Networking :: CentOS 5.5 Box Unable To Access Live Web Service On Interwebs

Oct 27, 2010

From my office and home, I can access a web service, no problem. However, from my server at the data center, I cannot. Could this be a DNS issue? I've tried with iptables enabled and disabled. selinux is disabled. This server has multiple network interfaces, one public and two private. The public has a WAN IP address (1.1.1.1), the private is 10.1.10.2 and the other private is connected via crossover cable to another server 192.168.100.1. I think route -n tells me the WAN interface is used to access the internet, as its gateway is my ISP's upstream gateway. CentOS 5.5.

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Ubuntu Networking :: Connected To Network Via Live Cd (10.10) - Unable To Access Internet

Apr 26, 2011

can't access internet. The up and down icon appears by the network connection (upper right hand corner). When I review connection properties, I see that the computer has a valid address, subnet, gatway, dns, etc... But it still can't connect to the internet. I can't ping external addresses either. But I can access internal addresses (local router).

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Ubuntu Networking :: Interwebs - Can't Connect To The Internet

Feb 6, 2010

I have been on snow leopard and widnows 7 all my life. I just installed ubuntu on my other computer and I can't connect to the internet. Someone said that this little logo should be on the screen, but it is not. That picture of the two screens is absent on my screen. I need to connect to the internet. how to connect to my wireless network with or without the little image on the screen.

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CentOS 5 Networking :: Unable To Access Internet?

Jul 4, 2010

On my Centos 5 box my internet won't work. I am unable to get update and I can't download any native programs. But I have Samba running and I am able to access all my files for my other computers.

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CentOS 5 Networking :: Unable To Access Company Vpn?

Mar 8, 2011

I am trying to access my company VPN using my Centos 5.5 laptop. I have the vpn client certificate issued by my company's IT dept. I am able to access the webmail using the same certificate which I installed in firefox. But I would like to know how to use this certificate to sign in to the VPN. Some of my colleagues use the Cisco VPN client v5.0.? software and the vpn client certificate to login. It works fine. But I would like to do the same with Centos.I tried connecting using vpnc. I converted the pcf file to conf using pcf2conf. Converted the certificate to .pem file. I replaced the /etc/vpnc/default.conf file with the pcf2conf converted file. Following is the converted conf file:

IPSec gateway example-vpn.companyname.com
IPSec ID <groupid>
IPSec secret <groupsecret>

[code]....

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CentOS 5 Networking :: Unable To Get Internet Access To 5 Server

Jan 17, 2009

I've installed centos 5 on an old computer with success and it works great.I can access the web server hosted on the centos server from any computer on the wireless and wired local network. I can also use ssh (putty) and nx client from any computer on the local network (wired and wireless) to access the centos server.On the wireless router I've configured a port forwarding to the wireless network interface on the centos server. I can access the centos server from the outside (internet) through this port forwarding both through http and ssh or nx client.MY problem is that I can't access the centos server from the internet through the wired network interface. Any attempt to view a web page or login with ssh or the nx client will timeout.

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General :: Unable To Access From Windows Pc Shows Network Path Not Found Any Other Service To Start?

Dec 11, 2010

i format and reinstall centos after that i create one sambha share and valid users restart smb service but i am unable to access it from windows pc shows network path not found any other service need to start

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CentOS 5 Networking :: Unable To Get Update Or Download Any Native Programs. But Able To Access File From Samba?

Jul 4, 2010

Unable to get update or download any native programs. But able to access file from Samba

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General :: Unable To Start Network Service On My Centos Box

Nov 28, 2010

I am unable start network service on my centos box. /etc/init.d/network start device eth0 does not seem to be present, delaying initialization lspci | grep Ethernet

Doesn't show any results. It seems os doesn't identify my NIC. I am using compaq presario model pc

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Software :: Unable To Access Hdd Direct Or From Live CD

Jun 8, 2010

I've got an Hitachi Deskstar 164GB IDE drive which I've somehow managed to upset while attempting to swap distros. I'm guessing its lost the MBR as I can't get a PC to see it except in the BIOS. The BIOS tells me that the primary master has 164GB, Cylinders 65535, Head 16, Precomp 0, Landing zone 65534 and Sector 255. (my understanding of that info is very limited). The PC won't boot direct from the hdd and a live Knoppix disc can't see it. Trying fdisk -l produces no list. (Naturally, I can't install another distro on it either).

