| 1 | Advanced Registry Operations Curriculum |
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| 2 | |
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| 3 | Using Rancid - Part I |
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| 4 | --------------------- |
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| 5 | |
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| 6 | 0. Log in to your PC or open a terminal window as the tladmain user. |
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| 7 | |
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| 8 | 1. Verify that postfix (mail system) is installed and running. |
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| 9 | |
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| 10 | $ ps ax | grep postfix |
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| 11 | |
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| 12 | 2. Add an alias for the rancid user in /etc/aliases file |
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| 13 | |
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| 14 | $ sudo vi /etc/aliases |
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| 15 | |
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| 16 | rancid-all: tldadmin |
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| 17 | rancid-admin-all: tldadmin |
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| 18 | |
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| 19 | Save the file, then run: |
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| 20 | |
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| 21 | $ sudo newaliases |
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| 22 | |
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| 23 | 3. Install Rancid itself |
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| 24 | |
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| 25 | $ sudo apt-get install rancid-core |
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| 26 | |
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| 27 | (Say yes to the questions) |
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| 28 | |
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| 29 | $ sudo apt-get install rancid-util |
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| 30 | $ sudo apt-get install rancid-cgi |
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| 31 | $ sudo apt-get install cvsweb |
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| 32 | $ sudo apt-get install cvs |
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| 33 | |
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| 34 | Or you could install everything at once: |
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| 35 | |
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| 36 | $ sudo apt-get install rancid-util rancid-cgi cvsweb cvs |
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| 37 | |
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| 38 | 4. Edit /etc/rancid/rancid.conf |
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| 39 | |
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| 40 | $ sudo vi /etc/rancid/rancid.conf |
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| 41 | |
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| 42 | Find the line with the parameter LIST_OF_GROUPS, and replace it with |
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| 43 | |
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| 44 | LIST_OF_GROUPS="all" |
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| 45 | |
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| 46 | 5. Choose which router you will manage: |
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| 47 | |
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| 48 | tld1 - tld9 10.10.10.21 |
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| 49 | tld10 - tld18 10.10.10.22 |
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| 50 | |
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| 51 | |
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| 52 | 6. Change to the rancid user |
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| 53 | |
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| 54 | - First you need to become the root user: |
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| 55 | |
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| 56 | $ su - |
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| 57 | |
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| 58 | Now you can become the RANCID user: |
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| 59 | |
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| 60 | # su -s /bin/bash rancid |
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| 61 | |
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| 62 | - Check that you ARE the rancid user: |
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| 63 | |
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| 64 | $ id |
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| 65 | |
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| 66 | - You should see something similar: |
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| 67 | |
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| 68 | uid=115(rancid) gid=123(rancid) groups=123(rancid) |
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| 69 | |
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| 70 | 7. Create /var/lib/rancid/.cloginrc |
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| 71 | |
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| 72 | R vi /var/lib/rancid/.cloginrc |
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| 73 | |
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| 74 | add user 10.10.10.xxx tldadmin |
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| 75 | add password 10.10.10.xxx tldadmin tldadmin |
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| 76 | |
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| 77 | (Remember to replace xxx with .21 for group 1, or .22 for group 2) |
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| 78 | |
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| 79 | $ chmod 600 /var/lib/rancid/.cloginrc |
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| 80 | |
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| 81 | 7. Initialize the CVS repository for rancid: |
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| 82 | |
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| 83 | $ /usr/lib/rancid/bin/rancid-cvs |
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| 84 | |
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| 85 | - You should see something similar to this: |
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| 86 | |
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| 87 | No conflicts created by this import |
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| 88 | |
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| 89 | cvs checkout: Updating all |
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| 90 | Directory /var/lib/rancid/CVS/all/configs added to the repository |
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| 91 | cvs commit: Examining configs |
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| 92 | cvs add: scheduling file `router.db' for addition |
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| 93 | cvs add: use `cvs commit' to add this file permanently |
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| 94 | /var/lib/rancid/CVS/all/router.db,v <-- router.db |
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| 95 | initial revision: 1.1 |
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| 96 | |
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| 97 | |
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| 98 | 8. Test login to the router |
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| 99 | |
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| 100 | $ /usr/lib/rancid/bin/clogin 10.10.10.xxx |
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| 101 | |
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| 102 | (where xxx is the IP of the router (either .21 or .22)) |
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| 103 | |
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| 104 | - You should now be logged in to the router, and see something like: |
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| 105 | |
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| 106 | router1> |
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| 107 | |
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| 108 | - Type 'exit' to logout |
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| 109 | |
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| 110 | 9. Add the router.db |
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| 111 | |
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| 112 | $ vi /var/lib/rancid/all/router.db |
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| 113 | |
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| 114 | Add: |
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| 115 | |
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| 116 | 10.10.10.xxx:cisco:up |
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| 117 | |
