How can I do an inverse ARP lookup in Windows and/or Linux? Say that I have the MAC address of wireless access point which is up and running in the network, but I forgot it's IP address?
While establishing mirroring without witness at last step i am getting an error:
One or more of the server network addresses lacks a fully qualified domain name (FDQN). To start mirroring without using a FQDN, click "yes". To specify the FDQN, click "no". Then specify every TCP address by using the syntax for a fully qualified TCP address, and click Start mirroring again.
TCP/IP are in enabled mode in Computer management.
How to rectifity this error?
So, I am sitting in my office with four computers on the same network and internet connection.
Two of the computers can visit this particular website. Two of the computer get a message "Google Chrome could not find". I have tried FF and IE also with the same problem.
I can view the site 90% of the time on two of the working computers although the site seems slow and sometimes I also get the same errors as the other two computers.
I have flushed the DNS, reset the router, tested the site on other peoples computers with success.
Is this likely to be a site issue, an ISP issue, a hosting issue?
Any advice is greatly appreciated.
Here is the ping from the working machine:
C:\Users\Jon>ping www.balihaicruises.com
Pinging www.balihaicruises.com [208.113.173.102] with 32 bytes of data:
Reply from 208.113.173.102: bytes=32 time=331ms TTL=47
Reply from 208.113.173.102: bytes=32 time=327ms TTL=47
Reply from 208.113.173.102: bytes=32 time=326ms TTL=47
Reply from 208.113.173.102: bytes=32 time=329ms TTL=47
Ping statistics for 208.113.173.102:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 326ms, Maximum = 331ms, Average = 328ms
Traceroute:
Tracing route to www.balihaicruises.com [208.113.173.102]
over a maximum of 30 hops:
1 1 ms 17 ms 3 ms 192.168.1.1
2 42 ms 37 ms 36 ms 180.254.224.1
3 39 ms 47 ms 40 ms 180.252.1.69
4 36 ms 616 ms 57 ms 61.94.115.221
5 84 ms 76 ms 80 ms 180.240.191.98
6 73 ms 80 ms 72 ms 180.240.191.97
7 157 ms 143 ms 116 ms 180.240.190.82
8 115 ms 113 ms 120 ms ae1-123.hkg11.ip4.tinet.net [183.182.80.93]
9 331 ms 332 ms 335 ms xe-3-2-1.was14.ip4.tinet.net [89.149.184.30]
10 327 ms 330 ms 331 ms internap-gw.ip4.tinet.net [77.67.69.254]
11 437 ms 415 ms 350 ms border10.pc2-bbnet2.wdc002.pnap.net [216.52.127.73]
12 322 ms 823 ms 398 ms dreamhost-2.border10.wdc002.pnap.net [216.52.125.74]
13 328 ms 336 ms 326 ms ip-208-113-156-4.dreamhost.com [208.113.156.4]
14 326 ms 328 ms 336 ms ip-208-113-156-14.dreamhost.com [208.113.156.14]
15 327 ms 331 ms 333 ms apache2-udder.crisp.dreamhost.com [208.113.173.102]
And then for the machine that doesn't work:
C:\Users\Microsoft>ping www.balihaicruises.com
Ping request could not find host www.balihaicruises.com. Please check the name and try again.
C:\Users\Microsoft>tracert www.balihaicruises.com
Unable to resolve target system name www.balihaicruises.com.
I need to configure a network made by a simple old hub with 24-ports a server and some clients.
Both clients and server has Windows XP or later.
If all clients has the DCHP service enabled does exists a software that, installed on the server, assigns automatically to the clients an IP based on a predefined range?
Hey,
I have obtained an SSL certificate by Thawte for domain.com
Now my infrastructure changed due to heavy load
I have
mx.domain.com as SMTP relay
storage.domain.com as Mail-Storage
and domain.com pointing at Web-Server
Every server is hosted on another dedicated/virtual server with individual IP.
I do not want to put the Web-Server on the Mail-Storage for security reasons but I do want to use my SSL-Certificate for the Mail-Storage(POP3S/IMAPS). Is that possible or how do I solve that issue?
I need to start screen with some bash command to execute.
Trying screen -S test -d -m bash -c './test.php'
but have no result, screen didn't apear.
