book for quick access | Extensive keyboard remapping | Complex for beginners |
| Convenient for repetitive tasks | Quick access to commands |
Conclusion: Choosing the Right SSH Client for Mac
While Mac’s built-in Terminal is a reliable and free option, the other SSH clients mentioned offer enhanced features and user-friendly interfaces. The choice ultimately depends on your preferences and needs. If you’re a coding expert who values simplicity, Terminal is perfect. PuTTY for Mac caters to Windows users familiar with its interface. iTerm2 is ideal for power users who seek advanced functionality. Termius is the cross-platform solution for multi-device access, and ZOC Terminal excels in organization and customization.
Remember, your SSH client should align with your SSH usage and personal preferences. With the right choice, you can streamline your remote access and enjoy secure and efficient connections.
In the world of Mac SSH clients, there’s no shortage of options. Find the one that suits you best and make your remote computing experience more efficient and secure.
Costumer Services
SBCGlobal Email Not Receiving Emails: A Comprehensive Guide
Introduction
If you’re facing problems with SBCGlobal email not receiving emails, you’re not alone. Many users experience email delivery issues caused by server settings, outdated configurations, or account security errors. This guide will walk you through why your SBCGlobal email might not be receiving messages, how to fix it step-by-step, and when to contact professional suppor for advanced troubleshooting.
What Is SBCGlobal Email?
SBCGlobal.net is a legacy email service originally provided by Southwestern Bell Corporation, which later merged with AT&T. Even though new SBCGlobal accounts are no longer being created, millions of users still access their SBCGlobal email through AT&T’s Yahoo Mail platform.
However, because SBCGlobal operates on older infrastructure and server settings, users sometimes experience email syncing, login, or receiving issues especially when using third-party apps or outdated settings.

Common Reasons SBCGlobal Email Is Not Receiving Emails
Before you start troubleshooting, it’s important to identify what might be causing the issue. Below are the most frequent culprits behind SBCGlobal email receiving problems:
- Incorrect Email Settings: If your incoming (IMAP/POP3) or outgoing (SMTP) settings are incorrect, emails won’t load properly.
- Server Outages: Temporary outages or server maintenance by AT&T or Yahoo may interrupt incoming mail delivery.
- Storage Limit Reached: When your mailbox exceeds its storage limit, new emails are automatically rejected.
- Spam or Filter Rules: Overly strict filters or incorrect spam settings might send legitimate emails to the Junk or Trash folder.
- Browser Cache or App Glitches: Cached data and outdated email apps can disrupt syncing or message retrieval.
- Blocked Senders or Blacklisted IPs: Accidentally blocking a sender or being on a spam blacklist may prevent messages from reaching your inbox.
- Security or Account Lock Issues: Suspicious login attempts or password errors can cause temporary account restrictions.
Step-by-Step Solutions to Fix SBCGlobal Email Not Receiving Emails
Let’s go through a series of troubleshooting steps to help you restore your email flow. You can perform these solutions on both desktop and mobile platforms.
1. Check SBCGlobal Email Server Status
- Sometimes, the issue isn’t on your end.
- Go to Downdetector or AT&T’s official website to see if SBCGlobal or AT&T Mail is down.
If there’s an outage, you’ll need to wait until the service is restored.
2. Verify Your Internet Connection
Ensure your device has a stable and fast internet connection. Poor connectivity can stop your email client from syncing or fetching new messages.
3. Update Incoming and Outgoing Mail Server Settings
Outdated or incorrect settings are the most common reason SBCGlobal email stops receiving messages. Here are the correct configurations:
Common Reasons SBCGlobal Email Is Not Receiving Emails
Before you start troubleshooting, it’s important to identify what might be causing the issue. Below are the most frequent culprits behind SBCGlobal email receiving problems:
- Incorrect Email Settings: If your incoming (IMAP/POP3) or outgoing (SMTP) settings are incorrect, emails won’t load properly.
- Server Outages: Temporary outages or server maintenance by AT&T or Yahoo may interrupt incoming mail delivery.
- Storage Limit Reached: When your mailbox exceeds its storage limit, new emails are automatically rejected.
- Spam or Filter Rules: Overly strict filters or incorrect spam settings might send legitimate emails to the Junk or Trash folder.