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General :: Centos 5.3 - Unable To Start Sshd Service - Shows Error

Oct 5, 2010

In centos 5.3 i am unable to start sshd service shows error starting sshd :/etc/init.d/sshd:line102"7182 illegal instruction $sshd$ option

Same error while starting the httpd service.

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Ubuntu :: Unable To Boot Ubuntu / Unable To Access Root Drive From Live CD

Jul 16, 2010

Im having a serious issue with booting ubuntu 10.04, the issue being it wont boot up at all, after working so well for so long (i suspect some recent dodgy system updates are responsible) so I decided to just reinstall ubuntu from scratch again but wanted to retrieve some important files from my root device. So I am running the live desktop and I can see my previous filesystems under places but cannot mount or open my original root device where the files I want to recover are located, I receive this error msg:"Unable to mount 77 GB Filesystem.

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OpenSUSE Install :: Unable To Access Internet Installing From Live USB

Nov 6, 2010

Installing from Live USB: Installing from USB on my desktop (used this method for laptop install) goes without a hitch. EXCEPT, I notice there is no support for my wireless card chipset (Atheros 7413, used /bin/lspci to find). I download the drivers for Linux, but I need Make to build the drivers...ok. I download the Make files from my laptop, make coffee, slap the makefiles onto a flash drive and run the configure file on my desktop version of SUSE. Whoops, need a c compiler (odd that openSUSE did not come with gcc? bit confused on that). If you can't tell by now, I've been using linux for less than a month so I am what you would call a noob? After the lack of c compiler, I drove to my office to snag some DVDs to download the DVD iso image, hoping it would have some form of c compiler/make packaged, since the description does say the DVD has more software (can't find any prebuilt versions of either...?)

Installing from DVD: This was my next step. I wrote the iso image to a DVD and proceeded to boot from DVD. The installer fails at the system analysis, saying it cannot "create a repository". writing the iso to a second DVD produces the same result. Googling has not yielded a solution. tl;dr can't use openSUSE on my desktop because my wireless chipset is not suported by SUSE. I need Make to build the drivers, but I need a c compiler to compile Make, and I need the internet to get both for my machine.

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Ubuntu Networking :: KDE Wallet Service Keeps Asking For Password To Allow Wireless Access?

Aug 19, 2010

At boot up, the KDE Wallet Service keeps asking for my password to allow wireless access! How can I stop this? I want wireless access to be allowed permanently.

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Networking :: DHCPD Service Keeps Failing In CentOS 5.4

Jan 21, 2010

I'm having some trouble with getting my DHCP service up and running on my server. Below is my /etc/dhcpd.conf file, which I believe is the right file necessary to get this service up and running correctly. When I do service dhcpd restart it just show in red letter [Failed] next to it.

Code:
ddns-update-style interim;
ignore client-updates;
subnet 10.2.3.1 netmask 255.0.0.0 {
# --- default gateway
#option routers 10.2.1.1;
#option subnet-mask255.0.0.0;

#option nis-domain"domain.org";
#option domain-name"domain.org";
#option domain-name-servers10.7.8.1;

option time-offset-18000;# Eastern Standard Time
#option ntp-servers192.168.1.1;
#option netbios-name-servers192.168.1.1;
# --- Selects point-to-point node (default is hybrid). Don't change this unless
# -- you understand Netbios very well
#option netbios-node-type 2;

range dynamic-bootp 10.2.3.2 10.2.3.254;
default-lease-time 21600;
max-lease-time 43200;

# we want the nameserver to appear at a fixed address
#host ns {
#next-server marvin.redhat.com;
#hardware ethernet 12:34:56:78:AB:CD;
#fixed-address 207.175.42.254; } }

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CentOS 5 Networking :: Can't Install Httpd Service

Mar 11, 2009

Well, i can not install httpd service, when i execute yum -y install httpd i get this message

Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=5&arch=i386&repo=os error was
[Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

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CentOS 5 Networking :: IPTables Service Failed To Start

May 9, 2009

I have CentOS 5.2 just installed and massively updated with yum -update command. Than I tried to configure firewall. After changes via system_config_securitylevel_tui (open ssh, http, ftp, and 3306:TCP ports) iptables service can't start with message

> /sbin/service iptables start
Flushing firewall rules: [OK]
Setting chains to policy ACCEPT: mangle filter nat [OK]
Unloading iptables modules: [OK]
Applying iptables firewall rules: iptables-restore v1.3.5: Couldn't load match `TCP':/lib64/iptables/libipt_TCP.so: cannot open shared object file: No such file or directory
Error occurred at line: 18
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
[FAILED]

I erased the iptables service and installed it again with yum. How can I make this service work?

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Networking :: Unable To See Shares On Samba Server - No Authentication Access Desired (open Access)

Jun 12, 2009

I've been running a Samba server under RedHat 8 for five years without a hiccup. I want to cut over to a F10 box but cannot get shares accessible. smbclient attempts fail over NT password error. SELinux is disabled. Server is visible on the network. Users require no password access to shared data.

smb.conf follows:

# Samba config file created using SWAT
# from UNKNOWN (>)
# Date: 2009/06/12 14:15:15

[code]....

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Ubuntu Networking :: The Phone Can Access The Internet Through The Computer Unable To Get Access To Https Sites, Like Webmails

Dec 31, 2010

I managed to configure my W890i phone to get access to internet through an ubuntu-based computer. It's very easy to use the phone to give internet access to the computer, but the opposite is quite more tricky. For that I've done the following

----On the phone---

-Set the USB network option to "through computer", so that the phone uses the computer's internet connection and not the opposite.

-Decide and set "Shared Network" parameters: user, pasword and workgroup.

-In "conectivity-> internet connection" set "allow local network" to "yes"

----On Ubuntu 10.04---

-Install samba, samba-client, smbfs, smbclient, firestarter and dhcp3-server

-Configure Samba (System-> Administration-> Shared folders): same workgroup as in the phone, add new user (the phone), passwd this new user. In my case the user was called "w890i" and the password given was the same.

-Once the phone is connected to the computer through USB (then select "phone mode"), a new connection appears in NetworkManager: usb0.The aim is to create a shared network that gives internet access to this device. Edit the IPv4 parameters of this new connection, set them to Manual and give an IP adress (192.168.0.1) and a subnet mask (255.255.255.0); the rest of the fields are left empty.Connect this network.

-Set firestarter to use dhcp3: sudo ln -sf /etc/init.d/dhcp3-server /etc/init.d/dhcpd

-Launch firestarter and follow the wizard. Set "allow internet shared connection", choose the device for the primary internet access, and then the device for the shared network (usb0). Then change the settings for firestarter: activate DHCP for local network, set IP to the one we gave before (192.168.0.1).

-Open dhcp3-server config file sudo gedit /etc/default/dhcp3-server And set INTERFACES="usb0"

-Set the policies of firestarter: in incoming connections, allow connections from the IP adress given to the phone (192.168.0.1). Then add rules for the ports that need to be open for this connection. I opened HTTP, HTTPS, SMB, SMTP, POP3, IMAP, IMAPS, DHCP for all the connections in the local network.

-Apply policies and start the firewall.

------------

After all this, the phone can access the internet through the computer. Two problems appeared:

1. I couldn't get access to https sites, like webmails. The phone gave a "communication error". But then I tried with Opera instead of the browser built in the phone's firmware, and I could finally get to https sites.

2. I couldn't retrieve mail, neither POP nor IMAP nor IMAPS. I thought it was a firmware problem again, and I tried out several mobile phone email clients written in java, but none of them worked.

So this is at the moment the problem. If I connect from the phone to the internet directly through 3G, the email clients work for all my accounts. I don't think it's a firewall problem, because the ports are opened for this connection

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CentOS 5 Networking :: IP Forwarding Disables When Rebooting Network Service / Stop It To Do So?

