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Search: Posts Made By: postcd
4,874
Posted By postcd
i dont understand perl and LWP, but this is what...
i dont understand perl and LWP, but this is what is basically in the script:
my $primarypl =
"$method /$num HTTP/1.1\r\n"
. "Host: $host\r\n"
...
Forum: Cybersecurity 04-07-2014
5,750
Posted By postcd
When i start CSF i cant connect VPS or download any data into it It appears i cant connect Linux VP?
It appears i cant connect linux VPS server via SSH or i cant SCP any file to it and i cant wget any file TO it (from inside it) while CSF (Config Server Firewall, LFD is running. Just after isntall...
4,874
Posted By postcd
Perl: How to run an POST/GET command via proxy?
Please what is the most simple way to run some perl command via proxy?

i have perl script an in it:

POST **something**
GET **something**

what should i do before it so its proxified via...
Forum: IP Networking 04-06-2014
10,297
Posted By postcd
Im sorry, im not a perl programmer so i actually...
Im sorry, im not a perl programmer so i actually dont understand functions of the perl script. I just ask how to run whole perl script thru proxy in linux, or if you find any function in that perl...
3,312
Posted By postcd
thx, I dont know why, but when i remove pkill...
thx, I dont know why, but when i remove pkill command from cronjob line, script is executed and works..

Dont works:
* * * * * pkill -f domexpcheck;sh /root/dom/domexpcheck.sh

* * * * * pkill...
3,312
Posted By postcd
thx, i have variables like: cd /root/folder ...
thx, i have variables like:

cd /root/folder
variablename=filename

(so without /full/path/filename) can this be the cause of cron failure?
Forum: IP Networking 04-04-2014
2,506
Posted By postcd
Reverse proxy tutorials for webserver?
Hi, one member of WJ forum adviced that i setup an reverse proxy for my webserver. So im curious if anyone know about good, easy noob tutorial on hwo to achieve this, please link to this tutorial how...
4,776
Posted By postcd
Im not sure how i can do it? Im n Windows OS, and...
Im not sure how i can do it? Im n Windows OS, and Chrome browser. What i did is changed Internet Explorer proxy settings, so most of connections goes thru my socks proxy.

But as i said at least 2...
Forum: Cybersecurity 04-01-2014
3,292
Posted By postcd
thx, question remains: "i want to ask how to...
thx, question remains: "i want to ask how to debug what this IP does?"
1,662
Posted By postcd
Log files @ high load
Hi,

my VPS was overloaded and inaccessible for some time and i want to ask for help in which log files i need to look, or which tools to setup to monitor and find the cause of repeated hig load?
...
Forum: IP Networking 04-01-2014
10,297
Posted By postcd
that perl script is too complicated and big
that perl script is too complicated and big
Forum: IP Networking 03-31-2014
10,297
Posted By postcd
How to run an script and its commands via proxy?
Hi,

i used this tutorial (http://www.shellhacks.com/en/HowTo-Use-a-Proxy-on-the-Linux-Command-Line) which tells me to use following example command to proxify traffic from my linux

export...
Forum: Cybersecurity 03-31-2014
2,863
Posted By postcd
Any Denial of Service test site with advice?
Hi,

please do you know any free or very cheap service which generates short time attacks on a remote webserver to test its security and ability to minigate various kind of DoS?
Then some report...
1,251
Posted By postcd
How to keep server out of logs?
Hi,

there you may read some anonymous services like VPN service dont keep logs of their members activity.

So i want to ask how i can make my personal linux servers be without any logs of...
Forum: Cybersecurity 03-29-2014
12,569
Posted By postcd
Fail2ban ERROR Unable to contact server. Is it running?
Hello, my fail2ban service is running (ps aux)

When i do:
fail2ban-client status
it returns:
ERROR Unable to contact server. Is it running?

same message on fail2ban restart.

In...
Forum: Cybersecurity 03-29-2014
3,516
Posted By postcd
3 steps to protect Webserver against DoS?
Hi, there are 3 steps on how to protect against Denial of Service attack on a webserver:

- limiting the number of requests that a server will accept from a single IP address in a fixed time frame...
2,858
Posted By postcd
When downloading a webpage by curl, what happen?
Hello,

when im downloading an webpage from command line (CLI) by curl or wget the target website is loaded like i load it from browser? meaning target server connect to database and render data...
3,701
Posted By postcd
thx, im using just simple wget command with two...
thx, im using just simple wget command with two its parameters..

it works, but after some time it feels like it fills the memory and fails with mentioned error...
7,889
Posted By postcd
thx, in my case i had an exotic port set in ssh...
thx, in my case i had an exotic port set in ssh config file.. (/etc/ssh/sshd_config) so i just changed it and service ssh(d?) restart :b:

so its solved
Forum: Cybersecurity 03-28-2014
3,292
Posted By postcd
1780 connections from one IP
Hello, one US IP having 1700+ connections when doing:

netstat -tn 2>/dev/null | grep :80 | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -nr | head

1780 *
... *
... *

i want to...
3,701
Posted By postcd
How to clean memory after command run?
Hello, i have an loop (while) in bash and i seen after a while sctipt returned like:

wget: error while loading shared libraries: libselinux.so.1: failed to map segment from shared object: Cannot...
7,225
Posted By postcd
Bash script parallel tasks and command to wait untill complete?
Hello,

im having bash script with

while ***
command1 &&
command2 &&
command3 &&
done

i want to ask how i can prevent overloading server, by waiting untill all commands complete? any low...
7,889
Posted By postcd
[solved] SSHd is running, but cant connect "Network error: Connection refused"
Hi, i checked on rhel VPS is running sshd
(service ssh status)

But i cant connect via putty: "Network error: Connection refused"

Please which log file in my centos rhel linux i need to watch...
Forum: IP Networking 03-27-2014
3,278
Posted By postcd
Stuck at "bringing up interface eth0:"
Server is stuck at "Stuck at "bringing up interface eth0:""

after i hard reset the server

I have IPMI access, please help me diagnose the cause if you can :(
1,318
Posted By postcd
Server is accessible only via IPMI, help
Server is accessible only via IPMI. SSH and web control panel is timeout. Takes several hours. Server dont have high load or suspicious processes.
I checked /etc/hosts.deny and restarted ssh, but...
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