1,304 reputation
610
bio website
location
age
visits member for 5 years, 2 months
seen 15 hours ago

Apr
1
comment Is open relay to local users the right way to work on port 25?
Well, you could not accept mail (firewall port 25), which is sensible if your users aren't humans reading mail on the machine with 'mutt' or similar UNIX clients and you aren't running imapd etc. What are you trying to achieve with this postfix server?
Mar
3
comment Are DNS records private information?
Note that there are plenty of bad guys scanning the entire IP space for computers they can SSH into. If it's reachable from the public internet, you're going to get people banging on the SSH port.
Feb
6
comment Specialized access control for directories in RedHat 6?
Note that if you have 'modify' permission, you can truncate the file to zero bytes. What about rename operations?
May
10
comment Masking the URL in a mod_rewrite
You can serve the page example.com/bacon in various ways, such as proxying it, but there's a bunch of other issues: which domain gets to get cookies? What is the base URL considered to be for image and CSS requests?
Apr
22
comment /usr/bin/ld: cannot find -lecm
Is there a libecm.a file in ../ecm-6.4.4? You might need to give an absolute path to that directory.
Apr
16
comment Apache Disk space full
It's probably the log files like 'access.log' and 'error.log'.
Apr
11
comment How to investigate Linux scheduler issues?
Is this a hyperthreading issue? Are you using CPU affinity? How many cores/threads are there?
Mar
20
comment Why can't I connect to Active Directory Users and Computers from Windows 7, but can from XP?
Are the windows 7 machines actually on the domain, with the right product of windows?
Jul
18
comment Keep a fifo open by shell-script
I don't follow what you're saying; run expect at the top level and have it send data to the process, it handles all the pipe machinery for you. What, ultimately, are you trying to do?
Jun
28
comment Email “relay forwarding” through Google
Relaying must still go through the google server, although it need not be stored there.
Jun
19
comment Apache with a self signed certificate displays wrong certificate
How did you generate the certificate?
May
18
comment Is there a way to automatically restart MySQL, if it takes up too much processing power?
Is this really a good idea? Doesn't it run the risk of leaving your DB in an inconsistent state?
May
15
comment Linux, adding sub-interfaces
"some code I am working will have more sockets to locally bind to" - note that there is an OS-imposed limit of sockets per process, which you may be able to increase, but adding more interfaces won't help unless you really need more than 60,000 sockets...
May
8
comment Clarification about Linux TCP window size and delays
He has said "A proper batching is done if several messages are available at the time the first message in the batch is to be sent". Not knowing anything about the origin of the data, we can't say whether new data may need to be sent immediately after you've just sent a packet.
May
8
comment Clarification about Linux TCP window size and delays
How exactly do you know that packet 9 should have been sent immediately after 6/7? I notice it doesn't have the PUSH flag set.
May
8
comment Clarification about Linux TCP window size and delays
I disagree: there's nothing wrong with small writes if you want it to be sent immediately. He's trying to design a very low latency system.
May
4
comment Regarding routing packets via one computer to another
Change Z to 192.168.1.7. Make sure that Y's interface has two addresses, 192.168.0.3 and 192.168.1.3. Tell X (or the dlink) that to route packets to the network 192.168.1.0/24, use gateway 192.168.0.3. Then traffic from X to Z will go via Y.
May
4
comment Regarding routing packets via one computer to another
Yes, but the important thing is that you cannot prevent X talking directly to Z instead of through Y unless you change one of "same IP network" or "same ethernet segment".
May
4
comment Regarding routing packets via one computer to another
If system X is not under your control, do you actually have permission to hijack its IP traffic?
May
3
comment Frequent Rejection of Emails: 554 - MTA's Poor Reputation
That does look like a blacklist of some sort..