I have this connection string on an older server which works fine and connects to a remote oracle server.

On this new server I installed oracle instant client simple and devel and php pecl oci8. Below is the screenshot of the oci8.

Here is the code I use to connect

$db = "(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=" . $ORACLE_HOST . ")(PORT=" . $ORACLE_PORT . ")))(CONNECT_DATA=(SID=" . $ORACLE_DB . ")))";
$this->dbh = oci_connect($ORACLE_USER, $ORACLE_PASS, $db);

But when I try to connect to oracle I get this error

oci_connect(): Error while trying to retrieve text for error ORA-28547

If I type a random hostname I get ORA-12154 error which makes sense If I type a random SID I get ORA-12514 error which makes sense If I type a random port I get ORA-12545 error which makes sense If I nc the server and port I get this result

Ncat: Version 7.50 ( https://nmap.org/ncat )
Ncat: Connected to 10.10.40.21:1521.
Ncat: 0 bytes sent, 0 bytes received in 0.02 seconds.

System I use is Centos 7 64bit, php 5.6

Anyone has any idea why this might happen?

I know this question might be too broad but I'm desperate.

Prenote: Here I'm testing php with CLI but same difference occurs with Apache+PHP too. But to avoid Apache caching and other stuff I used only php cli for testing.

I've two dedicated VM servers.

First one is running 4gb memory 32bit Centos 6.8 PHP 5.3.3

Second one is fresh install 8gb memory 64bit Centos 7.5 PHP 5.4.16

I've a test script written in PHP that does some basic operations (nothing related to databases or other services just basic operations like calculations e.t.c)

I also tested these two servers by downloading Codeigniter and run it on both. If you know by default codeigniter welcome page shows how long did it take to generate welcome screen.

Command that I run to test scripts is from SSH client and it simply

[root@domain]php /path/to/my/script.php

Problem is old server always (my script, codeigniter welcome page, on any script) runs 60-70 percent faster than new server.

I even installed second server twice to make sure I haven't messed up but results are same. New server is 60-70 percent slower.

What might be the problem?

Edit

Seems the problem is APC. Old server is running APC while new server has APCu. While old server's APC is caching the files, new server's APCu seems to be running but no matter I did in config it does not cache files. I disable APCu in config and apc.php monitoring panel says APC is not enabled which is the proof config file is ok but when I enable APCu, it seems to be running but never caches the files. APCu config file is default but it doesn't cache. I removed and reinstalled php-pecl-apcu with yum but still not caching. Current version is 4.0.11-1.el7

I have this setup

• CentOS 7 64bit
• Python 2.7 and 3.6
• pip and pip3.6
• dlib 19.3
• libboost 1.53

I've dlib 19.3.0 libboost 1.53 working properly with python 2.7

Now I need to run dlib and libboost with python 3. I tried several things but no luck. I get this error when i try to import dlib in python 3

import dlib
  File "/usr/lib64/python3.6/site-packages/dlib/__init__.py", line 1, in <module>
    from .dlib import *
ImportError: libboost_python3.so.1.64.0: cannot open shared object file: No such file or directory

Reason it says libboost_python3.so.1.64.0 because i tried many things to make it work even trying to build dlib and libboost from source (which i've no idea what i was doing) but no luck.

I really appreciate any help you can provide to make dlib and libboost work with python 3.

I need to redirect HTTPS connections to HTTP site. The problem is there is a SSL certificate on the server. It has problems and we applied to get a new one. But google already indexed our site with https prefix and all firefox users coming from google search result lands on SSL error page. Explorer, Chrome, Safari works fine but Firefox gives SSL error page.

I tried the code below in .htaccess file but since SSL connection already established code below does not work.

RewriteEngine on
RewriteCond %{HTTPS} on
RewriteRule .* http://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

Is there a way to tell apache never establish secure connection with client and serve non-secure version of the site?