- Browser Cache or App Glitches: Cached data and outdated email apps can disrupt syncing or message retrieval.
- Blocked Senders or Blacklisted IPs: Accidentally blocking a sender or being on a spam blacklist may prevent messages from reaching your inbox.
- Security or Account Lock Issues: Suspicious login attempts or password errors can cause temporary account restrictions.
Step-by-Step Solutions to Fix SBCGlobal Email Not Receiving Emails
Let’s go through a series of troubleshooting steps to help you restore your email flow. You can perform these solutions on both desktop and mobile platforms.
1. Check SBCGlobal Email Server Status
- Sometimes, the issue isn’t on your end.
- Go to Downdetector or AT&T’s official website to see if SBCGlobal or AT&T Mail is down.
If there’s an outage, you’ll need to wait until the service is restored.
2. Verify Your Internet Connection
Ensure your device has a stable and fast internet connection. Poor connectivity can stop your email client from syncing or fetching new messages.
3. Update Incoming and Outgoing Mail Server Settings
Outdated or incorrect settings are the most common reason SBCGlobal email stops receiving messages. Here are the correct configurations:
- Server:
imap.mail.att.net - Port: 993
- Encryption: SSL
- Username: Your full SBCGlobal email address
- Password: Your email password
Outgoing Mail (SMTP) Server:
- Server:
smtp.mail.att.net - Port: 465 or 587
- Encryption: SSL/TLS
- Requires Authentication: Yes
If you’re using POP3, use:
- Incoming server:
inbound.att.net, Port 995 (SSL required) - Outgoing server:
outbound.att.net, Port 465 (SSL required)
Double-check these settings in your email client (Outlook, Apple Mail, Thunderbird, etc.) to make sure they match.
4. Review Spam and Junk Folder
- Sometimes, legitimate emails end up in the Spam or Junk folder. Open these folders and mark any wrongly filtered emails as “Not Spam.”
- Also, check your Filters and Blocked Addresses under email settings to ensure no important addresses are being redirected or blocked.
5. Clear Browser Cache or Update Your App
If you access SBCGlobal email through a browser:
- Clear your cache, cookies, and browsing history.
- Try opening email in incognito/private mode to rule out extensions or ad blockers causing problems.
If you use the Yahoo Mail App or Outlook, ensure the app is updated to the latest version. Outdated apps may not sync with the latest server configurations.
6. Check Mailbox Storage Limit
- SBCGlobal email accounts have a maximum storage quota.
- Delete unnecessary emails from your inbox, sent, and trash folders.
- After clearing space, refresh your inbox or restart your email client — new emails should start appearing.
7. Reset or Re-Add Your SBCGlobal Account
- If none of the above methods work, try removing your SBCGlobal account from your email client and re-adding it with the correct settings.
- This refreshes the connection and often resolves syncing or server timeout issues.
8. Reset Your Password
If you suspect your account might have been compromised or temporarily locked, resetting your password is a smart step.
- Visit the AT&T Password Reset page.
- Follow the on-screen steps to verify your identity.
- Set a strong, unique password and re-login to your email account.
9. Disable Security Software Temporarily
- Firewall or antivirus software can sometimes block email servers.
- Temporarily disable them (only if you’re confident about your network security) and check if you start receiving emails again.
10. Contact SBCGlobal Email Support
- If you’ve followed all the steps and your SBCGlobal email is still not receiving messages, the issue might be server-side or linked to account configuration.
- In that case, it’s best to contact SBCGlobal email support for expert help.
You can reach certified technicians.
They can assist with:
- Account recovery and login errors
- Server synchronization issues
- Email migration or backup
- Advanced spam and security settings
Having professional help ensures your account is restored quickly without losing any important messages or data.
Tips to Prevent Future SBCGlobal Email Problems
- Update Passwords Regularly: Keep your email account secure and avoid login lockouts.
- Use a Reliable Email App: Apps like Outlook or Apple Mail handle IMAP connections more efficiently.
- Backup Emails Periodically: Regular backups protect your messages from unexpected sync failures.
- Keep Storage Under Control: Delete old attachments and large files frequently.
- Monitor Account Activity: Check for unusual login attempts from unknown locations.
Final Thoughts
Facing issues like SBCGlobal email not receiving emails can be frustrating, especially when you rely on your email for important communications. However, most problems can be resolved by verifying server settings, clearing browser cache, managing storage, or resetting passwords.
