similar to: How to list openvpn clients?

I use dyndns's (free) service to access a remote machine with a dynamic IP address. The machine is running under CentOS-6.0. I can ssh into the address given me by dyndns (*.homelinux.com), but when I do this I get the warning "reverse mapping checking getaddrinfo for" * "failed - POSSIBLE BREAK-IN ATTEMPT!" This doesn't really matter, as I normally use OpenVPN for

I'm having problems communicating with a remote server, with openvpn. I can link with ssh ok, but the link stalls when viewing any but the smallest texts. I tried reducing the tun0 MTU, though only from 1500 to 1400, but this seemed to have no effect. Before trying a larger reduction, I'd like to clarify two points. Firstly, is it necessary to re-boot the remote machine for the change in

I noticed that when I went over to CentOS-5.4 on my server (and re-booted), my openvpn connections failed for a couple of hours, and then came back. Has anyone noticed this? What puzzled me was that the tun0 interface was present on all machines (according to ifconfig) but the connections seemed to be lost. -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090,

Perhaps someone with a sharper brain than I can solve this little mystery. I've Googled until I'm blue in the face, read all TFM's I can find, and tried several iptables rule combinations but just can't get the following to work. Here's my challenge: I have a CentOS-5.3 "main" server with a static public IP address running Apache, OpenVPN, and a bunch of other

I'm getting repeated email (KMail) error messages about one apparently over-large post: -------------------------- Received: from helen.gayleard.com (localhost.localdomain [127.0.0.1]) by helen.gayleard.com (Postfix) with ESMTP id E4500294A0 for <tim at helen.gayleard.com>; Sat, 24 Jan 2015 14:00:05 +0000 (GMT) Received: (from tim at localhost) by helen.gayleard.com

Does anyone know if the program stunbdc, which prints one's IP address, is available in CentOS-5? It comes with the libnice package in Fedora-11. ------------------------------ [tim at rose ~]$ stunbdc -4 stun.ekiga.net Server address: 75.101.138.128 port 3478 STUN transaction started (timeout 600ms). STUN unknown: 0 mandatory attribute(s)! Received 88-bytes STUN message No

Has the CentOS logo disappeared from CentOS-7? I thought the logo in CentOS-6 was very pleasant. Also I liked the way in which one increasing circle inside another showed how the boot was progressing. The dots going round and round in Microsoft fashion in CentOS-7 is a retrograde step, I think. One always has the fear it might continue forever. -- Timothy Murphy gayleard /at/ eircom.net School

Mike - st257 wrote: > On Wed, Jun 3, 2015 at 6:11 AM, Timothy Murphy > <gayleard at eircom.net> wrote: > >> Has the CentOS logo disappeared from CentOS-7? > > You are referring to Plymouth splash screen while booting. > >> I thought the logo in CentOS-6 was very pleasant. Probably. The fact remains that booting was attractive, and now it isn't. --

I'm running httpd-2.4.6-31.el7.centos.1.x86_64 under CentOS-7 (kernel 3.10.0-229.14.1.el7.x86_64). I cannot get the httpd userdir facility working; when I try to access localhost/Menloe I get the message "You don't have permission to access /Menloe on this server." I see in /var/log/httpd/error_log "Symbolic link not allowed or link target not accessible:

My CentOS-7 home server has a static IP address. Is there a simple way of organizing the hpptd server so that it is accessible through this address at a remote host, but is accessed at its 192.168 address by a laptop on the WiFi LAN? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin

Anyone got a recommendation for a cheap (but good) colour laser printer that runs under CentOS-5.5 ? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

My HP MicroServer crashes with a kernel panic when booted into kernel-3.10.0-327.3.1.el7.x86_64, but runs perfectly under kernel-3.10.0-229.20.1.el7.x86_64 . I've been trying to save the panic message with kdump, but am not sure how one can configure kdump to do this, if indeed that is possible. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin

Tru Huynh wrote: > On Fri, Jan 01, 2016 at 11:53:51PM +0100, Timothy Murphy wrote: >> My HP MicroServer crashes with a kernel panic >> when booted into kernel-3.10.0-327.3.1.el7.x86_64, >> but runs perfectly under kernel-3.10.0-229.20.1.el7.x86_64 . > AMD Turion64 cpu? > Could be related to: > https://bugs.centos.org/view.php?id=9860 > uptream at

I have a 1.5TB Western Digital hard disk (WD15EADS-00R6B0) on my CentOS-5.7 server, which has become incredibly slow for some operations, eg rsync, BackupPC archive, e2fsck, although it seems to work fine for ordinary file operations, and "smartctl -a /dev/sdb" does not report any errors. For example, running "e2fsck -p /dev/sdb5" on a 250GB partition on this disk took over 24

I bought a very cheap server yesterday - an HP ProLiant micro server for 160 euro (280 euro with 120 cashback, for some reason). But I was surprised when I opened the box to find it didn't come with keyboard or mouse, and doesn't have the old keyboard/mouse sockets, but requires USB versions. Is that the norm nowadays? Is it possible to convert the old keyboard/mouse plugs? Also there is

What is the advantage, if any, of running one's own DNS server? Surely the link between domain name and IP address must already have been established? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin

If I boot into CentOS on my home server from a Live CD or USB stick and go to Troubleshoot, it lists OS's it finds on the machine. How does it find these OS's? Presumably it looks through all the partitions on all the hard disks for something that looks like an OS? But how exactly does it identify an OS? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College,

I have a CentOS-5.6 remote server in a house in Italy, where there are occasional thunder-storms. There was one yesterday, when the electricity went off 3 times, for a second or so on each occasion. My server, an HP MicroServer, came back (re-booted) on 2 of the 3 occasions, but not on the third. I assume that the problem arises because the machine does not close down properly. (Although it is

I'm running postfix + dovecot on my CentOS-7 home server. When I send myself a message I get this error message in /var/log/maillog: Aug 9 12:59:57 alfred postfix/lmtp[31336]: B0D02220748: to=<tim at localhost.gayleard.eu>, orig_to=<tim at localhost>, relay=alfred.gayleard.eu[private/dovecot-lmtp], delay=475, delays=474/0.03/0.02/0.09, dsn=4.3.0, status=deferred

When I re-booted my HP MicroServer into CentOS-7.2 I was given a text console. When I run "startx" I get the response on screen [edited]: ===================== [tim at alfred ~]$ startx xauth: file /home/tim/.serverauth.21307 does not exist X.Org X Server 1.17.2 Release Date: 2015-06-16 X Protocol Version 11, Revision 0 Build Operating System: 2.6.32-220.17.1.el6.x86_64 ... Build ID: