[CentOS] iptables
I'm trying to do some simple tcp port forwarding [r...@wcmisdlin02 ~]# cat /proc/sys/net/ipv4/ip_forward 0 [r...@wcmisdlin02 ~]# /bin/echo 1 > /proc/sys/net/ipv4/ip_forward [r...@wcmisdlin02 ~]# cat /proc/sys/net/ipv4/ip_forward 1 [r...@wcmisdlin02 ~]# iptables --list Chain INPUT (policy ACCEPT) target prot opt source destination RH-Firewall-1-INPUT all -- anywhere anywhere Chain FORWARD (policy ACCEPT) target prot opt source destination RH-Firewall-1-INPUT all -- anywhere anywhere Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain RH-Firewall-1-INPUT (2 references) target prot opt source destination ACCEPT all -- anywhere anywhere ACCEPT icmp -- anywhere anywhereicmp any ACCEPT esp -- anywhere anywhere ACCEPT ah -- anywhere anywhere ACCEPT udp -- anywhere 224.0.0.251 udp dpt:mdns ACCEPT udp -- anywhere anywhereudp dpt:ipp ACCEPT tcp -- anywhere anywheretcp dpt:ipp ACCEPT all -- anywhere anywherestate RELATED,ESTABLISHED ACCEPT tcp -- anywhere anywherestate NEW tcp dpt:mysql ACCEPT tcp -- anywhere anywherestate NEW tcp dpt:ssh ACCEPT tcp -- anywhere anywherestate NEW tcp dpt:http ACCEPT tcp -- anywhere anywherestate NEW tcp dpt:ftp ACCEPT tcp -- anywhere anywherestate NEW tcp dpt:https REJECT all -- anywhere anywhere reject-with icmp-host-prohibited [r...@wcmisdlin02 ~]# iptables --table nat --append PREROUTING --proto tcp --dport 80 --jump DNAT --to 10.52.208.223:80 [r...@wcmisdlin02 ~]# iptables --table nat --list PREROUTING Chain PREROUTING (policy ACCEPT) target prot opt source destination DNAT tcp -- anywhere anywheretcp dpt:http to:10.52.208.223:80 [r...@wcmisdlin02 ~]# curl --verbose http://10.52.208.221:80 * About to connect() to 10.52.208.221 port 80 * Trying 10.52.208.221... Connection refused * couldn't connect to host * Closing connection #0 curl: (7) couldn't connect to host [r...@wcmisdlin02 ~]# -- http://alexus.org/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] iptables
On Thu, Sep 16, 2010 at 4:18 PM, wrote: > alexus wrote: >> I'm trying to do some simple tcp port forwarding >> > >> [r...@wcmisdlin02 ~]# iptables --table nat --append PREROUTING --proto >> tcp --dport 80 --jump DNAT --to 10.52.208.223:80 > ^^^ >> [r...@wcmisdlin02 ~]# curl --verbose http://10.52.208.221:80 > ^^^ >> * About to connect() to 10.52.208.221 port 80 >> * Trying 10.52.208.221... Connection refused >> * couldn't connect to host > > Could this be a problem? > > mark > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > iptables contains a rule where to forward traffic and i'm testing against my local machine and not a remote how is that a problem? if i'll be hitting remote machine then i dont really need a redirect -- http://alexus.org/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] iptables
.223 has port 80 open and it accepts connection when i'm connecting to .221 and that suppose to foward it to .223 then it doesn't work On Fri, Sep 17, 2010 at 12:38 PM, Robert Spangler wrote: > On Thursday 16 September 2010 16:03, alexus wrote: > >> I'm trying to do some simple tcp port forwarding > > The first thing you need to do is drop the RH-firewall BS and create a new > firewall rule set setup for your needs. If you don't know how to setup a > firewall then I would suggest you get one of those GUI programs that can do > this for you. > >> [r...@wcmisdlin02 ~]# curl --verbose http://10.52.208.221:80 >> * About to connect() to 10.52.208.221 port 80 >> * Trying 10.52.208.221... Connection refused >> * couldn't connect to host >> * Closing connection #0 >> curl: (7) couldn't connect to host >> [r...@wcmisdlin02 ~]# > > Looks like this host doesn't accept port 80 connections. > > > -- > > Regards > Robert > > Linux > The adventure of a life time. > > Linux User #296285 > Get Counted > http://counter.li.org/ > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > -- http://alexus.org/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Cannot print on Centos 6.7 [***NOT*** SOLVED]
perhaps you might want to include more information other then nothing... On Mon, Aug 24, 2015 at 11:34 AM, Gilbert Sebenste wrote: > On Fri, 21 Aug 2015, Gilbert Sebenste wrote: > >> On Fri, 21 Aug 2015, Kay Schenk wrote: >> >> Have you tried different printer drivers other than the one that's >> "recommended"? >> >> >> I just found the problem. The firmware on the printer was from January 20, >> 2011. > > > And this morning, it printed one piece of a document, and then crashed, just > like before. > > Sigh. Back to square one. > > Gilbert > > *** > Gilbert Sebenste > (My opinions only!) ** > *** > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos -- http://alexus.org/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
