Two servers, with almost exactly same setup.
I can run perl cgi at one, but the other one just displays the perl code of the same script.
I know this must be an easy one, but I have absolutely no knowledge about perl,
I have a cPanel/Linux server, runing apache as a webserver.
i want to know how can i prevent perl/cgi files from working on all virtual hosts on both apache2/apache1.3!
I have a domain with a few forwarding email accounts that forward to mac.com email accounts... for some reason every once in a while these accounts stop working...
This is the error I get when I email to that account:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed: ...
When i was running top -cd2 command following scripts are taking high cup uses on server. But when we are go home directory we didn't find any thing.
24489 "User Name" 20 0 6732 5084 1164 S 8.0 0.2 11:00.69 /usr/bin/perl -w hnc.cgi
26456 "User Name" 20 0 6876 5080 1164 S 8.0 0.2 7:23.47 /usr/bin/perl -w hnc.cgi
32569 "User Name" 20 0 6748 5056 1164 S 7.5 0.2 8:57.30 /usr/bin/perl -w hnc.cgi
update us why this script are running under some particular users and what the application of this script.
I have a website is written by Perl language. I donnt know how to run it.
I installed Activeperl 5.0 and IIS is running. I have heared someone who told me that need to install a software as Emperl/ html-emperl, is it right?
How do you install perl on a centos 5?
View 3 Replies View Relatedi have big problem all Forums in my server hacked by perl symlink see all config.php by shell perl in .txt by include
i solve it by make perl permission 000 but all thing in cpanel stop cause cpanel by perl
A client's server's password was guessed, and the hacker conveniently uninstalled perl. I can't seem to get perl reinstalled. Any ideas on how this would be done? RPM, TAR's and YUM don't work, as they require perl!
Is this going to be a reinstall job?
all we know that perl language its using in alot of scripts and alot of system admins stop it why this why u dont try stopp the problems from it and make ur client have perl to used it in scripts lets try this if some one need to see passwd he will do cat /etc/passwd what about make this chmod 700 /bin/cat and he will used wget to get files what about this chmod 700 /usr/bin/wget and lynx what about chmod 700 /usr/bin/lynx in this case we make root only can using this commands any system admin sure know now the idea and he can use it as he want ,, this secured method not only in perl its in another programing language put i give this as a clear exampel.
View 5 Replies View RelatedI have a Centos VPS with Cpanel. I have begun receiving some email notifications, apparantly from my cpanel... The latest one says that the version of perl I am running is too old.
Subj: [checkperlmodules] perl version too old (v5.8.8 required, v5.8.7 is installed.)
Are there any problems or dire consequences from upgrading or side effects? What version should I upgrade to?
I've been trying to figure this out for about the past week and haven't had any success.
Can't locate funcs.pl in @INC (@INC contains: lib/perl . /usr/lib/perl5/5.8.8/i686-linux /usr/lib/perl5/5.8.8 /usr/lib/perl5/site_perl/5.8.8/i686-linux /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl/5.8.4 /usr/lib/perl5/site_perl/5.8.3 /usr/lib/perl5/site_perl/5.8.2 /usr/lib/perl5/site_perl/5.8.1 /usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl) at ./terr.pl line 28.
I'm trying to run perl magick.
ive been trying to install it for about 3 hours and ive finally got it working. now, how do i configure it to be nice and secure?