Even more, let's that i need to start something like that
vlc -I ncurses --http-reconnect http://ip/ --sout '#duplicate{dst=std{access=http{user=,pwd=},mux=ts,dst=:51001}}' --ttl=255 --loop --repeat
Hi,
Can I put a wireless router (for a laptop to talk to) which is configured to use DHCP on our work LAN ?
I just need the laptop to be able to talk to the internet. Will it automatically get the gateway information when it is assigned an IP via DHCP ?
Thanks
Scott
Using the regular Remote Desktop Client (in the desktop environment) I can connect just fine to remote servers when connected through Cisco VPN or when accessing a server behind a load balancer.
When using the Remote Desktop app in the Modern UI, I can't do either of these things. Trying to connect to a remote server that's on a private network fails with:
Can't find server, make sure the name and domain are correct and try again
And connecting to a server that's behind an RDP load balancer fails with the following error, after accepting credentials:
Because of a protocol error, this session will be disconnected. Please try connecting to the remote PC again
Is there some way to use the Remote Desktop app in these situations, or am I just out of luck?
The "homegroup" feature is useless, because it requires a password, and therefore doesn't support anonymous, no-hassle access to shares from devices such as my Sony Bravia TV and non-Windows7 machines. So I turned off homegroup and reverted to the standard shared folders protocol.
I'd like to share my Music "Library", so I can play files from my TV through the Surround Sound System, but there seems to be no option to share a library folder other than through a homegroup.
I don't want to have to individually share the folders that belong to the library, because that would defeat the purposes of the library, which is to manage which folders are included in the library while also providing an easily accessible view of them all at once.
Does anyone know how to share a Windows 7 library without that useless homegroup feature?
I'm considering my options for implementing a VOD service. Until recently my choices seemed to be either Wowza or Darwin, but now I discovered VLM, which looks really cool.
I am going to stream MPEG4 H.264 video with AAC audio. I'm probably going to use the RTSP protocol, but I'm willing to use HTTP as well (after reading this article).
Can anyone comment on his or her experiences with VLM? How does it compare to Darwin or Wowza? Is it stable and worthy of production use? Are there any limitations or performance problems?
This is similar to some other questions, but I have a specific need which is not covered in the other questions.
I have an Ubuntu server (11.10) with two NICs. One is built into the motherboard and the other is a PCI express card. I want to have my server connected to the internet via my NAT router and also have it able to wake from suspend using a Magic Packet (henceforth referred to as Wake-On-LAN, WOL). I can't do this with just one of the NICs because each has an issue - the built-in NIC will crash the system if it is placed under heavy load (typically downloading data), whilst the PCI express NIC will crash the system if it is used for WOL. I have spent some time investigating these individual problems, to no avail.
My plan is thus: use the built-in NIC solely for WOL, and use the PCI express card for all other network communication except WOL. Since I send the WOL Magic Packet to a specific MAC address, there is no danger of hitting the wrong NIC, but there is a danger of using the built-in NIC for general network access, overloading it and crashing the system.
Both NICs are wired to the same LAN with address space 192.168.0.0/24. The built-in ethernet card is set to have interface name eth1 and the PCI express card is eth0 in Ubuntu's udev persistent rules (so they stay the same upon reboot).
I have been trying to set this up with the /etc/network/interfaces file. Here is where I am currently:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.0.3
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
gateway 192.168.0.1
auto eth1
iface eth1 inet static
address 192.168.0.254
netmask 255.255.255.0
I think by not specifying a gateway for eth1, I prevent it being used for outgoing requests. I don't mind if it can be reached on 192.168.0.254 on the LAN, i.e. via SSH -- it's IP is irrelevant to WOL, which is based on MAC addresses -- I just don't want it to be used to access internet resources.
My kernel routing table (from route -n) is
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 100 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
My question is this: Is this sufficient for what I want to achieve? My research has thrown up the idea of using static routing to specify that eth1 should only be used for WOL on the local network, but I'm not sure this is necessary.
I have been monitoring the activity of the interfaces using iptraf and it seems like eth0 takes the vast majority of the packets, though I am not sure that this will be consistent based on my configuration. Given that if I mess up the configuration, my system will likely crash, it is important to me to have this set up correctly!
I'm have trouble transfering files again from my work PC, which is a linux machine to my home windows PC.
My work has changed it so I now need to SSH twice before I can access my PC.
So I need to:
ssh [email protected]
password: xxxxx
I then need to do it again.
ssh computer_name
password: xxxxx
I've tried accessing directly via my computers IP but to of no avail.