Nov 30, 2009

I have recently installed Centos 5.4 on a server with 3 network cards. I am trying to enable IP forwarding which has been successful by executing the following command:

echo 1 > /proc/sys/net/ipv4/ip_forward

I tried to make this permanent by adding net.ipv4.conf.default.forwarding=1 to the /etc/sysctl.conf file.

When I restart the network service I get the following code...

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CentOS 5 :: Unable To Access Logs?

Dec 8, 2009

I set up freenx server and set up a client on same machine and now when I go to my logs it crashs and bugzilla save before it can crash. I go to send info and the page says bugzilla wont work and gives a 999 code need newer gnome??

**this is when I go to the logs page

Distribution: CentOS release 5.4 (Final)
Gnome Release: 2.16.0 2007-02-18 (CentOS)
BugBuddy Version: 2.16.0

[Code]....

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CentOS 5 :: Unable To Access Usr / Local Directory?

Jul 6, 2011

I am buying a server 2 day ago and installed CentOS 5 (64 bit) . But i have a problem .My server FTP have folders :
_________________________
maildir
admin_backups
domains
imap
public_html
user_backups
__________________________

I cannot access usr / local directory.usr / local directory, how can I access? usr / local does not appear FTP.And i get an error : libmysqlclient.so.15

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CentOS 5 :: Unable To Gain Access To Server Locally?

Jun 30, 2009

We have a server were we no longer seem to be able to gain access, neither locally or remotely.When we try to connect via SSH we get a "Connection Refused". We have checked that it's not our standard firewall blocking the request, so it can either be the local firewall (which we disabled when installing) or that the process isn't running.However, when we try to login locally on the machine (as root) all we get is "Login failed". We've tried restarting the machine in single user mode to change the root password, and while we can do this succesfully, it still doesn't give us access when rebooting the machine afterwards.No other users (besides the standard users created when installing) are available on the server, so we can't say if this is a problem with the root account, or with logging on in general.

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CentOS 5 :: Unable To Access Resume Device / Enable It?

Mar 7, 2011

I'm running CentOS 5.5 with a hardware Areca controller (Raid 10). I initially installed a machine and rsynced the file system to a third machine; I'm then pulling in the file system to new machines and updating grub with a script to make it bootable.

I've done this before with other machines (no raid sets) but with these machines I'm running into errors code...

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CentOS 5 Server :: Unable To Access Resume Device?

Sep 23, 2011

I face a problem with my server after i rebooted it i got a message on start up tell me that " Unable to access resume device (label=swap-sdb3) " and the system doesn't startup

the error message exactly is

Unable to access resume device (lable=swap-sdb3)
Creating root device.
Mounting root filesystem.
[ 3.305354] EXT-fs (md1) : error : unable to read superplock
mount: error mounting /dev/root on sysroot as ext3 : invalid argument

[Code]....

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CentOS 5 :: Unable To Get I/O Port Access The Iopl(3) Call Failed?

May 28, 2010

I am running a VPS of CentOS. clock command doesn't work.[174-37-247-102.lx-vs.net ~]# clock hwclock is unable to get I/O port access: the iopl(3) call failed. How to solve the problem? I have tried "timeconfig" and set to New York and System Clock uses UTC and restart the server but it was not useful.

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CentOS 5 Hardware :: Unable To Access External Hard Disk?

May 31, 2010

This is Mushtaq here. I am using CentOS 5.3. Everything works fine regarding Hardware Support except of External Hard Disk. I have a HDD Western Digital 80 GB in USB converted case. Its working fine under WinOS, Fedora 10 / 11 / 12 + & RedHat Enterprise Linux. But CentOS is unable to access it even it does not detect it (fdisk -l command is used to verify the connected disks). Can any one please help me in this regard, I am fed-up of this situation.

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CentOS 5 Networking :: Internet Access Slow In CentOS 5.3?

Sep 9, 2009

I have an MSI K9A2 Platinum mobo, which has a 10/100/1000 Fast Ethernet Realtek 8111B built-in, a D-Link DIR-655 Router and a DSL modem. Compared to Windows Visya and other Linux distros ( Fedora 11, Suse 11.1, Mandriva 2009.1 ) access to the internet is much slower. It seems there is a noticeable delay when running CentOS 5.3. before internet access kicks in each time I am surfing the web or updating my system.

