How Can CRM Features Boost Your Team's Productivity?
Exploring how CRM features can significantly enhance your team's productivity by optimizing workflows and improving customer interactions.
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2026-09-01
Solution example Security
A server nobody looked after: locked down and watched around the clock
SSH keys instead of passwords, firewall, automatic updates, off-server backups and alerts in Telegram before customers notice a problem.
- Client
- Typical client: SaaS or store on its own VPS
- Timeline
- 2–3 days
- Year
- 2026
audit vps-01
- $ audit vps-01
- root login ✗ password → ✓ keys only
- brute force ✗ 4 812/day → ✓ fail2ban
- open ports ✗ 14 → ✓ 3
- backups ✗ none → ✓ daily, offsite
- alerts ✓ Telegram
0
password logins allowed
1×
daily off-server backup
1 min
uptime check interval
This is a solution example: it shows how we would build it for a typical client. The figures are targets we agree on before the work starts, not results of a specific client.
Before and after
BeforeAfter
LoginBefore Root with a passwordAfter SSH keys only
BackupsBefore Only on the same serverAfter Daily, elsewhere, tested
OutagesBefore Reported by customersAfter Alert in Telegram in a minute
The problem
The VPS was set up by a freelancer years ago: root login with a password, thousands of brute-force attempts a day, no backups outside the server.
How we solve it
- 01SSH keys only, root login off, fail2ban against brute force
- 02Firewall: only the ports the service needs
- 03Automatic security updates and a monthly maintenance window
- 04Daily encrypted backup to another location, tested restore
- 05Monitoring of disk, CPU, SSL and uptime with Telegram alerts
How it works
In
VPSService logsHardening and monitoring
Keys, firewall, updates
Result
Off-site backupsTelegram alertsHow the work goes
- 1half a day
Audit
What runs, what is open, where the data lives.
- 21 day
Hardening
Keys, firewall, updates — in a window agreed with you.
- 31 day
Backups and alerts
Off-site copy with a restore test, monitoring into Telegram.
What the client gets
- Brute-force attempts no longer reach the login
- A full restore is possible from yesterday's copy
- Problems are seen in Telegram before customers call
Technologies
- Ubuntu / Debian
- SSH keys
- fail2ban
- nftables
- restic
- Uptime Kuma
Related services
What we need from you
Everything else is on us. You see progress after each stage and pay after accepting it.
- Current root or sudo access
- A list of people who need server access
- A quiet hour for the reboot after updates
Want the same for your business?
Describe the task in your own words. We'll reply with questions or a plan and name the price and deadline before we start.
More cases
All cases →mail-check tansecure.com
- SPF ✓ pass
- DKIM ✗ missing → ✓ signed (s=mail)
- PTR ✗ mismatch → ✓ matches HELO
- Relay ✗ open for gmail.com → ✓ closed
- DMARC ✓ p=quarantine
- mail-tester: 9/10 → 10/10
Our project Security
Replies stopped landing in spam: mail-tester 9/10 → 10/10
Gmail put our replies to clients into spam. We found three causes in the mail chain and fixed them in a day.
10/10mail-tester score
Read the casescan shop.example.com
- wp-content/uploads/x.php ✗ backdoor
- users: admin2 (fake) ✗ removed
- redirect → casino.* ✗ removed
- plugins outdated: 7 ✓ updated
- firewall + 2FA ✓ on
- Google warning: review requested
Solution example Security
Hacked store: cleaned, closed and back in Google within days
Redirects to spam sites, a red warning in Chrome and lost orders. We remove the malicious code, close the hole and ask Google to lift the warning.
same daywe start the cleanup
Read the case1 284
spam blocked this week
37
phishing attempts stopped
Solution example Security
A spam filter in front of the company mail: 30–80 mailboxes protected
Proxmox Mail Gateway stops spam, phishing and infected attachments before they reach the mail server; staff release false positives themselves.
30–80mailboxes behind one filter
Read the case