Is there a way I can use pscp or file zilla to ssh twice so I can transfer files?
Hi,
I would like to use cometd / reverse ajax capability of Jetty 7. I tried to configure it so it listen to port 80, instead of 8080.
However, according to http://jetty.mortbay.org/jetty5/faq/faq%5Fs%5F200-General%5Ft%5Fapache.html ,
Apache can be configured as a HTTP/1.1
proxy to pass selected request to the
Jetty using the HTTP/1.1 protocol.
This is simple to configure and use,
but current versions of the apache
mod_proxy do not support persistent
connections.
As far as I know, the reverse ajax in jetty is depending on continuation (I guess it is persistent connection). So how to let jetty support reverse ajax, while coexist with apache server?
Thanks.
I am getting brute forced to my email server, IMAP and POP3. I have the full package of ASL installed but it just sends me the OSSEC logs. How can I ban the IP.
I thought ASL automatically blocked these attacks after a few wrong tries. How can I do that.
I'm looking to retrieve the ServerName field located in /etc/apache2/apache2.conf. My only issue is then calling it in PHP (echo $_SERVER['SERVER_NAME'];) it gives me not the server name but the ip address.
If I pull a phpinfo(); I can the server name under the Hostname:Port field under the apache2handler, so I know it's accessible somehow.
Hi, i am publishing my website(www.muratturan.com) by using godaddy's "Total DNS Control". My configuration like this:
1-) I configured my domain to total dns control by setting nameservers to total dns control's.
2-) In total dns control panel i set A host to directly my VPS's ip address.
3-) Also i configured mx records to google apps.
Everythings looks good but i am thinking that is this technuqie has any negative effects ? Thanks
Are there any computer vendors (like Dell, Lenovo, or..) that still sell laptops with an internal serial port?
We are using several modem and other kind of box at work that have to be used (and/or programmed) with serial port (RS232, DB9, ..). We tried many usb/pcmcia serial adapter which run fine when used to load programs on the boxes but not with modems. The protocol behind the RTC connection (with modem) need timer we are not able to reach when using an adapter (maybe until we find a very good adapter), and that leads to my question..
I have a Cisco 1841 configured for VPN connections of two types:
Peer-to-peer for partners' routers (IPsec) — using different crypto isakmp key and crypto map with set peer, set transform-set, match address for every peer (same map name, different priorities). That crypto map name is added to the WAN interface.
Client access (PPTP) — using vpdn-group with accept-dialin protocol pptp.
Now, a new partner wants to connect using vpnc client. The latter needs IPSec ID (group name) and IPSec secret in addition to username and password. I guess that IPSec secret is pre-shared key that can be specified in crypto isakmp key on Cisco. But I could not find any VPN tutorials involving groups. Hence, my questions:
How to add IPSec ID (group name) and IPSec secret on Cisco router for vpnc connections? Should I add a new crypto map matching all addresses as well?
Is it possible to add this configuration without breaking the existing setup?
Thank you.
Recently one of our client machines was infected with a virus and I believe was spamming addresses in the user's contact list. Since then our server has been appearing on blacklists and it has been causing our e-mail to be blocked and returned by many clients. The virus has since been cleared, what can I do to get our server off these blacklists so that we will have more reliable e-mail service? Will I have to change my IP address?
Thanks,
Mike
(fullquote from stackoverflow.com/questions/2690788/w2k8-rc1-windows-media-servers-wms-as-proxy/2690791#2690791)
I will have one streaming-server (W2k8, unknown streaming protocol [rtsp, mss, http]) and half dozen streaming-servers as proxies to save bandwidth.
I have read the documentation and installed the modules, but I am unsure how I have to configure the proxy's according to http://technet.microsoft.com/de-de/library/ee126142(en-us,WS.10).aspx - as a proxy or reverse proxy and how I minimize the bandwidth needs between origin server and proxy's.
What is the best way to realize my setup? Any short how-tos? How can I announce all players to use the proxy? Route all rtsp/mms/http-requests through my proxy? Announce the proxy with DHCP-releases?
Thanks!