If you continue to face challenges, don’t hesitate to reach out to expert SBCGlobal email support for personalized assistance. A few minutes of professional troubleshooting can save hours of frustration and get your SBCGlobalemail running smoothly again.
Development
Enhancing Mapping Accuracy with LiDAR Ground Control Targets
How Do LiDAR Ground Control Targets Work?
LiDAR technology uses laser pulses to scan the ground and capture a wide range of data, including elevation, shape, and distance. However, the data collected by LiDAR sensors needs to be aligned with real-world coordinates to ensure its accuracy. This is where LiDAR ground control targets come in.
Georeferencing LiDAR Data
When LiDAR sensors capture data, they record it as a point cloud, an array of data points representing the Earth’s surface. To make sense of these data points, surveyors need to assign them precise coordinates. Ground control targets provide reference points, allowing surveyors to georeference point cloud data and ensure that LiDAR data aligns with existing maps and models.
By placing LiDAR ground control targets at specific locations on the survey site, surveyors can perform adjustments to correct discrepancies in the data caused by factors such as sensor calibration, flight altitude, or atmospheric conditions.
Why Are LiDAR Ground Control Targets Essential for Accurate Mapping?
LiDAR technology is incredibly powerful, but the accuracy of the data depends largely on the quality of the ground control points used. Here are the key reasons why LiDAR ground control targets are essential for obtaining precise mapping results:
1. Improved Geospatial Accuracy
Without ground control targets, LiDAR data is essentially “floating” in space, meaning its position isn’t aligned with real-world coordinates. This can lead to errors and inaccuracies in the final map or model. By placing LiDAR ground control targets at known geographic coordinates, surveyors can calibrate the LiDAR data and improve its geospatial accuracy.
For large projects or those involving multiple data sources, ensuring that LiDAR data is properly georeferenced is critical. Ground control targets help ensure the survey data integrates seamlessly with other geographic information systems (GIS) or mapping platforms.
2. Reduction of Measurement Errors
LiDAR ground control targets help mitigate errors caused by various factors, such as:
- Sensor misalignment: Minor inaccuracies in the LiDAR sensor’s position or angle can cause discrepancies in the data.
- Aircraft or drone movement can slightly distort the sensor’s collected data.
- Environmental conditions: Weather, temperature, and atmospheric pressure can all affect the LiDAR signal.
By using ground control targets, surveyors can compensate for these errors, leading to more precise and reliable data.
3. Support for Large-Scale Projects
For larger mapping projects, multiple LiDAR scans might be conducted from different flight paths or at different times. Ground control targets serve as common reference points, ensuring that all collected data can be merged into a single coherent model. This is particularly useful for projects involving vast areas like forests, mountain ranges, or large urban developments.
How to Choose the Right LiDAR Ground Control Targets
Choosing the right LiDAR ground control targets depends on several factors, including the project’s size, the terrain, and the required accuracy. Here are some things to consider:
Size and Visibility
The size of the target should be large enough to be easily detectable by the LiDAR sensor from the air. Targets that are too small or poorly placed can lead to inaccurate data or missed targets.
Material and Durability
Ground control targets must have enough durability to withstand weather conditions and remain stable throughout the surveying process. Surveyors often use reflective materials to ensure that the LiDAR sensor can clearly detect the target, even from a distance.
Geospatial Accuracy
For high-accuracy projects, surveyors must place ground control targets at precise, known locations with accurate geospatial coordinates. They should use a GPS or GNSS system to measure and mark the exact position of the targets.
Conclusion
LiDAR ground control targets play a pivotal role in ensuring the accuracy of aerial surveys and LiDAR mapping projects. By providing precise reference points for geo referencing and adjusting LiDAR data, these targets reduce errors and improve the overall quality of the final model. Whether you’re working on a small-scale project or a large-scale survey, integrating ground control targets into your LiDAR workflow is essential for achieving high-precision results.
The right ground control targets, when placed correctly and properly measured, can make the difference between reliable, actionable data and inaccurate measurements that undermine the entire survey.
By understanding the importance of these targets and how they function in the context of LiDAR surveys, you’ll be better prepared to tackle projects that demand accuracy and precision.
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