I've a CentOS & ISPConfig server and couple domains on it. One specific domain xyz.com is on the server for testing purposes but actual DNS record from registrar (Godaddy) is pointed to another server having public website up and running. I mean this xyz.com domain has no relation with my linux server and never did before ever. I just created on my linux to test some php codes. But in apache log files I see some remote IP addresses that request this xyz.com domain from my server. How they know that this account is on my server, how's that possible?

I setup a centos server by following howtoforge tutorials. It works fine but I noticed something and not sure how to solve it.

I open up Google Chrome open my site then press and hold F5 (refresh page) this makes browser send so many requests to server.

I check the log files and there are tens, hundreds of same url request from my ip. it doesn't even display requests like .js .css or image files. Just the address I refreshed and several lines one after the other like the one below.

This cause server to not respond after finish all.

I minimized sql queries to mysql and almost all data comes from APC cache. I enabled and checked the mysql query log and it runs only 2-3 queries per page display. rest comes from APC.

top command does not display high server load during this time but displays many apache processes.

How can I solve this issue? Is there a way to limit/block each ip not to request same url this many.

192.168.162.191 - - [06/Sep/2013:12:26:29 +0300] "GET /en/page1 HTTP/1.1" 200 10084 "http://domain.com/en/page1" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36"

EDIT 1

I pressed and holded F5 for 5 soconds and this happened. Server load normally is zero. No one is on server.

Page generation time is 200ms

Top output

top - 08:23:00 up 41 days, 11:32,  1 user,  load average: 0.12, 0.05, 0.01
Tasks: 490 total,   2 running, 488 sleeping,   0 stopped,   0 zombie
Cpu(s): 27.9%us,  5.6%sy,  0.0%ni, 66.5%id,  0.0%wa,  0.1%hi,  0.0%si,  0.0%st
Mem:   2979104k total,  2141960k used,   837144k free,   178948k buffers
Swap:  3112952k total,    14112k used,  3098840k free,   775020k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
18293 web1      20   0  146m  27m  16m R 83.9  1.0   0:02.96 php-cgi
25247 mysql     20   0  213m  57m 4996 S 22.9  2.0   3:34.66 mysqld
18465 web1      20   0  143m  22m  13m S  9.3  0.8   0:00.28 php-cgi
18467 web1      20   0  143m  22m  13m S  9.3  0.8   0:00.28 php-cgi
18431 web1      20   0  143m  22m  13m S  4.6  0.8   0:00.14 php-cgi
31704 apache    20   0 25204 3648  708 S  1.3  0.1   0:01.10 httpd
31701 root      20   0  151m  20m  11m S  1.0  0.7   0:02.34 httpd
18295 root      20   0  2836 1304  864 R  0.7  0.0   0:00.13 top
    9 root      20   0     0    0    0 S  0.3  0.0   0:12.50 ksoftirqd/1
 1378 root       0 -20     0    0    0 S  0.3  0.0   5:12.68 iscsi_q_30
18200 apache    20   0  151m  13m 4668 S  0.3  0.5   0:00.01 httpd
18330 apache    20   0  151m  13m 4676 S  0.3  0.5   0:00.01 httpd
    1 root      20   0  2900 1316 1164 S  0.0  0.0   0:05.91 init
    2 root      20   0     0    0    0 S  0.0  0.0   0:00.03 kthreadd
    3 root      RT   0     0    0    0 S  0.0  0.0   0:26.73 migration/0
    4 root      20   0     0    0    0 S  0.0  0.0   5:01.34 ksoftirqd/0
    5 root      RT   0     0    0    0 S  0.0  0.0   0:00.00 migration/0

Output of ps uax | grep httpd | wc -l is 238 . Idle is at around 20.

I use ClamAV 0.97.8/17494 on CentOS 6.4. It's good but can't find viruses in rar files. It can detect same virus file as it is or in a zip file but in rar file ClamAV reports no virus.

ScanArchive=yes option is already enabled

I searched a lot on google but couldn't find a solution.

Does anyone know if there is a fix for this?