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| 118 | (remember to replace xxx with .21 or .22) |
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| 119 | |
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| 120 | 10. Let's run rancid! |
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| 121 | |
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| 122 | $ /usr/lib/rancid/bin/rancid-run |
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| 123 | |
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| 124 | (Should take a few seconds) |
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| 125 | |
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| 126 | 11. Check out the logs: |
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| 127 | |
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| 128 | $ cd /var/lib/rancid/logs |
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| 129 | $ ls -l |
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| 130 | |
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| 131 | ... View the contents of the file: |
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| 132 | |
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| 133 | $ more all.* |
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| 134 | |
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| 135 | |
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| 136 | 12. Look at the configs |
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| 137 | |
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| 138 | $ cd /var/lib/rancid/all/configs |
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| 139 | $ more 10.10.10.xxx |
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| 140 | |
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| 141 | - If all went well, you can see the config of the router. |
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| 142 | |
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| 143 | |
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| 144 | 13. Let's change an interface Description on the router |
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| 145 | |
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| 146 | $ /usr/lib/rancid/bin/clogin 10.10.10.xxx |
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| 147 | |
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| 148 | - At the "router1>" prompt, enter the command: |
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| 149 | |
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| 150 | config terminal |
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| 151 | |
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| 152 | - You should see: |
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| 153 | |
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| 154 | Enter configuration commands, one per line. End with CNTL/Z. |
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| 155 | router1(config)# |
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| 156 | |
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| 157 | - Enter: |
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| 158 | |
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| 159 | interface Ethernet0/0 |
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| 160 | |
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| 161 | - You should get this prompt: |
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| 162 | |
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| 163 | router1(config-if)# |
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| 164 | |
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| 165 | - Enter: |
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| 166 | |
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| 167 | router1(config-if)> description Internal Interface for 10.10.10.xxx/24 |
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| 168 | |
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| 169 | |
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| 170 | - Then type CTRL-Z (press Control + the Z key) |
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| 171 | |
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| 172 | - You should now have this prompt: |
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| 173 | |
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| 174 | router1> |
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| 175 | |
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| 176 | - To save the config to memory: |
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| 177 | |
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| 178 | write memory |
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| 179 | |
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| 180 | - You should see: |
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| 181 | |
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| 182 | Building configuration... |
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| 183 | [OK] |
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| 184 | |
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| 185 | - To exit type: |
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| 186 | |
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| 187 | exit |
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| 188 | |
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| 189 | 14. Let's run rancid again: |
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| 190 | |
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| 191 | $ /usr/lib/rancid/bin/rancid-run |
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| 192 | |
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| 193 | Look at the config and logs |
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| 194 | |
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| 195 | $ ls /var/lib/rancid/logs/ |
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| 196 | |
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| 197 | 15. Let's see the differences |
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| 198 | |
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| 199 | $ cd /var/lib/rancid/all/configs |
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| 200 | $ ls -l |
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| 201 | |
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| 202 | You should see all the router config files |
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| 203 | |
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| 204 | $ cvs log 10.10.10.xxx |
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| 205 | |
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| 206 | (where xxx is the IP of your router, .21 or .22) |
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| 207 | |
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| 208 | Notice the revisions. Let's view the difference between two versions: |
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| 209 | |
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| 210 | $ cvs diff -r 1.2 -r 1.3 10.10.10.xxx | more |
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| 211 | |
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| 212 | ... can you find your changes ? |
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| 213 | |
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| 214 | 16. Check your mail |
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| 215 | |
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| 216 | As the user "tldadmin", run the "mutt" mailer to see the mails that |
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| 217 | Rancid has sent: |
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| 218 | |
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| 219 | $ exit |
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| 220 | # su - tldadmin |
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| 221 | |
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| 222 | $ mutt |
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| 223 | |
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| 224 | If everything goes as planned, you should be able to read the mails |
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| 225 | sent by Rancid. |
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| 226 | |
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| 227 | (use q or x to quit mutt) |
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| 228 | |
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| 229 | 17. Finally, let's make rancid run automatically every 30 minutes from cron |
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| 230 | |
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| 231 | $ crontab -e |
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| 232 | |
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| 233 | - Add this line: |
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| 234 | |
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| 235 | */30 * * * * /usr/lib/rancid/bin/rancid-run |
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| 236 | |
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| 237 | ... then save and quit |
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| 238 | |
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