first thing is that i want to restrict which paths people can use in scripts. my site needs to access any paths but site users can only access their own directories. i want the exact same thing as in this thread but with perl instead of php
how do i block certain functions and which ones do i block? i heard perl and php are very similar so im guessing i want to block similar functions to the ones listed here
Tasks: 150 total, 7 running, 143 sleeping, 0 stopped, 0 zombie
Cpu(s): 76.9% us, 23.1% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 1026224k total, 604068k used, 422156k free, 61396k buffers
Swap: 1052248k total, 140736k used, 911512k free, 233200k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12825 apache 25 0 6752 2040 936 R 33 0.2 1556:57 perl
15338 apache 25 0 7592 4068 1324 R 33 0.4 545:03.58 perl
5817 apache 25 0 6996 4052 1240 R 33 0.4 520:37.18 perl
27139 apache 25 0 6404 4068 1248 R 33 0.4 197:40.96 perl
29176 apache 25 0 7964 4092 1272 R 33 0.4 523:40.92 perl
14785 apache 25 0 7392 4088 1272 R 31 0.4 1158:41 perl
27420 root 16 0 3248 1000 760 R 1 0.1 0:00.04 top
27441 qmaild 16 0 4736 752 604 S 0 0.1 0:00.01 qmail-smtpd
1 root 16 0 1956 96 64 S 0 0.0 0:06.83 init
2 root RT 0 0 0 0 S 0 0.0 0:04.04 migration/0
3 root 34 19 0 0 0 S 0 0.0 0:00.56 ksoftirqd/0
4 root RT 0 0 0 0 S 0 0.0 0:02.36 migration/1
5 root 34 19 0 0 0 S 0 0.0 0:00.47 ksoftirqd/1
6 root 5 -10 0 0 0 S 0 0.0 0:00.12 events/0
7 root 5 -10 0 0 0 S 0 0.0 0:00.05 events/1
8 root 9 -10 0 0 0 S 0 0.0 0:00.00 khelper
9 root 15 -10 0 0 0 S 0 0.0 0:00.00 kacpid
24 root 5 -10 0 0 0 S 0 0.0 0:00.00 kblockd/0
25 root 5 -10 0 0 0 S 0 0.0 0:00.00 kblockd/1
44 root 15 0 0 0 0 S 0 0.0 0:24.16 pdflush
26 root 15 0 0 0 0 S 0 0.0 0:00.00 khubd
46 root 13 -10 0 0 0 S 0 0.0 0:00.00 aio/0
47 root 13 -10 0 0 0 S 0 0.0 0:00.00 aio/1
45 root 15 0 0 0 0 S 0 0.0 2:45.50 kswapd0
193 root 25 0 0 0 0 S 0 0.0 0:00.00 kseriod
308 root 15 0 0 0 0 S 0 0.0 4:29.19 kjournald
1393 root 6 -10 1968 4 0 S 0 0.0 0:00.02 udevd
1912 root 6 -10 0 0 0 S 0 0.0 0:00.00 kauditd
1976 root 7 -10 0 0 0 S 0 0.0 0:00.00 kmirrord
1995 root 22 0 0 0 0 S 0 0.0 0:00.00 kjournald
1996 root 15 0 0 0 0 S 0 0.0 0:01.55 kjournald
1997 root 20 0 0 0 0 S 0 0.0 0:00.00 kjournald
2769 root 15 0 2908 244 176 S 0 0.0 2:48.00 syslogd
2773 root 16 0 3348 196 140 S 0 0.0 0:00.00 klogd
2783 root 16 0 3092 272 208 S 0 0.0 0:08.25 irqbalance
2798 named 16 0 50760 4492 1408 S 0 0.4 2:59.58 named
2852 root 15 0 2664 260 104 S 0 0.0 0:00.13 smartd
2861 root 16 0 5220 380 264 S 0 0.0 0:15.04 sshd
[root@cl-t058-280cl tmp]#
I am suffering with perl scripts attack. Please help me to resolve this issue.
How do I trace what user this is?
Code:
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND 9488 nobody 25 0 1612 1280 1108 S 21.1 0.2 619:37 1 perl bodyb3 200.101.193.42 0 5000
I also ran netstat -n and found this:
Code:
udp 15184 0 server.host.com:55936 ns1.datacenter.net:domain ESTABLISHED
How can change perl 5.8.8 to 5.8.7
Now I cant Install any Perl Module use CP.
all show me this :
Testing connection speed...(this could take a while)...Done
Ping:2.016 Testing connection speed to cpan.erlbaum.net using pureperl...(157450.00 bytes/s)...Done
Ping:2.316 Testing connection speed to cpan.belfry.net using pureperl...(157450.00 bytes/s)...Done
Ping:1.911 Testing connection speed to cpan.glines.org using pureperl...(104300.00 bytes/s)...Done
Three usable mirrors located
Mirror Check passed for cpan.erlbaum.net (/index.html)
Unknown config variable 'less'
commit: wrote '/usr/lib/perl5/5.8.8/CPAN/Config.pm'
CPAN: File::HomeDir loaded ok (v0.65)
CPAN: Storable loaded ok (v2.16)
Going to read /home/.cpan/Metadata
Database was generated on Wed, 15 Aug 2007 01:38:08 GMT
Acme:pork is up to date (0.0.7).
perlmod--Install done
i,m facing perl script on my server and i can,t find a way to protect it from perl
really i need the best way
i choose this forum because most of you here are expert in this filed . ... ..
Want to apply this to a forum
[url]
I think I installed html2ps correctly, but I do not know how to get ps2pdf installed on Centos 4.5
I have cpanel as well
We are using FreeBsd with Cpanel.
