I am using the command: Code: sudo stty -F /dev/ttyUSB0 115200 to try and change the baud rate from 9600 to 115200 on device USB0, but I keep getting this error. Code: stty: /dev/ttyUSB0: unable to perform all requested operations ttyUSB0 is not locked, and I know it is capable of 230400 b/s so I know it should handle 115200 just fine.
I am writing a simple serial port programing based on s3c2410. However, I found that I cannot change serial port attributes including baud rate using tcsetattr. I think i have follow "Serial Programming Guid for POSIX operating system" strictly, but why it does not work? the baund rate cannot be changed to 115200?
I am using openSUSE 11.3 , 32bit.I do the appropriate setting in 'minicom' application.I have two devices 'a' giving message at debug port at 9600 baud while 'b' at 115200 baud..Both 'a' & 'b' work fine when connected to serial port of computer.'a' works well if I connect it to serial to USB adapter which is plugged into USB port of computer.In case of 'b' , the above method yields failure.Do I have to set anything for device /dev/ttyUSB0 ?
I came to a "weird" situation when I saw in yum log files that several centOS systems have been automatically updated via yum. I checked the following: 1. chkconfig for init services that could upgrade the system: only yum-updatesd 2. In the config file of yum-updatesd.conf the do_update function is set to no. 3. If an updated made manually by a user ..no. Where else should I look or how this update happened?
I desperately want to get away from DOS and Windows, change to Linux... however I need 6400 baud for a special dongle. I found out my PC is working in Windows perfect at this baudrate, but in Linux it is unsupported.termios.h seems to have no support. I'm programming in C++ and want to use 6400 baud.
With setserial software I can have a divisor of 18, then the baudrate = 115200/18 = 6400. However, I want to use it in my programs (G++) and maybe also in Dosbox until my program is completely converted to Linux... however, if Linux does NOT support 6400 baud this operating system I have to stick to MFC, which is terrible.
I have a RedHat box that I have configured, security, audit rules, latest updates, etc. I want to be able to "image" that configuration so I can kick other boxes with that "image", that way no other configuration/updating needs to be done on the newly kicked boxes. What is the best way to accomplish this? To make things more difficult, it would be near to impossible for me to pull any software off the internet for this.
Configuring PIII600e, Slackware 12.2, with 2hdd (160Gb each) for Virtual Web,MySQL,PHP,DDNS,SSHd,Mail,ProFTP servers. I have 3 other PCs w/Slackware12.2, 1 XPwindows, and mac laptop on the LAN. Will be putting webpages together on slackware 12.2, XP, and Mac. *Read some where I don't need /home directory on server box, just use /home directory from other slackware box's /home directory- Since only user on server will be Administrator - how does this work? Will i work with Dupral? Does an Admin directory take the place of home? explain the advantages of configuring server box without /home directory and how its done?
I am trying to get Debian 6 to work on an hp Z400 - the problem is that it came with a NVIDIA Quadro NVS 295 graphics card; there may be a driver for Linux, but it doesn't matter, because GRUB insists on switching to some sort of graphics mode and the screen just blanks and switches itself off. Is there any way to make sure during installation that GRUB gets configured to stay in character mode only?
Iam using public ftp server,the server file transfer rate is very very slow & the server is also very slow,In which way can i check the server to make it fast,can any one give sugession on this.
We're building an Email Marketing web site for internal staff who needs to send emails to thousands of customers.but we're wondering if it's possible to control the MTA delivery rate, such as:
1. for @xxxx.com, only allows 5 con-current smtp connections and 100 emails/minutes?
2. how to bind multiple IPs and send emails in round-robin mechanism?
3. how to pause (such as: 10ms) between every delivery?
if you are familiar with Ironport's product, you may already know what we want to achieve.