EDIT 1

Package unrar-4.2.3-1.el6.rf.i686 already installed and latest version

EDIT 2

ClamAV was installed using yum install clamav clamd

#ldd $(which clamscan)
linux-gate.so.1 =>  (0x008fb000)
libclamav.so.6 => /usr/lib/libclamav.so.6 (0x0051a000)
libpthread.so.0 => /lib/libpthread.so.0 (0x00ddc000)
libc.so.6 => /lib/libc.so.6 (0x002d3000)
libz.so.1 => /lib/libz.so.1 (0x00490000)
libbz2.so.1 => /lib/libbz2.so.1 (0x00dc3000)
libm.so.6 => /lib/libm.so.6 (0x004a6000)
libdl.so.2 => /lib/libdl.so.2 (0x00489000)
/lib/ld-linux.so.2 (0x002ad000)

This question is almost same problem like mine but accepted answer doesn't solve my issues

In Fail2Ban, How to Change the SSH port number?

SSH on port 22 everything works great. After 5 attempts fail2ban reads from logs and bans my ip for 600 seconds. And here is fail2ban log

2013-07-10 11:54:08,522 fail2ban.actions: WARNING [ssh-iptables] Ban 192.168.162.191
2013-07-10 12:04:09,348 fail2ban.actions: WARNING [ssh-iptables] Unban 192.168.162.191

My iptables, fail2ban has port 22

Chain INPUT (policy ACCEPT 1591 packets, 165K bytes)
 pkts bytes target     prot opt in     out     source               destination
   44  5292 fail2ban-SSH  tcp  --  *      *       0.0.0.0/0            0.0.0.0/0           tcp dpt:22

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination

Chain OUTPUT (policy ACCEPT 181 packets, 71152 bytes)
 pkts bytes target     prot opt in     out     source               destination

Chain fail2ban-SSH (1 references)
 pkts bytes target     prot opt in     out     source               destination
   35  4836 RETURN     all  --  *      *       0.0.0.0/0            0.0.0.0/0

I change SSH port to let say 12345 by editing ssh config

vi /etc/ssh/sshd_config
service sshd restart

Now ssh works on port 12345 not 22, totally fine

Logs show my failed login attempts properly

After 5 attempts fail2ban log file displays ban

2013-07-10 11:37:33,124 fail2ban.actions: WARNING [ssh-iptables] Ban 192.168.162.191

PROBLEM IS

But it never bans me from SSH port 12345, I can still access ssh and login

I believe this is because iptables has rule for fail2ban on port 22 but not sure how to edit it. Because if I restart fail2ban it adds it's own rule again with port 22

EDIT 1:

jail.conf

# Fail2Ban jail specifications file
#
# Comments: use '#' for comment lines and ';' (following a space) for inline comments
#
# Changes:  in most of the cases you should not modify this
#           file, but provide customizations in jail.local file, e.g.:
#
# [DEFAULT]
# bantime = 3600
#
# [ssh-iptables]
# enabled = true
#

# The DEFAULT allows a global definition of the options. They can be overridden
# in each jail afterwards.

[DEFAULT]

# "ignoreip" can be an IP address, a CIDR mask or a DNS host. Fail2ban will not
# ban a host which matches an address in this list. Several addresses can be
# defined using space separator.
ignoreip = 127.0.0.1/8

# "bantime" is the number of seconds that a host is banned.
bantime  = 600

# A host is banned if it has generated "maxretry" during the last "findtime"
# seconds.
findtime  = 600

# "maxretry" is the number of failures before a host get banned.
maxretry = 3

# "backend" specifies the backend used to get files modification.
# Available options are "pyinotify", "gamin", "polling" and "auto".
# This option can be overridden in each jail as well.
#
# pyinotify: requires pyinotify (a file alteration monitor) to be installed.
#              If pyinotify is not installed, Fail2ban will use auto.
# gamin:     requires Gamin (a file alteration monitor) to be installed.
#              If Gamin is not installed, Fail2ban will use auto.
# polling:   uses a polling algorithm which does not require external libraries.
# auto:      will try to use the following backends, in order:
#              pyinotify, gamin, polling.
backend = auto

# "usedns" specifies if jails should trust hostnames in logs,
#   warn when DNS lookups are performed, or ignore all hostnames in logs
#
# yes:   if a hostname is encountered, a DNS lookup will be performed.
# warn:  if a hostname is encountered, a DNS lookup will be performed,
#        but it will be logged as a warning.
# no:    if a hostname is encountered, will not be used for banning,
#        but it will be logged as info.
usedns = warn


# This jail corresponds to the standard configuration in Fail2ban 0.6.
# The mail-whois action send a notification e-mail with a whois request
# in the body.