Some one has upload some scripts,they are running and attacking
to other systems.
last pid: 64017; load averages: 59.59, 60.75, 63.04 up 19+22:52:28 12:03:45
457 processes: 61 running, 315 sleeping, 81 zombie
CPU states: 52.4% user, 0.0% nice, 47.6% system, 0.0% interrupt, 0.0% idle
Mem: 465M Active, 212M Inact, 236M Wired, 22M Cache, 111M Buf, 62M Free
Swap: 2048M Total, 458M Used, 1590M Free, 22% Inuse
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
3282 root 128 0 37536K 30520K RUN 3:49 4.79% 4.79% perl
62953 root 128 0 30284K 25248K RUN 0:05 1.90% 1.90% perl
49249 root 128 0 33720K 28876K RUN 0:46 1.86% 1.86% perl
2981 root 128 0 40928K 30724K RUN 3:56 1.56% 1.56% perl
76809 nobody 127 0 4148K 2080K RUN 13:52 1.42% 1.42% perl5.8.8
19633 nobody 127 0 4148K 2128K RUN 2:34 1.42% 1.42% perl5.8.8
57451 nobody 126 0 4148K 2072K RUN 39:24 1.22% 1.22% perl5.8.8
76599 nobody 126 0 4148K 2080K RUN 13:53 1.22% 1.22% perl5.8.8
76966 nobody 126 0 4148K 2080K RUN 14:01 1.17% 1.17% perl5.8.8
60286 nobody 126 0 4148K 2072K RUN 38:42 1.12% 1.12% perl5.8.8
77488 nobody 126 0 4148K 2080K RUN 13:48 1.12% 1.12% perl5.8.8
77697 nobody 126 0 4148K 2080K RUN 13:47 1.12% 1.12% perl5.8.8
56573 nobody 126 0 4148K 2096K RUN 39:55 1.07% 1.07% perl5.8.8
58126 nobody 126 0 4148K 2072K RUN 39:11 1.07% 1.07% perl5.8.8
76513 nobody 126 0 4148K 2080K RUN 13:58 1.07% 1.07% perl5.8.8
76807 nobody 126 0 4148K 2080K RUN 13:57 1.07% 1.07% perl5.
What would I have to add inside .htaccess to allow perl scripts to run?
View 1 Replies View RelatedI've got a rouge perl script running on one of my servers and need help in tracking it down.
TOP
1877 apache 25 0 4856 3060 1252 R 49.9 0.3 13:51.98 perl
as soon as ps is killed it restarts
/tmp
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.1
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.10
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.11
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.12
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.13
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.14
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.15
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.16
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.17
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.18
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.2
-rw-r--r-- 1 apache apache 48444 Apr 15 01:11 blue.3
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.4
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.5
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.6
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.7
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.8
-rw-r--r-- 1 apache apache 29572 Apr 15 01:11 blue.9
and over the past couple of days there's been a number of these
-rw------- 1 apache apache 99 Apr 20 02:22 sess_00f39873b47be556f0c047e96b726640
-rw------- 1 apache apache 68 Apr 20 08:20 sess_01d2ba3e471475384ea3c1d2ff1cde7f
-rw------- 1 apache apache 0 Apr 20 06:04 sess_01ea1b9ebe41331239ded82506f66090
-rw------- 1 apache apache 0 Apr 19 23:04 sess_0a83f93845da3fabce31d897f13735b0
-rw------- 1 apache apache 68 Apr 20 01:50 sess_0c83beb8ba2ce1f42833874b0d8a7470
-rw------- 1 apache apache 68 Apr 20 08:25 sess_0d5989b161d7d6434692de42faa248ab
-rw------- 1 apache apache 0 Apr 19 18:15 sess_10f858c3904a12a1e4c9e7da70e0fbb8
-rw------- 1 apache apache 26 Apr 20 09:39 sess_11a8b8d85883c8f2da146bb8f97bd25e
-rw------- 1 apache apache 68 Apr 19 14:22 sess_11f018952ec1cae08e6d8a95a0c99287
-rw------- 1 apache apache 26 Apr 19 21:18 sess_1706bf1b9e5d4b09e29cfbc3517d6755
-rw------- 1 apache apache 26 Apr 20 02:22 sess_1c48c7232dbc7087c312d43debb942a7
-rw------- 1 apache apache 0 Apr 20 06:46 sess_1cdf7ecf082c27f389b759adef50f932
-rw------- 1 apache apache 0 Apr 20 08:04 sess_1d6d06ea737c1eff71152a590cd420a4
-rw------- 1 apache apache 26 Apr 20 09:42 sess_26b16f5a5b59639af28f6bc49dba1ed5ly
I am trying to write a perl script, it send's mail to a user i used system(mail -s test) and also send some messages using this.
but my issue is i receive mail with html code like <br> and so..
how to get a plain mail using this system command.
