Jeff Ferland's user avatar
Jeff Ferland's user avatar
Jeff Ferland's user avatar
Jeff Ferland
  • Member for 14 years, 10 months
  • Last seen more than a month ago
144 votes

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

90 votes
Accepted

Mysterious visitor to hidden PHP page

80 votes
Accepted

How can I see the contents of the mail whose ID I get from mailq command?

76 votes
Accepted

Can you have more than one ~/.ssh/config file?

53 votes

Delete a iptables chain with its all rules

50 votes
Accepted

Technologies that allow YouTube scale distribution?

36 votes
Accepted

Why does Amazon release private keys instead of public keys?

35 votes

Is there a way to avoid SSH typing delay?

33 votes
Accepted

Why bracket a single letter in a grep regex?

31 votes

How can I list my open ports on Debian?

30 votes

Differences between bridged and NAT networking

27 votes
Accepted

Why is Linux reporting "free" memory strangely?

26 votes

Cutting an UTP cable while it's plugged in

25 votes

Linux CPU usage and Process Execution History

24 votes
Accepted

Prevent SSH from advertising its version number

19 votes
Accepted

Getting login year data with the 'last' command on linux

18 votes
Accepted

Debian/Ubuntu is it possible to reinitialize /var/lib/apt/lists and /var/apt/cache after deleting them?

18 votes

Apache: Scammers point dozens of domain names at my dedicated IP. How to prevent this?

16 votes

Is there a difference between how two ampersands and a semi-colon operate in bash?

15 votes
Accepted

What is the gain by using Puppet instead of Augeas itself?

15 votes
Accepted

Bash script not working with `sh`

15 votes
Accepted

Why is "AcceptEnv *" considered insecure?

14 votes
Accepted

Can Linux file permissions be fooled?

14 votes
Accepted

Set sysctl.conf parameters with Puppet

13 votes
Accepted

How big is too big for ibdata file?

12 votes
Accepted

Is it possible to find the actual source IP of a packet with a spoofed IP header?

12 votes
Accepted

Receive emails on Amazon EC2 Server

10 votes

KVM: Which CPU features make VMs run better?

10 votes
Accepted

Linux cached memory: Over 85% of cached memory and using swap

10 votes

Email notification about each SSH connection to Linux server

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