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That Brazilian Guy
  • Member for 9 years, 7 months
  • Last seen more than a month ago
  • Brazil
2444 votes
31 answers
516k views

Our security auditor is an idiot. How do I give him the information he wants?

  • 24k
657 votes
10 answers
1.9m views

How to automate SSH login with password?

  • 9,489
623 votes
13 answers
156k views

How do I deal with a compromised server?

  • 6,330
469 votes
8 answers
177k views

How does IPv4 Subnetting Work?

  • 81.6k
466 votes
7 answers
76k views

Something is burning in the server room; how can I quickly identify what it is?

356 votes
6 answers
525k views

What permissions should my website files/folders have on a Linux webserver?

  • 13k
278 votes
45 answers
68k views

What are the obstacles to providing reliable Internet access and Wi-Fi at large tech conferences? [closed]

  • 3,686
276 votes
5 answers
575k views

Nginx reverse proxy + URL rewrite

  • 2,925
275 votes
15 answers
619k views

How to Unban an IP properly with Fail2Ban

  • 3,013
268 votes
15 answers
27k views

I've inherited a rat's nest of cabling. What now?

268 votes
2 answers
81k views

Why is "chmod -R 777 /" destructive?

  • 2,383
256 votes
7 answers
59k views

What’s the point in having “www” in a URL?

  • 4,273
242 votes
11 answers
490k views

Docker Container time & timezone (will not reflect changes)

  • 2,563
214 votes
15 answers
248k views

In my /etc/hosts/ file on Linux/OSX, how do I do a wildcard subdomain?

  • 8,222
196 votes
22 answers
107k views

Is it normal to get hundreds of break-in attempts per day?

  • 1,537
192 votes
6 answers
56k views

How to cd into a directory with this name "-2" (starting with the hyphen)?

  • 1,823
188 votes
2 answers
45k views

What are the different widely used RAID levels and when should I consider them?

  • 100k
186 votes
6 answers
343k views

Nginx config reload without downtime

  • 1,975
186 votes
4 answers
78k views

Should I quit using Ifconfig?

  • 2,099
185 votes
5 answers
24k views

I am under DDoS. What can I do?

  • 24.9k
184 votes
61 answers
14k views

Good tools that fit on a thumb drive [closed]

  • 1,432
168 votes
10 answers
33k views

How bad is IPv4 address exhaustion really?

  • 1,545
152 votes
2 answers
170k views

tar - Remove leading directory components on extraction

  • 1,865
139 votes
5 answers
214k views

How to output variable in nginx log for debugging

  • 1,517
137 votes
10 answers
404k views

best way to clear all iptables rules

  • 1,901
133 votes
8 answers
508k views

How can I port forward with iptables?

  • 2,068
130 votes
7 answers
229k views

How to list Apache enabled modules?

  • 1,455
127 votes
14 answers
61k views

Why is RAID not a backup?

  • 14.1k
124 votes
5 answers
269k views

How to check if an RSA public / private key pair match

  • 5,341
118 votes
14 answers
273k views

How do you increase a KVM guest's disk space?

  • 7,275
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