similar to: slammed

I want to know the right command to type from a bash shell so that i can 1) Check the version of my cent os 2) Check all the open ports (tcp and udp) on my machine 3) Open a specific port say port 3306 so that a telnet request from a remote machiene can be accepted 4) Disable the effect of 3 above in case I want to Thanks in anticiaption of your kind responses to the questions

OS: CentosOS 7 I have installed samba + openldap + smbldap-tools + pam by: yum --enablerepo=extras install -y epel-release yum install -y smbldap-tools yum install -y samba openldap openldap-clients openldap-servers migrationtools yum install -y nss-pam* I know that smbldap-tools is a dead project, but I'm interested in it and would like research on it. I create users and

Hi All, So my electricity bill is through the roof and I need to pair down some equipment. I have a CentOS 6.5 Server (a few TB, 32gb RAM) running some simple web stuff and Zimbra. I have 5 static IP's from Comcast. I am considering giving this server a public IP and plugging it directly into my cable modem. This box can handle everything with room for me to do more. Doing this would allow

Not technically a centos question, but a lot of you guys seem to manage some large systems and I could use some clarification on a postfix setting.* *reject_unknown_client_hostname (in postfix < 2.3 reject_unknown_client) When I first used this there were issues with users trying to send mail through the server from hotels, wireless spots, etc. This was solved by pushing up permit

I'm using fail2ban with CentOS 6.6. Something is causing fail2ban's alerts sent to root's mail to be rejected. Here's a clip from one of the error messages: Message 48: From MAILER-DAEMON at lion.protogeek.org Sun Dec 21 03:09:20 2014 Return-Path: <MAILER-DAEMON at lion.protogeek.org> Date: Sun, 21 Dec 2014 03:09:19 -0600 From: Mail

I am trying shorewall as my previous post With alisias on eth1 loc and 4 pptp client vpns. The odd thing is when I enter one of the vpns in interfaces such as vpn1 it works. But if I enter the vpn in the hosts file shorewall blocks the vpns. shorewall/hosts #ZONE HOST(S) OPTIONS loc eth1:192.168.25.0/24 loctw eth1:192.168.50.0/24 locsa eth1:192.168.75.0/24 vpntw

I''m trying to get puppetrun to work, without luck so far. I have my puppetmaster and clients working fine with the clients polling the master. Now I want to be able to force an update. Using version 0.23.2 On the client I set listen=true and created the namespaceauth.conf file. Restarted puppetd and it appears fine. On the master I run puppetrun as root and get root@plane:/etc/puppet#

Hi Everyone, We rent a CentOS 7 VM from GoDaddy. We received a warning about excessive cpu usage, and a threat to cancel our service. We tracked it down to Apache and someone hammering our web server. The offending host is 59.64.129.175. To err on the side of caution we attempted to block the entire netblock. According to whois data, that's 59.64.128.0-59.64.159.255. iptables -A INPUT

Some lists and emails are distributed via ns1.samba.org. For those of you that use ORBS, you'll find it is blacklisted now. There is no mention of it on the website and it doesn't return a positive when you enter it for testing but it has slipped into the ORBS blacklist somewhere. Samba.org admins may wish to force all ns1 outbound email via another netblock, bringing it up to ORBS only

centos 6.4, setup to be syslog server. Doing remote syslog using tcp works fine, so now want to add relp. I installed the rsyslog-relp package and told rsyslog.conf to use it: # RELP Syslog Server: $ModLoad imrelp # provides RELP syslog reception $InputRELPServerRun 20514 when I restart rsyslog I am told it does not like my InputRELPServerRun line: Oct 28 13:43:54 scan rsyslogd: [origin

I've followed these commands successfully : - yum install bind bind-chroot bind-libs bind-utils - service named start When I used " host x.domain.com localhost" I got : using domain name server : name : localhost address : 172.0.0.1#53 host x.domain.com not found: 2(SERVFAIL) I've changed the ip settings from (Automatic dhcp to manual ) but with the same result... --

I'm trying : ' yum -y install krb5-workstation ', but I get : Error Download packages no more mirrors to try And can't find a solution by searching...

My manager was just asking me if it's out - he's just gotten a large number of updates on one of our systems, just now. Please note this is NOT INTENDED TO START ANOTHER IDIOT FLAMEWAR; I'm just asking for a clarification, given that I don't see anything on the CentOS site. mark mark

Greetings, I wonder why the bugfixes gets implemented so fast that there are frequent announcements in centos-announce list. If only I could lay my (very) dirty hands on the sources of information... With warm Regards, Rajagopal

Is there a reason that Postfix is installed and enabled by default on CentOS 7 minimal? -- Igal Sapir Lucee Core Developer Lucee.org <http://lucee.org/>

Hello Experts, When we can expect Security Update for Bind Vulnerability on Centos 6.8/7.2? ISC BIND Lightweight Resolver Protocol Req Processing Dos Vulnerability: CVE-2016-2775 -- With Thanks & Regards: Sidharth Sharma

Hi, ? I am searching around and I can?t find any GUI LVM manager included in a Centos live CD. ? I am trying to resize a LVM partition in a Centos 6.9 machine with a live CD. ? If I need any other distro, It?s fine with me ? Thanks! ? Miguel ?

On Wed, Apr 22, 2015 at 2:49 PM, David Both <dboth at millennium-technology.com> wrote: > Yes confusion will abound. There should only ever be one and only one DHCP > server on any network. With two you will sooner of later have multiple DHCP > client hosts with the same IP addresses. No, it's not going to give out duplicate IPs. The dual servers are configured as

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Well, i just unistall sendmail and install postfix. works sending mails, but now only receibe mails locally. i can receive from another ip Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server