[ssh-iptables]

enabled  = true
filter   = sshd
port     = ssh #TRIED TO PUT HERE 12345 port number but problem persists
action   = iptables[name=SSH, port=ssh, protocol=tcp]
           sendmail-whois[name=SSH, dest=root, [email protected]]
logpath  = /var/log/secure
maxretry = 5

[proftpd-iptables]

enabled  = false
filter   = proftpd
action   = iptables[name=ProFTPD, port=ftp, protocol=tcp]
           sendmail-whois[name=ProFTPD, [email protected]]
logpath  = /var/log/proftpd/proftpd.log
maxretry = 6

# This jail forces the backend to "polling".

[sasl-iptables]

enabled  = false
filter   = sasl
backend  = polling
action   = iptables[name=sasl, port=smtp, protocol=tcp]
           sendmail-whois[name=sasl, [email protected]]
logpath  = /var/log/mail.log

# ASSP SMTP Proxy Jail
[assp]
enabled  = false
filter   = assp
action = iptables-multiport[name=assp,port="25,465,587"]
logpath  = /root/path/to/assp/logs/maillog.txt

# Here we use TCP-Wrappers instead of Netfilter/Iptables. "ignoreregex" is
# used to avoid banning the user "myuser".

[ssh-tcpwrapper]

enabled     = false
filter      = sshd
action      = hostsdeny
              sendmail-whois[name=SSH, [email protected]]
ignoreregex = for myuser from
logpath     = /var/log/sshd.log

# Here we use blackhole routes for not requiring any additional kernel support
# to store large volumes of banned IPs

[ssh-route]

enabled = false
filter = sshd
action = route
logpath = /var/log/sshd.log
maxretry = 5

# Here we use a combination of Netfilter/Iptables and IPsets
# for storing large volumes of banned IPs
#
# IPset comes in two versions. See ipset -V for which one to use
# requires the ipset package and kernel support.
[ssh-iptables-ipset4]

enabled  = false
filter   = sshd
action   = iptables-ipset-proto4[name=SSH, port=ssh, protocol=tcp]
logpath  = /var/log/sshd.log
maxretry = 5

[ssh-iptables-ipset6]
enabled  = false
filter   = sshd
action   = iptables-ipset-proto6[name=SSH, port=ssh, protocol=tcp, bantime=600]
logpath  = /var/log/sshd.log
maxretry = 5

# bsd-ipfw is ipfw used by BSD. It uses ipfw tables.
# table number must be unique.
# 
# This will create a deny rule for that table ONLY if a rule 
# for the table doesn't ready exist.
#
[ssh-bsd-ipfw]
enabled  = false
filter   = sshd
action   = bsd-ipfw[port=ssh,table=1]
logpath  = /var/log/auth.log
maxretry = 5

# This jail demonstrates the use of wildcards in "logpath".
# Moreover, it is possible to give other files on a new line.

[apache-tcpwrapper]

enabled  = false
filter   = apache-auth
action   = hostsdeny
logpath  = /var/log/apache*/*error.log
           /home/www/myhomepage/error.log
maxretry = 6

# The hosts.deny path can be defined with the "file" argument if it is
# not in /etc.

[postfix-tcpwrapper]

enabled  = false
filter   = postfix
action   = hostsdeny[file=/not/a/standard/path/hosts.deny]
           sendmail[name=Postfix, [email protected]]
logpath  = /var/log/postfix.log
bantime  = 300

# Do not ban anybody. Just report information about the remote host.
# A notification is sent at most every 600 seconds (bantime).

[vsftpd-notification]

enabled  = false
filter   = vsftpd
action   = sendmail-whois[name=VSFTPD, [email protected]]
logpath  = /var/log/vsftpd.log
maxretry = 5
bantime  = 1800

# Same as above but with banning the IP address.

[vsftpd-iptables]

enabled  = false
filter   = vsftpd
action   = iptables[name=VSFTPD, port=ftp, protocol=tcp]
           sendmail-whois[name=VSFTPD, [email protected]]
logpath  = /var/log/vsftpd.log
maxretry = 5
bantime  = 1800

# Ban hosts which agent identifies spammer robots crawling the web
# for email addresses. The mail outputs are buffered.

[apache-badbots]

enabled  = false
filter   = apache-badbots
action   = iptables-multiport[name=BadBots, port="http,https"]
           sendmail-buffered[name=BadBots, lines=5, [email protected]]
logpath  = /var/www/*/logs/access_log
bantime  = 172800
maxretry = 1

# Use shorewall instead of iptables.

[apache-shorewall]

enabled  = false
filter   = apache-noscript
action   = shorewall
           sendmail[name=Postfix, [email protected]]
logpath  = /var/log/apache2/error_log

# Monitor roundcube server

[roundcube-iptables]

enabled  = false
filter   = roundcube-auth
action   = iptables[name=RoundCube, port="http,https"]
logpath  = /var/log/roundcube/userlogins


# Monitor SOGo groupware server

[sogo-iptables]

enabled  = false
filter   = sogo-auth
# without proxy this would be:
# port    = 20000
action   = iptables[name=SOGo, port="http,https"]
logpath  = /var/log/sogo/sogo.log

# Ban attackers that try to use PHP's URL-fopen() functionality
# through GET/POST variables. - Experimental, with more than a year
# of usage in production environments.

[php-url-fopen]

enabled = false
action  = iptables[name=php-url-open, port="http,https"]
filter  = php-url-fopen
logpath = /var/www/*/logs/access_log
maxretry = 1

# A simple PHP-fastcgi jail which works with lighttpd.
# If you run a lighttpd server, then you probably will
# find these kinds of messages in your error_log:
# ALERT – tried to register forbidden variable ‘GLOBALS’
# through GET variables (attacker '1.2.3.4', file '/var/www/default/htdocs/index.php')
# This jail would block the IP 1.2.3.4.

[lighttpd-fastcgi]

enabled = false
filter  = lighttpd-fastcgi
action  = iptables[name=lighttpd-fastcgi, port="http,https"]
# adapt the following two items as needed
logpath = /var/log/lighttpd/error.log
maxretry = 2

# Same as above for mod_auth
# It catches wrong authentications

[lighttpd-auth]

enabled = false
filter  = lighttpd-auth
action  = iptables[name=lighttpd-auth, port="http,https"]
# adapt the following two items as needed
logpath = /var/log/lighttpd/error.log
maxretry = 2

# This jail uses ipfw, the standard firewall on FreeBSD. The "ignoreip"
# option is overridden in this jail. Moreover, the action "mail-whois" defines
# the variable "name" which contains a comma using "". The characters '' are
# valid too.

[ssh-ipfw]

enabled  = false
filter   = sshd
action   = ipfw[localhost=192.168.0.1]
           sendmail-whois[name="SSH,IPFW", [email protected]]
logpath  = /var/log/auth.log
ignoreip = 168.192.0.1

# These jails block attacks against named (bind9). By default, logging is off
# with bind9 installation. You will need something like this:
#
# logging {
#     channel security_file {
#         file "/var/log/named/security.log" versions 3 size 30m;
#         severity dynamic;
#         print-time yes;
#     };
#     category security {
#         security_file;
#     };
# };
#
# in your named.conf to provide proper logging.
# This jail blocks UDP traffic for DNS requests.