I've been wracking my brain the last few days trying to setup DJBDNS on my server. I haven't been having too much luck. I have been following the guide provided by the creator of DJBDNS: http://cr.yp.to/djbdns/run-server.html
Here is a run-through of where I am:
Both services are up:
[root@Happycat tinydns]$ svstat /service/tinydns/
/service/tinydns/: up (pid 18224) 74454 seconds
[root@Happycat tinydns]$ svstat /service/dnscache/
/service/dnscache/: up (pid 2733) 2184 seconds
My /etc/resolv.conf file:
nameserver 127.0.0.1
My $PATH:
[root@Happycat ~]$ echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/sbin:/usr/sbin:/var/qmail/bin/:/usr/nexkit/bin:/root/bin
My tinydns/root/data records:
..:69.160.56.65:a:259200
.ns1.benwilk.com:69.160.56.65:a:259200
.ns2.benwilk.com:69.160.56.65:a:259200
.56.160.69.in-addr.arpa:69.160.56.65:a:259200
.56.160.69.in-addr.arpa:69.160.56.65:b:259200
=benwilk.com:69.160.56.65:86400
=openbarrel.net:69.160.56.65:86400
+www.openbarrel.net:69.160.56.65:86400
+www.benwilk.com:69.160.56.65:86400
Tiny dns can recognize the records set:
[root@Happycat root]$ tinydns-get a benwilk.com
1 benwilk.com:
78 bytes, 1+1+1+1 records, response, authoritative, noerror
query: 1 benwilk.com
answer: benwilk.com 86400 A 69.160.56.65
authority: . 259200 NS a.ns
additional: a.ns 259200 A 69.160.56.65
But then it comes to a grinding halt:
svscan /service/tinydns/
supervise: fatal: unable to start env/run: file does not exist
supervise: fatal: unable to acquire log/supervise/lock: temporary failure
supervise: fatal: unable to start supervise/run: file does not exist
supervise: fatal: unable to start root/run: file does not exist
supervise: fatal: unable to start env/run: file does not exist
supervise: fatal: unable to start supervise/run: file does not exist
supervise: fatal: unable to start root/run: file does not exist
supervise: fatal: unable to start env/run: file does not exist
supervise: fatal: unable to start supervise/run: file does not exist
supervise: fatal: unable to start root/run: file does not exist
supervise: fatal: unable to start env/run: file does not exist
supervise: fatal: unable to start supervise/run: file does not exist
supervise: fatal: unable to start root/run: file does not exist
supervise: fatal: unable to start env/run: file does not exist
supervise: fatal: unable to start supervise/run: file does not exist
supervise: fatal: unable to start root/run: file does not exist
supervise: fatal: unable to acquire log/supervise/lock: temporary failure
supervise: fatal: unable to start env/run: file does not exist
supervise: fatal: unable to start supervise/run: file does not exist
supervise: fatal: unable to start root/run: file does not exist
I'm assuming I have to set something with DNScache, and to be honest, it gets a bit confusing. I'm not sure whether to set it's IP address to 127.0.0.1 or one of the other IP addresses on the system. What am I missing from here?
Hi all
I use my mac's internet sharing to create wireless network for my ipod touch. I have a linux server and I use socks proxy. I wanna use this proxy on my ipod but i don't know how. I put my shared network connection behind the proxy with localhost ip but my ipod isn't behind the proxy. any ideas?
I got that message and i dont know what it is means:
Oct 21 12:24:26 lex mysql-proxy: 2013-10-21 12:24:26: ((error)) last message repeated 98 times
Oct 21 12:24:26 lex mysql-proxy: 2013-10-21 12:24:26: ((error)) network-mysqld-packet.c.596: COM_(0x04) should not be (OK|ERR|NULL), got: 00
Oct 21 12:24:26 lex kernel: [4163416.207121] mysql-proxy[14271] trap int3 ip:7ff96e8a4313 sp:7fffb9086ad0 error:0
Any idea what can be the cause of it ?
How can I limit the upload and download bandwidth on my CentOS server? This is a box with a single interface, eth0.
Ideally, I would like a command-line solution (I've been trying to use tc), something that I could easily switch on and off in a script.
So far I've been trying to do something like tc filter add dev eth0 protocolip prio 50 u32 police rate 100kbit burst 10240 drop but I'm obviously missing a lot of knowledge and information. Can somebody help with a quick one-liner?
Many thanks,
Dan
I'm total newbie at tcp/ip and I was experimenting with Wireshark.
What this mean:
1824 578.194204 xxx.xxx.xxx.xxx yyy.yyy.yyy.yyy UDP Source port: 17500 Destination port: 17500
In data I can see that my user pc name is sent (happily it's a generic name): does this mean someone is trying to hack my pc ?