CentOS 5 Server :: Reverse Name Resolution Zone File Didn't Create By Default
Oct 19, 2010
I install a Bind 9 with chroot in Centos 5, but the issue is the Reverse Name Resolution Zone File didn't create by default like other zone files, so i look into /var/named directory i don't find the reverse name resolution zone file even if i add this zone on named.conf
zone "1.168.192.in-addr.arpa" IN {
type master;
file "1.168.192.testsip.com.zone";
allow-update { key "rndckey"; };
notify yes;
};
I just ordered a new unmanagd VPS I have already Apache, PHP and Mysql the only problem I have now is how to create a A,NS and MX record in CentOS. I dont know where the DNS zone file is in CentoS
I've run into a strange issue with a DHCP/DDNS setup whereby when the DHCP server asks the DNS server to add a new host, the forward map is added correctly but the reverse map has the subdomain added twice (e.g. 192.168.25.192.168.25.250)I'm running ISC DHCPd version 3.0.1 and BIND version 9.2.3 on SuSE 9.2 - 32bit.Here is my dhcpd.conf file:
# dhcpd.conf authoritative; include "/etc/named.keys";
I have installed a centos 5.4 server with Bind services running on the 2 servers.but getiing error "the working directory is not writable". while restarting the named services.
Running a server using CentOS 5.5 (yum updated, x86_64), found that when using /usr/sbin/useradd to create system user, the quota for the user will default set to 5M soft and 10M hard (on /var/spool/mail partition). As remember the default setting for user quota should be both zero when create a new user.
man useradd and quota related command and no help, had any idea how to change/set the default quota when create user.
I'm at a loss to why my reverse lookup zone doesn't work for me.I've got two views. One internal and one external. My domain is isp2.datornatverk.se. Public IP: 130.240.133.81.
I've set it up so that the internal subnets gets the domains resolved to the internal IP-addresses. When querying from external addresses I will get public IP.My named.conf.local file:
I need to create a server for a database that has a .db file that is over 800Gb. now my first disk is 50Gb and i do the standard
100m ext2 boot 2000m swap * / ext3
now I have a second 1.2T that i want to be /opt is there a way to set up 4kib block size in ext3 in the os install? or should I do it after the install? Is this block size even big enough?
I am no expert when it comes to BIND. I seem to be able to resolve NS and A and TXT records for my domain, but I cannot get the MX records to come out. Does anyone have an idea what might be wrong with my BIND zone file? I wonder if it might have something to do with the fact that my IP is currently on a policy Block List?
I want to compare zone file counting and same name, not records etc of master and slave dns server so that i sure both server contains same copy of the files at a time. Any utility to compare such files in linux?
I was working on a shell script to change the permissions of large directories and subdirectories because of an exploit discovered in the programs that run in those said directories that allow a client to upload and download files to the server. Loan behold I accidentally added a space and had something along the lines of "chmod -R 770 ." run on / logged in as root.
Yes, it was an incredibly noob move on my part, but nothing ventured nothing gained. I am surprisingly calm about this. I tried sliding in my CentOS installation disk and "Upgrading" CentOS but that only made it worse, beforehand I made everything owned by root so I could at least log into GNOME. This does not work for obvious reasons, namely having to change the permissions back for every user and every group, which far beyond a possibility.
I've been struggling with this for a couple of days now. I'm trying to setup a reverse proxy with SSL. The config works when it's not using SSL, but as soon as I setup the virtualhost for 443, I get a ERR_CONNECTION_REFUSED in my browser.
The setup is that it's a CentOS 5.6 running Apache 2.2.3. I was configuring it via this guide: [URL]
This server is acting as a reverse proxy for a Windows server running Apache. Currently, I'm just trying to get the manager page from the Windows server to go through the reverse proxy. Here's the virtual host section of my httpd.conf file on the reverse proxy:
<VirtualHost *:443> ServerName aspwebview.vtinfo.com SSLEngine On SSLCertificateFile /etc/httpd/ssl/star_vtinfo.com.crt
[Code]....
Thoughts? Is there anything I have to do on the Windows server (maybe in the connector section of server.xml)?
I chose -Server-, if this is more appropriate in -Networking-, just let me know. Basically, I need to be able to merge responses stored in a zone file with responses from an "upstream" authoritative server. I'm in the sad position of needing to "intercept" requests to *part* of a domain (but not restricted to a sub-domain!) and return results for *some* hosts that use an internally routed address, and results for the rest using the public internet addresses. Unfortunately, it's not my domain, so I can't just use views (although I suspect they could end up having some part to play in this, at least potentially)... but instead I have to actually send requests recursing to the other site's external DNS for any hosts my server doesn't have records for in the zone file.
Some background on the situation: I work at a local government, which has a private link / VPN connection to a state government entity, and needs to use internal addresses for some of the state servers, which then get routed over an "internal" network link. But the state uses the same domain name internally and externally, just presenting views to internal clients vs. external clients. -- However, we are only being allowed access to certain of their servers through the internal link, which means that for any other servers that we don't have internal/private access for, we have to visit the public addresses just like anyone else on the internet... So, I can't just send all requests to their internal DNS and get responses, because we'd get IPs for some servers (e.g. their main web site) that we wouldn't then be able to reach using the internal network link.