# !!! WARNING !!!
#   Since UDP is connection-less protocol, spoofing of IP and imitation
#   of illegal actions is way too simple.  Thus enabling of this filter
#   might provide an easy way for implementing a DoS against a chosen
#   victim. See
#    http://nion.modprobe.de/blog/archives/690-fail2ban-+-dns-fail.html
#   Please DO NOT USE this jail unless you know what you are doing.
#
# [named-refused-udp]
#
# enabled  = false
# filter   = named-refused
# action   = iptables-multiport[name=Named, port="domain,953", protocol=udp]
#            sendmail-whois[name=Named, [email protected]]
# logpath  = /var/log/named/security.log
# ignoreip = 168.192.0.1

# This jail blocks TCP traffic for DNS requests.

[named-refused-tcp]

enabled  = false
filter   = named-refused
action   = iptables-multiport[name=Named, port="domain,953", protocol=tcp]
           sendmail-whois[name=Named, [email protected]]
logpath  = /var/log/named/security.log
ignoreip = 168.192.0.1

# Multiple jails, 1 per protocol, are necessary ATM:
# see https://github.com/fail2ban/fail2ban/issues/37
[asterisk-tcp]

enabled  = false
filter   = asterisk
action   = iptables-multiport[name=asterisk-tcp, port="5060,5061", protocol=tcp]
           sendmail-whois[name=Asterisk, [email protected], [email protected]]
logpath  = /var/log/asterisk/messages
maxretry = 10

[asterisk-udp]

enabled  = false
filter   = asterisk
action   = iptables-multiport[name=asterisk-udp, port="5060,5061", protocol=udp]
           sendmail-whois[name=Asterisk, [email protected], [email protected]]
logpath  = /var/log/asterisk/messages
maxretry = 10

# To log wrong MySQL access attempts add to /etc/my.cnf:
# log-error=/var/log/mysqld.log
# log-warning = 2
[mysqld-iptables]

enabled  = false
filter   = mysqld-auth
action   = iptables[name=mysql, port=3306, protocol=tcp]
           sendmail-whois[name=MySQL, dest=root, [email protected]]
logpath  = /var/log/mysqld.log
maxretry = 5


# Jail for more extended banning of persistent abusers
# !!! WARNING !!!
#   Make sure that your loglevel specified in fail2ban.conf/.local
#   is not at DEBUG level -- which might then cause fail2ban to fall into
#   an infinite loop constantly feeding itself with non-informative lines
[recidive]

enabled  = false
filter   = recidive
logpath  = /var/log/fail2ban.log
action   = iptables-allports[name=recidive]
           sendmail-whois-lines[name=recidive, logpath=/var/log/fail2ban.log]
bantime  = 604800  ; 1 week
findtime = 86400   ; 1 day
maxretry = 5

# PF is a BSD based firewall
[ssh-pf]

enabled=false
filter = sshd
action = pf
logpath  = /var/log/sshd.log
maxretry=5

I setup CentOS and samba on a VM. I configured smb.conf and I can browse \ip_address and see files read and write. Up to here is fine.

What I want to do is (I did it before but I forgot how to do it) when I type \ip_address on windows machine I want samba to ask me username and password. Then I'll be able to see all shared folders on samba

I use the config below but samba never asks me username and password and this is a fresh installation and I don't have any saved passwords.

Samba version 3.6.9-151.el6

[web]
  comment = Web
  browsable = yes
  path = /var/www/html
  valid users = @ergec
  force group = root
  force user = root
  create mask = 0660
  directory mask = 0771
  writable = yes
  read only = No
  create mask = 00
  force create mode = 0770
  force directory mode = 0770
  guest ok = Yes
  vfs objects = recycle

I have a server centos 5.5 running vmware server 2 on it. I decided to install esxi5 on a different machine and test it. I copied one of my virtual machines on esxi 5. But machine I copied gives a blue screen error. I even converted copied machine using vmkfstools -i uploaded.vmdk final.vmdk on esxi but still same. I can see windows 7 logo while loading then this blue screen.

Windows installation is clean, it almost has nothing installed on it and working on vmware server 2 fine.

Here is the screen shot I caught

I setup openvpn on CentOs for our office. I'm using it without any problem, can ping all PCs and servers, network printers.

Recently I installed Elastix Phone System to our office, it's in the same IP range and I can ping Elastix server and open it's web interface within office network but not through openvpn.