How can see just perl or exim runing process with ssh on linux?
View 2 Replies View RelatedI'm getting a internal 500 on a test perl file that I placed inside cgi-bin
This is a cpanel box with suphp enabled ....
I've used Servage for about 18 months. For most of that time there have been no problems. Then they decided to upgrade the cluster. This happened 3 weeks ago. Since then, there has been a catalogue of problems, mostly centred around a Perl script my site uses to implement a wiki.
The first problem was that they had removed four of the supporting Perl modules used by my Perl script. All of the missing modules are ones you would expect to find on any server that claims to support Perl. They had warned that this might happen (obviously too difficult for them to make sure that the upgraded server has all the Perl modules) so I notified them with a list of missing modules expecting the modules to be restored quickly. It actually took 1 week, during which time their support team tried their best to annoy me by giving responses related to PHP (apparently they'd managed to kill PHP scripting completely) and a non-working link to a list of installed modules (I knew what was installed already).
Having now got the script running, I hit a further problem. Prior to the upgrade the script had run under the "webserver" account. It was now running under the "you" account. This meant it couldn't write to its own data files. I had real trouble getting Servage to understand this one, let alone fix it. Most of their answers were about how to change the ownership of my script, which makes absolutely no difference to the problem. Eventually, after 4 days, they tried to fix the problem. The result was that my website became completely inaccessible. Even the static content was giving a 403 error. Again, it took support a while to understand the problem and about 1.5 days to fix it.
At this point Servage claimed to have fixed all outstanding issues. However, my script was still running under the wrong account. In frustration, I changed the ownership of all the script's data files to "you", which at least got my wiki running again.
However, I now find that people can't upload images to the site. Any attempt to do so produces an error "CGI open of tmpfile: Permission denied".
I've given up. I think my chances of getting Servage to even understand the problem are minimal. I'm not even going to try. I will be moving to another host as soon as possible - probably a VPS. That way I should be able to fix most problems myself.
Trying to Image::Magick via whm perl module installer. Got the below error.
{standard input}:99: Warning: size of "opacity" is already 2; not changing to 8
{standard input}:155: Warning: size of "backdrop" is already 4; not changing to 288
{standard input}:159: Warning: size of "magnify" is already 4; not changing to 288
make: *** [Magick.o] Error 1
JCRISTY/PerlMagick-6.40.tar.gz
/usr/bin/make -- NOT OK
CPAN: YAML loaded ok (v0.66)
Running make install
Make had returned bad status, install seems impossible
perlmod--Install done
I'm using perl 5.8.8
This is perl, v5.8.8 built for i686-linux
what command I must write into SSH to see if perl is installed or not?
View 4 Replies View Relatedwe have a customer who has Red Hat Enterprise Linux 4 on there server and they have asked us to install GD-1.8 and perl-GD-1.33-1.i386 every time we try and install GD-1.8 it says 'GD-2.2 is newer blah blah' and we can not continue. Dose any one know how this can be done and if so could they please give us some information of how to do it.
we have been thinking about forcing 1.8 to install but we do not think this is a good solution as it will cause other problems.
to install these two but whm did not find them
html2ps
ps2pdf
Only found this,
Meta::Tool:s2Pdf
not sure if that is the proper one anyway.
Using perl 5.8.8 / centos 4.5
i've to install perl-XML-Parser on my dedicated server. i'm using centOS4.5. i tried
Code:
yum install perl-XML-Parser
after that command i got:
Code:
Setting up Install Process
Setting up repositories
Reading repository metadata in from local files
Excluding Packages in global exclude list
Finished
Parsing package install arguments
No Match for argument: perl-XML-Parser
Nothing to do
if anyone asks why i've to install it, i want to install VNC. while installing gnome with that command:
Code:
yum install gnome*
i got that error :
Code:
--> Running transaction check
--> Processing Dependency: perl-XML-Parser for package: intltool
--> Finished Dependency Resolution
Error: Missing Dependency: perl-XML-Parser is needed by package intltool
so, i think that i've to install perl-XML-Parser. but how?
find my server filled with suspicious perl processes, most likely the result of bad PHP coding somewhere on my box. I successfully eradicated all of it, but I know it'll only come back again unless I figure out where it came from. Anyone have any ideas how to track it down? I'd search all the httpd logs for each domain, but I don't really know what I'd be looking for.
