Search found 20 matches

by saeed
2014/11/03 10:31:40
Forum: CentOS 6 - General Support
Topic: How to get the IO history?
Replies: 1
Views: 546

How to get the IO history?

Hello I know that I can use iotop command to get the list of the current active processes and their I/O. But I would like to know if I can get the past processes, say within the previous day, and their IO. This can help me see what processes have been consuming server memory in a certain point if ti...
by saeed
2014/10/23 14:35:37
Forum: CentOS 6 - Security Support
Topic: Network Unreachable Error
Replies: 4
Views: 23500

Re: Network Unreachable Error

Looks to me like you have 2 separate issues: first your server is complaining a lot about being unable to contact things over ipv6 so do you have ipv6 enabled and do you have a valid ipv6 address on an interface that can reach those addresses? The second and slightly more worrying issue is: is 93.1...
by saeed
2014/10/23 12:21:22
Forum: CentOS 6 - Security Support
Topic: Network Unreachable Error
Replies: 4
Views: 23500

Network Unreachable Error

Hi Today I noticed that I have some lines in my log files in /var/log/messages as follows: Oct 23 11:39:03 server named[1585]: error (network unreachable) resolving './DNSKEY/IN': 2001:503:ba3e::2:30#53 Oct 23 11:39:03 server named[1585]: error (network unreachable) resolving './NS/IN': 2001:503:ba3...
by saeed
2014/08/05 11:11:00
Forum: CentOS 6 - General Support
Topic: How to generate server.ca file
Replies: 3
Views: 1351

Re: How to generate server.ca file

Hi

Navigating to

Code: Select all

/etc/pki/tls/certs/
I have

Code: Select all

ca-bundle.crt  ca-bundle.trust.crt  make-dummy-cert  Makefile  renew-dummy-cert
can "ca-bundle.crt" be responsible for the mentioned file?

By the way, can you explain the function of "renew-dummy-cert" file here?

Thanks alot
by saeed
2014/08/05 10:03:07
Forum: CentOS 6 - General Support
Topic: How to generate server.ca file
Replies: 3
Views: 1351

How to generate server.ca file

Hi This might be a simple stupid question. BUT I have not found the answer to it anywhere. So please be patient and kind enough to answer it if you can. I had two files in my ssl.crt in the path /etc/httpd/conf/ of my Centos 6.5 sever. They included server.ca and server.crt. My question is how I can...
by saeed
2014/08/05 09:54:46
Forum: CentOS 6 - Security Support
Topic: No package mod_ssl available
Replies: 2
Views: 4591

Re: No package mod_ssl available

Hi TrevorH

thanks for replying. Yes, it is DirectAdmin. I will ask them the same question.
by saeed
2014/08/05 06:47:06
Forum: CentOS 6 - Security Support
Topic: No package mod_ssl available
Replies: 2
Views: 4591

No package mod_ssl available

Hi Excuse me if I am posting this in the wrong forum. I am trying to create an SSL certificate for my server which has Centos 6.5 as its OS. For generating a key I need to use genkey command for which I had to install crypto-utils. Still I need to install mod_ssl for Apache. However, when I issue yu...
by saeed
2014/07/25 18:09:25
Forum: CentOS 6 - Security Support
Topic: DDOS Attack
Replies: 9
Views: 5403

Re: DDOS Attack

@whoever Thanks for replying. I have configured named.conf as follows options { //listen-on port 53 { 127.0.0.1; }; listen-on-v6 port 53 { ::1; }; directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; memstatistics-file "/var/named/data...
by saeed
2014/07/25 10:10:06
Forum: CentOS 6 - Security Support
Topic: DDOS Attack
Replies: 9
Views: 5403

Re: DDOS Attack

Hi Words of wisdom!! Yes, I admit you're right. But when one does not have the sufficient knowledge about a field, then he might know that " A little knowledge is a dangerous thing". So "masking" is often the only strategy left. Here is another sample of the potential error/attack logs. Please note ...
by saeed
2014/07/24 20:03:11
Forum: CentOS 6 - Security Support
Topic: DDOS Attack
Replies: 9
Views: 5403

Re: DDOS Attack

Any ideas would be highly appreciated. Here's an idea - if you expect people to help YOU, don't obfuscate the logs into random garbage. Hi vonskippy Thanks for the tip. I really did not tend to obfuscate anything. The problem is, due to the nature of the forums being public, I sometimes do not know...

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