Is there any way I can speed things up, or determine why CentOS 5.3 seems much slower ?

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Server :: Unable To Access Samba Share On CentOS 5.4 From Windows XP Or Vista

Jan 23, 2010

I can't be the first one with this problem. What am I missing?

I have setup Samba servers in the past, just none under SELinux. The last one I configured was a couple years ago, so I wouldn't doubt I'm a bit rusty.


---- Environment summary:
Clean server install of CentOS 5.4 includes SELinux
- lets call this 'server'
- updated samba to 3.0.33-3.15.el5_4.1

Client1 - Windows XP sp4 - WINS configuration uses 'server' noted above
Client2 - Windows Vista - WINS configuration uses 'server' noted above

---- What works / what doesn't ------
Clients can see the server (XP and vista) in network neighborhood.
The following does not work from windows (xp or vista)
net view
net view \server
net view \server-ip
net view \servershare

This does work on the server
smbclient -L \server
smbclient -L \server --user validuser
smbclient -L \client1 --user validuser


---- What I have configured and tried (config/output below) --------
firewall ports for samba are open
SELinux enforcing or permissive
file context is set on share
samba booleans are set

***firewall
-A RH-Firewall-1-INPUT -s 192.168.0.0/24 -m state --state NEW -m tcp -p tcp --dport 445 -j ACCEPT
-A RH-Firewall-1-INPUT -s 192.168.0.0/24 -m state --state NEW -m udp -p udp --dport 137 -j ACCEPT
-A RH-Firewall-1-INPUT -s 192.168.0.0/24 -m state --state NEW -m udp -p udp --dport 138 -j ACCEPT
-A RH-Firewall-1-INPUT -s 192.168.0.0/24 -m state --state NEW -m tcp -p udp --dport 139 -j ACCEPT

***SELinux mode/booleans
# sestatus
SELinux status: enabled
SELinuxfs mount: /selinux
Current mode: permissive
Mode from config file: enforcing
Policy version: 21
Policy from config file: targeted

# getsebool -a | grep smb
allow_smbd_anon_write --> off
smbd_disable_trans --> on

# getsebool -a | grep samba
samba_domain_controller --> on
samba_enable_home_dirs --> on
samba_export_all_ro --> off
samba_export_all_rw --> off
samba_share_fusefs --> off
samba_share_nfs --> off
use_samba_home_dirs --> on
virt_use_samba --> off

***filesystem
# semanage fcontext -a -t samba_share_t �/share/photos(/.*)?�
# restorecon -R -v /share/photos

***Disks
]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda3 9920624 2070872 7337684 23% /
/dev/sda1 101086 19146 76721 20% /boot
tmpfs 1846656 0 1846656 0% /dev/shm
/dev/mapper/VolGroup00-xen
100791728 202540 95469188 1% /xen
/dev/mapper/VolGroup00-photo00
251981556 191716 238989840 1% /share/photos
/dev/mapper/VolGroup00-dmsdoc00
100791728 192256 95479472 1% /share/alfresco
none 1846656 104 1846552 1% /var/lib/xenstored



***smb.conf
[global]
workgroup = workgroup
netbios name = server
security = user
name resolve order = wins hosts lmhosts bcast
encrypt passwords = yes
hosts allow = 192.168.0.
hosts deny = 192.168.122.
interfaces = eth0
passdb backend = tdbsam
oslevel = 222
local master = yes
domain master = yes
preferred master = yes
cups options = raw
username map = /etc/samba/smbusers
wins support = yes
log level = 4
guest ok = yes

[photo]
comment = Photos
path = /share/photos
read only = yes
guest ok = yes

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CentOS 5 Networking :: Unable To Port 8080 On CentOS VPS Server

May 30, 2011

i am not able to port 8080 on my CentOS VPS server.I have followed all the instuctions as mentioned on iptables wiki page.Also I am able to telnet my ip address and port number, But can not access from browser.

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