View 3 Replies View RelatedI'm nearly at my wits end with this.
My server keeps going down lately, and I suspect some kind of DoS. Whenever it does, sometimes I can even watch it happen. Such as:
Quote:
80 requests currently being processed, 0 idle workers
WWWWWWWWWWWWWWWWWWKWWWWWWWWWWWWWWWWWWWKWWWWWWWWWWWWWWCWWWWWWCWWW
WWWWWWCWKWWWWWWW
I watched it fill up like that, from my NORMAL status:
Quote:
13.8 requests/sec - 33.6 kB/second - 2484 B/request
22 requests currently being processed, 36 idle workers
___K__C____CC__C_C_____.C_C____C_CC_K___K_K_KKK__KCKK__W___.....
................
That's what it usually looks like. Anyway, more and more Ws were added in a matter of seconds as I watched it. Next thing, my site doesn't load, and it goes dead. My TimeOut in apache was set to 5 seconds. Now it's at 2, though. I do have keep alive on, but it is VERY low, like its set to 2 seconds and the max keep alives is set to 15 or so.
I have been working on even just catching who is doing this for about 2 weeks now, trying everything to my ability. Here is everything from start to finish:
1. First I tried mod_evasive - this program seems worthless, it doesn't ever detect anything. I can post settings if need be, but ive played with it and it just doesn't work well I find. I have more trouble with it getting false positives. Also, I tried going over the apache logs. For me, this has been a nightmare because its just so hard to see between attackers and non attackers... and i've come up with nothing.
2. I tried APF with AntiDOS but it didn't seem to do anything...
3. I read about DDoS deflate by medialayer, and installed it and gave it a shot. It didn't do anything for me. I tried poking around with the command they have on their website and I found the results quite weird, it didnt show me all of the IPs like it was supposed to, but rather some mess like:
Code:
1 (ip here)
3 (ip here)
9
(1 addres
ses)
So I did more searches online, and eventually came across this command:
Code:
netstat -ntu | grep ':' | awk '{print $5}' | awk '{sub("::ffff:","");print}' | cut -f1 -d ':' | sort | uniq -c | sort -nr
This seemed nice, looked like it was working as it should this time. I used the test.pl ( my only test for this, I have trouble finding other tools )that comes with mod_evasive and sure enough it showed connections by me in there about like 150 or so after. I thought, 'hey thats pretty good, now ill try to make a script to parse it.' I did this, and then croned the script to run every minute.
Then I asked a friend of mine who I know has a better "DoS"er (though won't give it to anyone, understandably) to test the defence. It didn't hold up well at all. He suggested making the script run in an infinite loop instead of a cron, and make it sleep in the loop forever.
I did just that, and it now runs every 5 seconds. Here is the script, it's not the best, but it's all I've got now:
Code:
#!/usr/bin/perl
# Dos
use IO::Socket;
my $command;
for (my $i=0; 1; $i++) {
$command = `netstat -ntu | grep ':' | awk '{print $5}' | awk '{sub("::ffff:","");print}' | cut -f1 -d ':' | sort | uniq -c | sort -nr`;
@lines = split /
/, $command;
foreach my $line (@lines)
{
@twospleet = split(" ", $line);
if($twospleet[0] > 150) {
if($twospleet[1] != "") {
$carp=$twospleet[1];
$carp2=$twospleet[0];
$block = "/usr/local/sbin/apf -d $carp $carp2";
system($block);
}
}
}
sleep(5);
}
This actually worked; he started his attack, it found his IP, and he was blocked, and I didn't go down. The netstat command showed him in with some 200 something connections before he was blocked.
I was not able to see if this was effective against this issue until today, haven't been hit for 4 days now or so (perhaps some sort of easter vacation?). Today though, I watched the same thing happen again, filled to the brim with Ws.
The netstat command I found doesn't seem to be helping me here. If I am correct:
W means Sending Reply, according to the server status page. So what's going on here, someones making lots of connections and my system can't send a reply back for some reason?
My main questions are,
1. Am I right, that this is some kind of DoS?
2. If yes, how is this being done? And are there any test scripts available that I can download and try on myself to watch the statistics & test some more?
3. And again, how can I go about detecting whatever this is? Maybe some better netstat command, or something I can look for on the command page?
4. Is there any way to improve my perl script to protect against this?
5. If it isn't a DoS attack, what else might it be?