For Example: Say I have a client machine, "client1", on my network ("my.net"), which uses "mydns1.my.net" for name resolution ... and which needs to access 2 servers on the state network, "private.st.us" and "public.st.us" -- so named based on how "my.net" needs to access them.
The external state DNS server/view ("ext-dns.st.us") responds to requests with something like: private.st.us -- 1.2.3.456 public.st.us -- 1.2.3.457 (Those are just crap addresses, obviously.
The internal state DNS server/view ("int-dns.st.us") responds to requests with something like: private.st.us -- 10.0.0.8 public.st.us -- 10.0.0.10 This works on their network because their own clients have access to all such IPs.
But for us, they only allow traffic flowing between "my.net" and their internal network to reach the 10.0.0.8 address, blocking all other address destinations. So, when "client1.my.net" asks "mydns1.my.net" for the address of "public.st.us", I need "mydns1" to recurse out to "ext-dns.st.us" to get an answer (1.2.3.457) and then return that IP to "client1" -- because "my.net" is blocked from accessing the server's 10.0.0.10 address. But, when client1 asks mydns1 for "private.st.us" I need to pull the IP (10.0.0.8) from a local zone file instead of asking either of the state DNS servers -- or optionally forward the request to "int-dns.st.us" I suppose -- because the state blocks access to certain services (which we need and are the whole cause of this problem!) via the public (1.2.3.456) address.
I was able to do on Debian and Ubuntu Servers X applications running on remote servers where I was able to login via SSH. Tried the same with CentOS did not worked. in /etc/ssh/sshd_config
I've a database-server (IBM x3650 M2) with about 3 TB Data on SAN (Hitachi) with lvm top of softraid (RAID1) based on multipath (2 SAN-boxes in different buildings). After booting the server, multipath starts, but no md starts the mirror. The same configuration with SLES 10 works.
I'm burning my lashes out on this and still can't make it happen! I need a pro support.
Problem: I want to add reverse DNS on my server. I allready asked my ISP to add my server ip address (213.13.112.20) and the name of the server: ithkul.medianet.pt
I need the reverse because in these days most of mail servers need to reverse addresses, otherwise you may be considered a mail spammer. I'm using BINd 9.3.6 here is the NAMED.CONF
acl local { 213.13.112.16/28; }; acl recursionyes { 213.13.112.16/28; };
I'm trying to create new RAM image file to get my server load raid1 module upon start, I was following redhat documentation & it suggested to use the following command mkinited --with=raid1 inited-raid1-$(uname -r).img $(uname -r) However after running this command I'm getting this message No Kernel available for 'inited-2.6.18-128.el5"
Files saved on our ubuntu server via samba server are all being created/saved as read only (-rwxr--r--). The users are MAC Users who are connecting via finder.I have taken 2 steps:First I added the lines "umask 0000" to the .bashrc files in the users' home directories.Second, I have modified the /etc/samba/smb.conf file such that I set "create mask = 0000" and also "directory mask = 0000" but the files are still being created as "-rwxr--r--".
I have a centos 5.5 server, without a monitor connected to it.Sometime i need to connect to it with VNC, but maximum resolution is 800x600.How can i increase it at least 1024x748 ??I tried in system-config-display changing the monitor to a generic CRT 1024x768, and rebooted.But only allowed resolutions are 800x600 and 640x480.
I did this whole process, [URL] It worked, but I have missing pixels. I thought it didn't look as sharp as it should, but when I went to facebook which uses small fonts, I could see part of the letters missing. (@ 100%)... 1440x900_60.00...
My question is about DNS use of the $TTL directive. I realize the $TTL directive stands for TimeToLive, my question is why would you specify different TTLs in the zone file? I have a zone file with
$TTL 300 machine machine machine TTL 3600
[code]....
I'm not sure why you just wouldn't specify the same TTL for all systems or at least not have all the 300's grouped together and all 3600s grouped together. The file I'm looking at has about 12 different groups of 300 and 3600 TTLs.
The top row of keys on my notebook are currently assigned to various media functions (brightness, volume, play, stop, etc.) These keys are rarely used, and it would be better if they were assigned to the function keys (f1,f2,f3,...) by default, rather then using the fn key to access them. Locking the fn key down is not an option. What can I do?
I have a project that I'm working on now that is using Ubuntu 8.04LTS to create a reverse SSH proxy for a telnet process. We have the box logging in with RSA keys so that it can automatically connect to the SSH host on our end. We are using autossh to keep the connection up and running.
We have rolled out 3 of these and they are working very well. We ghosted the original, changed the hostname, changed the IP info, and regenerated the SSH keys. Now I need to clone 35 more. I want to try to do this as efficiently as possible and can script the changes in the hostname, IP, ect.
Can I batch create RSA keypairs on my workstation and then copy them over as a part of the batch? My current other option is to login to each of them and generate the pair. I would like to just install the drive and ship it and not even have to boot it up.
I installed the latest CentOS 5.5 in my PC. I added some public domain projects on it. Now how can I make another boot-able CentOS iso file with all the new projects I just added? In the other words, I try to create a boot-able CD with the CentOS and all the projects on it.