It's strange that I can still ping all PCs, servers, printers even the network phones that are connected to Elastix but can't ping Elastix itself through openvpn

I checked the firewall on Elastix, it's all turned off. I even tried to turn it on and allow openvpn port but still no luck.

Does anyone happen to have same or similar issue or can guess what might be the problem?

Thanks

Edit: Here is the route table.

172.21.17.8     *               255.255.255.248 U         0 0          0 eth2
192.168.123.0   *               255.255.255.0   U         0 0          0 eth0
default         172.21.17.14    0.0.0.0         UG        0 0          0 eth2

I want to shutdown my linux server right after power outage while it's on UPS. UPS runs like for extra 30 mins. I know that some UPSs can shutdown servers automatically but this is not my case now.

So I've in my mind to ping my router (or a PC in the network) and if pinging fails this means power outage (there may be a problem with the network too but never mind) and script will run

"#shutdown now"

How can I do this?

Edit: UPS is feeding two small servers so I can't use serial port on it (at least for both of them at the same time) . Our powerplant in Cyprus destroyed by a blast so until I get UPS for each server I need a temporary solution. That's why I'm asking this.

This is my first attempt to configure a vpn so I have very little knowledge about this.

Network where centos server is having local IPs 192.168.123.*

Network where windows machine is having local IPs 192.168.1.*

I installed and configured my openpvn server on centos 5 and client on a windows machine. Generated all keys, certificates e.t.c and transferred them to client and I'm able to connect to server. Below there is a screenshot of the client log.

Also on server side I can also see incoming packets with this command

tcpdump -n port 1723

So I assume I did most of the things correct.

But still when I try to open shared folders using \\192.168.123.33 or \\network-name I can't access folders

Edit:

And this is what I want to do and I'm not quite sure if I configured client and server config files correctly (routings or other stuff which I have no idea about).

Could you please guide me about config files and how should I do everything else.

Hello, A friend of mine has a domain from google (enom) and they are using gmail for their mail accounts. Now we want to host their website on another server. On ENOM I added www record, IP of new server and selected A which is ok for www.domain.com but how can I do settings for only domain.com without 'www' so website will be forwarded but I'll not mess up with emails and the rest.

Thanks in advance Best regards Ergec

I have the following setup.

A Centos machine (let say name is centoshost) connected to network and has static ip also running DNS server (BIND). IP is 192.168.1.33

Another CentOS virtual machine (centosguest) on centoshost (VMWare Server 2) IP of centosguest is 192.168.1.34 . Network adapter is bridged.

A windows machine connected to network and gets IP with DHCP from my router

All 3 machines have access to internet.

All 3 machines can ping others IP addresses

Here is the problem

On windows machine, I can ping "centoshost" name but I can't ping centosguest

On centoshost I can't ping centosguest

On centosguest I can't ping centoshost

I don't want to play with hosts file because I want who ever connect to network must see the centoshost and centosguest with their names.

I have DNS server on centoshost but not sure if it's needed to solve this issue.

What should I do to make both centoshost and centosguest accessible with their names not only with their IPs?

Thanks in advance Ergec

Possible Duplicate:
Can you help me with my software licensing question?

Hello, We have antivirus for all workstations except our file server. I was checking AVG File Server Edition but I didn't understand what do they mean by asking number of connections which starts from 2 up to 200?

http://www.avg.com/gb-en/avg-file-server-edition

Do they mean numbers of workstations? Why number of workstations matter, it's just a file server?

Thanks

I have a server CentOS 5.3 and WHM/cPanel 11.24 installed. In exim log files I noticed these wordings next to most of the emails.

Warning: Sender rate (a number, like 2.4) / 1h

Do you have any idea what it means?

I have a Linux VPS and a hosted exchange server from somewhere else. I can receive emails from my exchange server if I point mx entry on my VPS to exchange server. But if I point mx entry, same account on my VPS does not get emails. Yes this is how it works, I know. Is there a way to get emails on both remote exchange mail server and my local VPS? Is there any DNS settings for this? Basically I want to do something like mirroring.