I have about 5 machines that are under Ddos daily and I use rate-limit for Iptables to protect that and it works good.My UDP ports 20100 to 20400 are actually under Ddos so these are the commands I use:
Code: A INPUT -p udp -m udp --dport 20100:20500 -m state --state NEW -m recent --set --name DEFAULT --rsource
I just install a new server and I would like to now what are the basics that I should install. It currently has LAMP stuff. Any one know how are the VPS server configured at hostgator.com and similar web hosting platforms.
I googled upto my capability but cant find answer so asking you In one of my apache 2.0.52 machines, we are using worker MPM model. Even if I use 1 start servers, the # of http processes it starts is 5. No matter what value I pass in StartServers, I dont see more than 5-6 http processes
Multipathing in linux -need to check how the luns are configuredI have no idea about luns configuration in linux environment(newbie) and now i have issue figuring out the configurationSenario,By the look of the multipath output 3 luns are connected to server1 is from Hitachi and 2 from Sunstorage(Thumper)What i am trying to achieve,I need to check how the 3 luns are configured on OS levelI need to differentiate Hitachi and thumper lun The next is to check whether 3 luns are mirrored or not (if not ,how they configured)The third and last .I need to remove the mirroring luns (if exist) and leave the system with only Hitachi lun
I installed sendmail in my fedora 7 system. i took the advice as provided in this url [url] I started with "Configuring s`endmail"
Then i went with installing MailScanner without going to clamav and spamassasin installation as i don need it.
I just configured my local domain and assigned a my own IP address. But there was nothing mentioned with configuring the port number. So i just went with "netstat -nl" command. And it showed that my IP is lisening on port 53.
I created 2 users for the domain and i sent mail via telnet. The mail entry got entered in maillog file. But i receive multiple unwanted entries that mail is sent from "root" to "root". But i didn't bother about that.
I proceeded with the next step of configuring the two users on thunderbird. I configured with pop3 on port 53 with the localdomain. Now i sent mail from one user to the other. The mail entry got stored in maillog but i couldn't retrieve the mail on my inbox.
i have installed centos 5.5 and rhel5 on vmware but i want to use rhel5 as a yum-client of centos 5.5 . but it is not working for me.i have worked on rhel5 with yum already but there was no problem at all.i am using centos 5.5 first time so i want to know whether there is any difference b/w configuring rhel5 and centos5.5?my centos 5.5 yum server file is given below
I have configured an nfs server like this: #vi /etc/exports /var/ftp/pub*.dell.com(rw,sync)& configured yum server from client yum update is working but by using nfs method if i am trying to mount i am getting this message mount 192.168.0.254:/var/ftp/pub failed,reason given by serverermission denied
When I start the vncserver process, I get a message saying "Starting VNC server: no displays configured." I edited the /root/.vnc/xstartup file and changed twm & to say "gnome-session &" (Without quotes). Not sure why I am still seeing this error. It's CentOS 5.4.
I have a openvpn server configured and users are using from remote location. I got some errors in the /var/log/messages file as:PHP Code:
Dec 18 16:09:37system openvpn[7221]: x.x.x.x:58983 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity) Dec 18 16:09:37 system openvpn[7221]: x.x.x.x:58983 TLS Error: TLS handshake fai
I just installed Debian 5.0.4 successfully. I want to use the PC as a File Server with two Drives configured as a RAID 1 device. Everything with the RAID device works fine, the only question I have belogs to the GRUB 0.97 Booloader. I would like to be able to boot my Server even if one of the disks fail or the filesystem containing the OS becomes corrupt, so I configured only the data partitions to be a RAID 1 device, so on the second disk should be a copy of the last stable installation, similar to this guide:[URL]...
I want to know something: i have a OS based on Debian configured and installed on a machine that controls all the network. Then, I can access it via another machine (with Windows for example) (connected by crossover cable or using a switch) by a web browser where I can do everything, including adding hosts, adding users, configure mail servers, voip, configure domains, etc etc etc..I would like to install Nagios on my server but I would like to monitor the hosts, routers that I have on the network using the Windows machine. How can I do that? Isn't it supposed to access the nagios information only in the machine where it is installed?