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Jun
21
revised IS there any way to send mail without relay server
Add SPF anyways.
Jun
20
revised IS there any way to send mail without relay server
Complete response
Jun
20
answered IS there any way to send mail without relay server
Jun
17
answered How can I get dovecot to retrieve my email?
Jun
11
answered Is there a way to have logcheck send a daily digest as well as the hourly mails?
Jun
10
awarded  Enlightened
Jun
10
awarded  Nice Answer
Jun
4
comment What is stopping our UDP packets (how does it know the route is down)?
@JohnU If you are accepting and dropping the packets, then I would be concerned you get the same behavior when you aren't dropping packets. Depending on your filter Wireshark may not be catching the ICMP packets.
Jun
3
answered What is stopping our UDP packets (how does it know the route is down)?
Jun
1
comment Why and how is swap improving performance, and can I disable it?
@prakharsingh95 Things paged out to disk tend not to be frequently accessed. If they are using memory that would otherwise be used for frequently accessed, they may increase the I/O load (use of disk). This is trading off space used for swap for performance resulting from fewer waits for disk I/O.
May
31
revised Why and how is swap improving performance, and can I disable it?
added 325 characters in body
May
31
answered Why and how is swap improving performance, and can I disable it?
May
23
revised How can I change the default gateway?
Clarify and generalize.
May
19
answered Prevent a lot of brute force attacks on Exim2
May
10
comment How many inodes do I need to access to read a file?
@graphtheory92 The root directory is just another inode. However it is a very important inode. When you mount a disk partition, its root partions inode is referenced in place of the inode of the mount point on the disk you are mounting to.
May
10
answered How many inodes do I need to access to read a file?
May
7
answered package from IP arrives at certain port => open portrange to IP for x seconds
May
7
comment Is a directory removed when its number of hard links becomes 0?
If the directory is a sub-directory. the entry .. will point to the parent. As a special case the root directory link points to itself. This allows cd ..\.. and similar commands to work as expected no matter where you are. You can test with the stat command.
May
5
comment ext4 - An entire directory disappeared?
If the file got renamed to have a period as the first character it won't show up in an normal ls command. Try ls -a. Using du on the containing directory may show your file as well.
Apr
26
answered Can I restrict the root to a single browser?